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\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a COLLATE \uff0c ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002</p><p>\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a<code class=\"type\">int4</code>\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a<code class=\"literal\">COLLATE</code>\uff0c<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code>\uff09\u3002\n  </p><p>   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/10/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "10", "link_map": {"/zh/docs/10/indexes-opclass.html": "/docs/10/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002</p><p>\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b <code>int4</code> \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a<code>int4</code>\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a<code>COLLATE</code>\uff0c<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code>\uff09\u3002\n  </p><p>   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/10/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "bb06b2e91972f587ee7137476f5effa12fcbad5aae3b06055470f0e01be0be91", "content_hash": "5a3d68dc9b18285163c6815e7811e1b752f2fc8af16fb45295bf047939d17b72", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=10", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=10", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=10", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=10", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=10", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=10", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=10", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=10", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=10", "text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=10", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=10", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b int4 \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a int4 \u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a COLLATE \uff0c ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/10/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "f2ee5e4386a45a176aa7c61ff8d752aee0ce3aaea06553965bee526ab799f223", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/10/indexes-opclass.html", "method": "same-major semantic node", "sha256": "a63692e6035b21dab0183c026ca8b0c2ac480c3ca9833fdce2081537733252db", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.", "/versions/10/facts/0/label": "Object kind", "/versions/10/facts/0/value": "Operator family", "/versions/10/facts/1/label": "Index AM", "/versions/10/tables/0/title": "Family operator strategies", "/versions/10/tables/1/title": "Family support functions", "/versions/10/tables/2/title": "Classes in this family", "/versions/10/related/0/label": "B-tree Index AM", "/versions/10/sections/0/title": "Operator classes and families", "/versions/10/tables/0/rows/0/scope": "Family member", "/versions/10/tables/0/rows/1/scope": "Family member", "/versions/10/tables/0/rows/2/scope": "Family member", "/versions/10/tables/0/rows/3/scope": "Family member", "/versions/10/tables/0/rows/4/scope": "Family member", "/versions/10/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/10/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/10/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/10/tables/0/rows/0/purpose": "search", "/versions/10/tables/0/rows/1/purpose": "search", "/versions/10/tables/0/rows/2/purpose": "search", "/versions/10/tables/0/rows/3/purpose": "search", "/versions/10/tables/0/rows/4/purpose": "search", "/versions/10/tables/2/rows/0/default": "yes", "/versions/10/tables/0/columns/0/label": "Operator overload", "/versions/10/tables/0/columns/1/label": "Strategy", "/versions/10/tables/0/columns/2/label": "Purpose", "/versions/10/tables/0/columns/3/label": "Ordering family", "/versions/10/tables/0/columns/4/label": "Membership scope", "/versions/10/tables/0/columns/5/label": "Source description", "/versions/10/tables/1/columns/0/label": "Support number", "/versions/10/tables/1/columns/1/label": "Left type", "/versions/10/tables/1/columns/2/label": "Right type", "/versions/10/tables/1/columns/3/label": "Function signature", "/versions/10/tables/1/columns/4/label": "Result type", "/versions/10/tables/2/columns/0/label": "Class", "/versions/10/tables/2/columns/1/label": "Input type", "/versions/10/tables/2/columns/2/label": "Key type", "/versions/10/tables/2/columns/3/label": "Default", "/versions/10/tables/2/rows/0/key_type": "Same as input type", "/versions/10/tables/0/rows/0/description": "less than", "/versions/10/tables/0/rows/1/description": "less than or equal", "/versions/10/tables/0/rows/2/description": "equal", "/versions/10/tables/0/rows/3/description": "greater than or equal", "/versions/10/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "8ea089d526a195391eaa5324f9d87bca8b027cc260ddaaecd2fc48c170d94a58", "canonical_center_text_hash": "5a3d68dc9b18285163c6815e7811e1b752f2fc8af16fb45295bf047939d17b72"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}]}, "comparison_hash": "07453c276a435c49bbd14c8686abc857470e8d0a4efcb600717c401d390f4698", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002</p><p>\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b <code>int4</code> \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a<code>int4</code>\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a<code>COLLATE</code>\uff0c<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code>\uff09\u3002\n  </p><p>   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/10/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "11": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=11", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=11", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=11", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=11", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=11", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=11", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=11", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "11.22", "major": "11", "channel": "historical", "revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0", "source_sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0", "manual_fingerprint": "99c9e45d34555f000789cb4e019492e838041c1f2f31d840f3051ff9d7ed9118", "catalog_fingerprint": "4f08eb8c7ac7d09abfbb29a172148a44b8fb72026616bb55a5f8f84db7a38785"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, {"url": "/docs/11/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 11 English manual: indexes-opclass.html", "sha256": "234c67ab5a33096697e1851c197c79ba0e872686c7909c2696716a102253c7bd"}, {"url": "/docs/11/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 11 English manual: catalog-pg-opfamily.html", "sha256": "bc70c6a938dcf14c212ff9139ff1436f8292305ae551f7af4432c2b034d84070"}, {"url": "/docs/11/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 11 English manual: catalog-pg-amop.html", "sha256": "c17d050a6f2d093de2c343242bcc4d446b936de1d2902727d3fa3b0697b44fd3"}, {"url": "/docs/11/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 11 English manual: catalog-pg-amproc.html", "sha256": "819e66cb86af033d3328a3602c65c861e9f2d2c519d1f42f37fdd7766e1fc31f"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/11/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "1ad83a0beef158ff8346b350cd1b5de15598c9aff4156aa860271165fdf5fe51", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "6dfa7fdf7b68da3db8bec82bf45dd337543254e4dc5f9ba91aeb968b681da6d7", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "11", "text_hash": "dfdda1e5033d788c82ef08028b66f0fd83d41d40d1d7cb3d09ed1b668a9d02bc", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=11", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=11", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=11", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=11", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": 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"text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=11", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/11/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "1ad83a0beef158ff8346b350cd1b5de15598c9aff4156aa860271165fdf5fe51", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "6dfa7fdf7b68da3db8bec82bf45dd337543254e4dc5f9ba91aeb968b681da6d7", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/11/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "11", "link_map": {"/zh/docs/11/indexes-opclass.html": "/docs/11/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/11/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "b8ca72335d162af642b26fe5392d113f96332c8fd6da1ea5d37c6af28946044e", "content_hash": "dfdda1e5033d788c82ef08028b66f0fd83d41d40d1d7cb3d09ed1b668a9d02bc", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=11", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=11", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=11", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=11", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=11", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=11", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=11", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/11/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "d4e01ba05c1f00188e2353ef6816dbe175140ae359defc71e20f92fb0e69299a", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/11/indexes-opclass.html", "method": "same-major semantic node", "sha256": "89f6f02b6aadf86b19cfce09618561d39321a355dbce65ca30759d9044f1ac44", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.", "/versions/11/facts/0/label": "Object kind", "/versions/11/facts/0/value": "Operator family", "/versions/11/facts/1/label": "Index AM", "/versions/11/tables/0/title": "Family operator strategies", "/versions/11/tables/1/title": "Family support functions", "/versions/11/tables/2/title": "Classes in this family", "/versions/11/related/0/label": "B-tree Index AM", "/versions/11/sections/0/title": "Operator classes and families", "/versions/11/tables/0/rows/0/scope": "Family member", "/versions/11/tables/0/rows/1/scope": "Family member", "/versions/11/tables/0/rows/2/scope": "Family member", "/versions/11/tables/0/rows/3/scope": "Family member", "/versions/11/tables/0/rows/4/scope": "Family member", "/versions/11/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/11/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/11/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/11/tables/0/rows/0/purpose": "search", "/versions/11/tables/0/rows/1/purpose": "search", "/versions/11/tables/0/rows/2/purpose": "search", "/versions/11/tables/0/rows/3/purpose": "search", "/versions/11/tables/0/rows/4/purpose": "search", "/versions/11/tables/2/rows/0/default": "yes", "/versions/11/tables/0/columns/0/label": "Operator overload", "/versions/11/tables/0/columns/1/label": "Strategy", "/versions/11/tables/0/columns/2/label": "Purpose", "/versions/11/tables/0/columns/3/label": "Ordering family", "/versions/11/tables/0/columns/4/label": "Membership scope", "/versions/11/tables/0/columns/5/label": "Source description", "/versions/11/tables/1/columns/0/label": "Support number", "/versions/11/tables/1/columns/1/label": "Left type", "/versions/11/tables/1/columns/2/label": "Right type", "/versions/11/tables/1/columns/3/label": "Function signature", "/versions/11/tables/1/columns/4/label": "Result type", "/versions/11/tables/2/columns/0/label": "Class", "/versions/11/tables/2/columns/1/label": "Input type", "/versions/11/tables/2/columns/2/label": "Key type", "/versions/11/tables/2/columns/3/label": "Default", "/versions/11/tables/2/rows/0/key_type": "Same as input type", "/versions/11/tables/0/rows/0/description": "less than", "/versions/11/tables/0/rows/1/description": "less than or equal", "/versions/11/tables/0/rows/2/description": "equal", "/versions/11/tables/0/rows/3/description": "greater than or equal", "/versions/11/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "f4a639d2e4c8ee6cce1515884221aa3bf3ac0b4b59147f00b7d120187d8ebcbb", "canonical_center_text_hash": "dfdda1e5033d788c82ef08028b66f0fd83d41d40d1d7cb3d09ed1b668a9d02bc"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}]}, "comparison_hash": "07453c276a435c49bbd14c8686abc857470e8d0a4efcb600717c401d390f4698", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/11/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "12": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=12", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=12", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=12", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=12", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=12", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=12", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=12", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "label": "12.22", "major": "12", "channel": "historical", "revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b", "source_sha256": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b", "manual_fingerprint": "535df36baec2140f211303631c0a3f64e02d2673b9d34cb050d247997c94bd1e", "catalog_fingerprint": "1f423fd3c5fb61c039f8814116ce19dedbb2804bc864599818e88cbc4f5f284a"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, {"url": "/docs/12/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 12 English manual: indexes-opclass.html", "sha256": "bdd742eaf65ab7addb35aa56509afe244d63775521460a046bf76f50bc0389db"}, {"url": "/docs/12/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 12 English manual: catalog-pg-opfamily.html", "sha256": "75a570e54ddf195baf23b86b05e0409dabae1f98dd223f9ca028e70deb4f3435"}, {"url": "/docs/12/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 12 English manual: catalog-pg-amop.html", "sha256": "84b91a9d763b1fb2968cc8be226a0369d31a6acb2468eb56cfd0b8d2030d1b45"}, {"url": "/docs/12/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 12 English manual: catalog-pg-amproc.html", "sha256": "8fecd047164ac5772bb48770067c55ab89a810d2ee1686ed316738bc0c18e330"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/12/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "12", "build_id": 65, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "9e99e81f1c125188bfc1f1d0a61066939ae3307e6311b04025d5cf658d2aa430", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "4450c14a0c660055628a1d5bdeea34d4e1ab6ae98b2e3e12483760a7efc7e52a", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "12", "text_hash": "56243b3e34a6816bc8f362d0e4d2b7ad32cd91b20546fe693d8c55befbf6f2ef", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=12", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=12", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=12", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=12", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=12", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=12", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/12/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "12", "build_id": 65, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "9e99e81f1c125188bfc1f1d0a61066939ae3307e6311b04025d5cf658d2aa430", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "4450c14a0c660055628a1d5bdeea34d4e1ab6ae98b2e3e12483760a7efc7e52a", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/12/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "12", "link_map": {"/zh/docs/12/indexes-opclass.html": "/docs/12/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/12/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "435114431a34b49a28a3a93c2b68bd7dda503df316afbab633e8f5a3b62b8d30", "content_hash": "56243b3e34a6816bc8f362d0e4d2b7ad32cd91b20546fe693d8c55befbf6f2ef", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=12", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=12", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=12", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=12", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=12", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=12", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=12", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/12/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "fb1485d72baa6293bbb9db509168fcb9e29aeb84d9eaa463046dffc10c6689ab", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/12/indexes-opclass.html", "method": "same-major semantic node", "sha256": "caf2c6c72b3142db3faa12936bdc35bae99e5144454f5c7391fc02cc93ba1cb1", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/12/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.", "/versions/12/facts/0/label": "Object kind", "/versions/12/facts/0/value": "Operator family", "/versions/12/facts/1/label": "Index AM", "/versions/12/tables/0/title": "Family operator strategies", "/versions/12/tables/1/title": "Family support functions", "/versions/12/tables/2/title": "Classes in this family", "/versions/12/related/0/label": "B-tree Index AM", "/versions/12/sections/0/title": "Operator classes and families", "/versions/12/tables/0/rows/0/scope": "Family member", "/versions/12/tables/0/rows/1/scope": "Family member", "/versions/12/tables/0/rows/2/scope": "Family member", "/versions/12/tables/0/rows/3/scope": "Family member", "/versions/12/tables/0/rows/4/scope": "Family member", "/versions/12/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/12/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. 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"/versions/12/tables/1/columns/1/label": "Left type", "/versions/12/tables/1/columns/2/label": "Right type", "/versions/12/tables/1/columns/3/label": "Function signature", "/versions/12/tables/1/columns/4/label": "Result type", "/versions/12/tables/2/columns/0/label": "Class", "/versions/12/tables/2/columns/1/label": "Input type", "/versions/12/tables/2/columns/2/label": "Key type", "/versions/12/tables/2/columns/3/label": "Default", "/versions/12/tables/2/rows/0/key_type": "Same as input type", "/versions/12/tables/0/rows/0/description": "less than", "/versions/12/tables/0/rows/1/description": "less than or equal", "/versions/12/tables/0/rows/2/description": "equal", "/versions/12/tables/0/rows/3/description": "greater than or equal", "/versions/12/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "a0df56b1a6adff0f8ba39b88cf685b25afab5831d2bb2525bad64641e2b7dc9f", "canonical_center_text_hash": "56243b3e34a6816bc8f362d0e4d2b7ad32cd91b20546fe693d8c55befbf6f2ef"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}]}, "comparison_hash": "07453c276a435c49bbd14c8686abc857470e8d0a4efcb600717c401d390f4698", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/12/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "13": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=13", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=13", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=13", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=13", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=13", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=13", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=13", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "13.23", "major": "13", "channel": "historical", "revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6", "source_sha256": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6", "manual_fingerprint": "2bbea71f4723fc9e4e58cfdb28368763f999de2800d45ade748f7c7546dfb9d3", "catalog_fingerprint": "df58d29b226fbb90326087233d7970032abdec1352373270449eeee324f84a35"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, {"url": "/docs/13/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 13 English manual: indexes-opclass.html", "sha256": "37723d8b80464e32b69ead59eff6160555679eb963ab37c5c3a8a6cbae1b152b"}, {"url": "/docs/13/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 13 English manual: catalog-pg-opfamily.html", "sha256": "238c97d1b6b9532d52b4cd0cc25f2b48be0dc4f2909858a45553863e801a969d"}, {"url": "/docs/13/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 13 English manual: catalog-pg-amop.html", "sha256": "7a8e67f8dc59c305612c6d029fc8760c092f27203d5338c6db6c6d9b8aabc561"}, {"url": "/docs/13/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 13 English manual: catalog-pg-amproc.html", "sha256": "7304d151ac7c668be22d688c152e43989557f61455a75dc74f4660363e7ab9ef"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/13/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "a0195016f729f1cf7c03c7c1344f2a62ff6b78f9a4eb1f299eab7720fd80182c", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "f043301ac274f8a732f7fa57d8811cc833749dbec6af29b2c0da1aa585d21ea0", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "13", "text_hash": "a4d9e980ba2ca08d3a9ac23974c6f27dcf7aae6e6371e5185b437e23d93a3448", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=13", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=13", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=13", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=13", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=13", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=13", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/13/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "a0195016f729f1cf7c03c7c1344f2a62ff6b78f9a4eb1f299eab7720fd80182c", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "f043301ac274f8a732f7fa57d8811cc833749dbec6af29b2c0da1aa585d21ea0", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/13/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "13", "link_map": {"/zh/docs/13/indexes-opclass.html": "/docs/13/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/13/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "0a03ee8aa0914194beb30dec484b77b8db5b017baeead49796089fdca487c953", "content_hash": "a4d9e980ba2ca08d3a9ac23974c6f27dcf7aae6e6371e5185b437e23d93a3448", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=13", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=13", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=13", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=13", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=13", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=13", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=13", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/13/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "344df36a802a949f2a1e178d6708bf07012cd0daff6368987f59cab3023d2853", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/13/indexes-opclass.html", "method": "same-major semantic node", "sha256": "000af3648471325f388091b478e7d22683ce58bd59f5f9463c09b36504a22d3d", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/13/facts/0/label": "Object kind", "/versions/13/facts/0/value": "Operator family", "/versions/13/facts/1/label": "Index AM", "/versions/13/tables/0/title": "Family operator strategies", "/versions/13/tables/1/title": "Family support functions", "/versions/13/tables/2/title": "Classes in this family", "/versions/13/related/0/label": "B-tree Index AM", "/versions/13/sections/0/title": "Operator classes and families", "/versions/13/tables/0/rows/0/scope": "Family member", "/versions/13/tables/0/rows/1/scope": "Family member", "/versions/13/tables/0/rows/2/scope": "Family member", "/versions/13/tables/0/rows/3/scope": "Family member", "/versions/13/tables/0/rows/4/scope": "Family member", "/versions/13/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/13/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/13/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/13/tables/0/rows/0/purpose": "search", "/versions/13/tables/0/rows/1/purpose": "search", "/versions/13/tables/0/rows/2/purpose": "search", "/versions/13/tables/0/rows/3/purpose": "search", "/versions/13/tables/0/rows/4/purpose": "search", "/versions/13/tables/2/rows/0/default": "yes", "/versions/13/tables/0/columns/0/label": "Operator overload", "/versions/13/tables/0/columns/1/label": "Strategy", "/versions/13/tables/0/columns/2/label": "Purpose", "/versions/13/tables/0/columns/3/label": "Ordering family", "/versions/13/tables/0/columns/4/label": "Membership scope", "/versions/13/tables/0/columns/5/label": "Source description", "/versions/13/tables/1/columns/0/label": "Support number", "/versions/13/tables/1/columns/1/label": "Left type", "/versions/13/tables/1/columns/2/label": "Right type", "/versions/13/tables/1/columns/3/label": "Function signature", "/versions/13/tables/1/columns/4/label": "Result type", "/versions/13/tables/2/columns/0/label": "Class", "/versions/13/tables/2/columns/1/label": "Input type", "/versions/13/tables/2/columns/2/label": "Key type", "/versions/13/tables/2/columns/3/label": "Default", "/versions/13/tables/2/rows/0/key_type": "Same as input type", "/versions/13/tables/0/rows/0/description": "less than", "/versions/13/tables/0/rows/1/description": "less than or equal", "/versions/13/tables/0/rows/2/description": "equal", "/versions/13/tables/0/rows/3/description": "greater than or equal", "/versions/13/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "4c7310ecc95d933963eeb2a1aaf6b54d8fca9499058f1961279245715c046066", "canonical_center_text_hash": "a4d9e980ba2ca08d3a9ac23974c6f27dcf7aae6e6371e5185b437e23d93a3448"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/13/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "14": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=14", 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"description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", 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"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "14", "text_hash": "b66eca027aca7a779561e6e7423284988fac7406b786aaa7b12db7f5e00f97aa", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=14", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=14", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=14", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=14", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=14", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=14", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/14/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "14", "build_id": 99, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "503c4861e6fb3e17851c6c632abd4dbe3987258ed746ad484a08f199d2add809", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:87e6aa4fd6e1ec85c5f4a6de4f5647cfd9e5de734ca2c266d32b6d6192c662ef", "translated_from_revision": null}, "body_sha256": "6a9cc86e1f7ef487e20b3bf0c72409760dc57d5ec8aa971e54a98c9980bb2b52", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/14/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "14", "link_map": {"/zh/docs/14/indexes-opclass.html": "/docs/14/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/14/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "250320b87cfb4f1ff49342e4a6dff0f786386d880bd4d3b4d30673f5fe93e22d", "content_hash": "b66eca027aca7a779561e6e7423284988fac7406b786aaa7b12db7f5e00f97aa", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=14", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=14", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=14", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=14", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=14", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=14", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=14", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/14/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "2b8fdc15654f6701ab77bdf068a2c3b50cadd8da3bce8f385811b4193b4952b4", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/14/indexes-opclass.html", "method": "same-major semantic node", "sha256": "4cb8380e551ee45907962594be66e8173948c404caa5f227b1672e5d298bd128", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/14/facts/0/label": "Object kind", "/versions/14/facts/0/value": "Operator family", "/versions/14/facts/1/label": "Index AM", "/versions/14/tables/0/title": "Family operator strategies", "/versions/14/tables/1/title": "Family support functions", "/versions/14/tables/2/title": "Classes in this family", "/versions/14/related/0/label": "B-tree Index AM", "/versions/14/sections/0/title": "Operator classes and families", "/versions/14/tables/0/rows/0/scope": "Family member", "/versions/14/tables/0/rows/1/scope": "Family member", "/versions/14/tables/0/rows/2/scope": "Family member", "/versions/14/tables/0/rows/3/scope": "Family member", "/versions/14/tables/0/rows/4/scope": "Family member", "/versions/14/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/14/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/14/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/14/tables/0/rows/0/purpose": "search", "/versions/14/tables/0/rows/1/purpose": "search", "/versions/14/tables/0/rows/2/purpose": "search", "/versions/14/tables/0/rows/3/purpose": "search", "/versions/14/tables/0/rows/4/purpose": "search", "/versions/14/tables/2/rows/0/default": "yes", "/versions/14/tables/0/columns/0/label": "Operator overload", "/versions/14/tables/0/columns/1/label": "Strategy", "/versions/14/tables/0/columns/2/label": "Purpose", "/versions/14/tables/0/columns/3/label": "Ordering family", "/versions/14/tables/0/columns/4/label": "Membership scope", "/versions/14/tables/0/columns/5/label": "Source description", "/versions/14/tables/1/columns/0/label": "Support number", "/versions/14/tables/1/columns/1/label": "Left type", "/versions/14/tables/1/columns/2/label": "Right type", "/versions/14/tables/1/columns/3/label": "Function signature", "/versions/14/tables/1/columns/4/label": "Result type", "/versions/14/tables/2/columns/0/label": "Class", "/versions/14/tables/2/columns/1/label": "Input type", "/versions/14/tables/2/columns/2/label": "Key type", "/versions/14/tables/2/columns/3/label": "Default", "/versions/14/tables/2/rows/0/key_type": "Same as input type", "/versions/14/tables/0/rows/0/description": "less than", "/versions/14/tables/0/rows/1/description": "less than or equal", "/versions/14/tables/0/rows/2/description": "equal", "/versions/14/tables/0/rows/3/description": "greater than or equal", "/versions/14/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "66c77deb35d5dd0db423148c1a0ef447f8088ea3d0e4c3efd3e6eac10dbddd2a", "canonical_center_text_hash": "b66eca027aca7a779561e6e7423284988fac7406b786aaa7b12db7f5e00f97aa"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/14/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "15": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=15", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=15", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=15", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=15", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=15", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", 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\u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/15/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "15", "link_map": {"/zh/docs/15/indexes-opclass.html": "/docs/15/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/15/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "279d85faac0ee7872cf18d2c95e0f31990151af2a65b0fceb5b06725f189621e", "content_hash": "0c337a0ede246faa8b13d57fe8edf77ddcddc4ee6169b53d470b088a69411e34", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=15", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=15", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=15", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=15", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=15", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=15", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=15", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/15/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "722b907f43f8178f67214192f7587c04c86bbab3759c44150d611dead287836f", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/15/indexes-opclass.html", "method": "same-major semantic node", "sha256": "99e792c28f2215316661a351044aa90cd191477d266005d4849696ce85bb89ed", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/15/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/15/facts/0/label": "Object kind", "/versions/15/facts/0/value": "Operator family", "/versions/15/facts/1/label": "Index AM", "/versions/15/tables/0/title": "Family operator strategies", "/versions/15/tables/1/title": "Family support functions", "/versions/15/tables/2/title": "Classes in this family", "/versions/15/related/0/label": "B-tree Index AM", "/versions/15/sections/0/title": "Operator classes and families", "/versions/15/tables/0/rows/0/scope": "Family member", "/versions/15/tables/0/rows/1/scope": "Family member", "/versions/15/tables/0/rows/2/scope": "Family member", "/versions/15/tables/0/rows/3/scope": "Family member", "/versions/15/tables/0/rows/4/scope": "Family member", "/versions/15/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/15/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/15/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/15/tables/0/rows/0/purpose": "search", "/versions/15/tables/0/rows/1/purpose": "search", "/versions/15/tables/0/rows/2/purpose": "search", "/versions/15/tables/0/rows/3/purpose": "search", "/versions/15/tables/0/rows/4/purpose": "search", "/versions/15/tables/2/rows/0/default": "yes", "/versions/15/tables/0/columns/0/label": "Operator overload", "/versions/15/tables/0/columns/1/label": "Strategy", "/versions/15/tables/0/columns/2/label": "Purpose", "/versions/15/tables/0/columns/3/label": "Ordering family", "/versions/15/tables/0/columns/4/label": "Membership scope", "/versions/15/tables/0/columns/5/label": "Source description", "/versions/15/tables/1/columns/0/label": "Support number", "/versions/15/tables/1/columns/1/label": "Left type", "/versions/15/tables/1/columns/2/label": "Right type", "/versions/15/tables/1/columns/3/label": "Function signature", "/versions/15/tables/1/columns/4/label": "Result type", "/versions/15/tables/2/columns/0/label": "Class", "/versions/15/tables/2/columns/1/label": "Input type", "/versions/15/tables/2/columns/2/label": "Key type", "/versions/15/tables/2/columns/3/label": "Default", "/versions/15/tables/2/rows/0/key_type": "Same as input type", "/versions/15/tables/0/rows/0/description": "less than", "/versions/15/tables/0/rows/1/description": "less than or equal", "/versions/15/tables/0/rows/2/description": "equal", "/versions/15/tables/0/rows/3/description": "greater than or equal", "/versions/15/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "dbd118ce3ba79a120f16e0c01c60a094ce60d3571d9cd2037ed0934f2908bd9b", "canonical_center_text_hash": "0c337a0ede246faa8b13d57fe8edf77ddcddc4ee6169b53d470b088a69411e34"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/15/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "16": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=16", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=16", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=16", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=16", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=16", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=16", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=16", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "16.15", "major": "16", "channel": "stable", "revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed", "source_sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed", "manual_fingerprint": "846fb006e9d590387203c1c65f671240bc5c30604c4e3084cf572817aacc19d0", "catalog_fingerprint": "70797d889dd8aeed77ae81092f99ab380e1109b54b0b7ca6fbf400e0a2111a70"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, {"url": "/docs/16/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 16 English manual: indexes-opclass.html", "sha256": "a524c924c56d14615e7ea68aaaddd7c62abf7d153a0e291c191e0f4e962ffbae"}, {"url": "/docs/16/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 16 English manual: catalog-pg-opfamily.html", "sha256": "71b9139e78f463b6d1146ecc748e9142aedb70d82e003d27b43e95d9b6108b9d"}, {"url": "/docs/16/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 16 English manual: catalog-pg-amop.html", "sha256": "f580ac4a34d5f9d567834684e0c41b7df32a952e20a2fc11a9ce0964c2df7e9a"}, {"url": "/docs/16/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 16 English manual: catalog-pg-amproc.html", "sha256": "ce78e17af3e627c9f4a1b517d77b8eb2e071ba2e963f8b196bf9535ca98c388a"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/16/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "995f7336b416c1d12be62a7bba561733a2c46a1cf7150e83016556887dbb439d", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b", "translated_from_revision": null}, "body_sha256": "756da40bb4c2ef8e624bad1937469121eeea4fd0713c35457b5c85938ea47965", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "16", "text_hash": "b0d0824e70c58d714f04c82392fe78823ad5d0fa1d24c2b85657f09789a26433", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=16", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=16", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=16", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=16", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=16", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=16", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/16/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "995f7336b416c1d12be62a7bba561733a2c46a1cf7150e83016556887dbb439d", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b", "translated_from_revision": null}, "body_sha256": "756da40bb4c2ef8e624bad1937469121eeea4fd0713c35457b5c85938ea47965", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/16/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "16", "link_map": {"/zh/docs/16/indexes-opclass.html": "/docs/16/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/16/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "2b46d4dbb9905b5cc59dfecbf02538e9aad4aa1ce8bc9ddbaadecc2aef8078ad", "content_hash": "b0d0824e70c58d714f04c82392fe78823ad5d0fa1d24c2b85657f09789a26433", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=16", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=16", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=16", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=16", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=16", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=16", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=16", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/16/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "704b1a6817cd451566b69b08f4210b2fb192934810322e22cb9a2980f7d93af4", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/16/indexes-opclass.html", "method": "same-major semantic node", "sha256": "da59bf9cb7d8a9ec0aeab1f5d3593429eec79ce6a1715eb47434832287159c3c", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/16/facts/0/label": 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">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/16/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "17": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=17", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=17", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=17", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=17", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=17", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=17", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=17", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "source_sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "manual_fingerprint": "b55870f8e80e1114a92ac7bfc97f4a6fa0dee8e75935895252bb6e5b866cf187", "catalog_fingerprint": "e888e3474202df1c60a8e7b6bf9f2d83b3866a52d119521659b7a82787d3829d"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, {"url": "/docs/17/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 17 English manual: indexes-opclass.html", "sha256": "dcdeb2d461b79e5c679d29f2a6d3ad038c788ba5a6d094e63d17353352db3ef2"}, {"url": "/docs/17/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 17 English manual: catalog-pg-opfamily.html", "sha256": "f7825b4e69f5073f44322085111577a0747a214b367c599e87491f75bc2a05ef"}, {"url": "/docs/17/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 17 English manual: catalog-pg-amop.html", "sha256": "19b2fb110b348860f7fbcb6e0e0544e341f5645113c23f50920a54434d432359"}, {"url": "/docs/17/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 17 English manual: catalog-pg-amproc.html", "sha256": "c1e9a6c78cb61e434eba6e22547c50a677d0c414049fd515263bec770b16ff55"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/17/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "17", "build_id": 105, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "75e451363348ab54434776b1f03440b4f11a01c89d6014709e3211b8ad70ba7f", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd", "translated_from_revision": null}, "body_sha256": "2708b28eb0802dbe6d340356effcd892d37b6792a90982cd562169d93099c206", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "17", "text_hash": "5410945affc89dcc26b0eae354e7bf6393432a238826ff91f72ff0e90b3a8228", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=17", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=17", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=17", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=17", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=17", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=17", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/17/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "17", "build_id": 105, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "75e451363348ab54434776b1f03440b4f11a01c89d6014709e3211b8ad70ba7f", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd", "translated_from_revision": null}, "body_sha256": "2708b28eb0802dbe6d340356effcd892d37b6792a90982cd562169d93099c206", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/17/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "17", "link_map": {"/zh/docs/17/indexes-opclass.html": "/docs/17/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/17/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "b5abae3e5a21f410ee12aa7bda82460a5a453e24699a90ef4264a948c66e38d7", "content_hash": "5410945affc89dcc26b0eae354e7bf6393432a238826ff91f72ff0e90b3a8228", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=17", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=17", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=17", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=17", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=17", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=17", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=17", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/17/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "79658772dd07ff10c4a4a472853e5a9bcba832796f5f9d2c0c77a87da769e5f6", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/17/indexes-opclass.html", "method": "same-major semantic node", "sha256": "66b33ea1fd240b6fae08ded914d718d50dfeba9d5be16dac835d0472b9cc9e4a", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/17/facts/0/label": "Object kind", "/versions/17/facts/0/value": "Operator family", "/versions/17/facts/1/label": "Index AM", "/versions/17/tables/0/title": "Family operator strategies", "/versions/17/tables/1/title": "Family support functions", "/versions/17/tables/2/title": "Classes in this family", "/versions/17/related/0/label": "B-tree Index AM", "/versions/17/sections/0/title": "Operator classes and families", "/versions/17/tables/0/rows/0/scope": "Family member", "/versions/17/tables/0/rows/1/scope": "Family member", "/versions/17/tables/0/rows/2/scope": "Family member", "/versions/17/tables/0/rows/3/scope": "Family member", "/versions/17/tables/0/rows/4/scope": "Family member", "/versions/17/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/17/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/17/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/17/tables/0/rows/0/purpose": "search", "/versions/17/tables/0/rows/1/purpose": "search", "/versions/17/tables/0/rows/2/purpose": "search", "/versions/17/tables/0/rows/3/purpose": "search", "/versions/17/tables/0/rows/4/purpose": "search", "/versions/17/tables/2/rows/0/default": "yes", "/versions/17/tables/0/columns/0/label": "Operator overload", "/versions/17/tables/0/columns/1/label": "Strategy", "/versions/17/tables/0/columns/2/label": "Purpose", "/versions/17/tables/0/columns/3/label": "Ordering family", "/versions/17/tables/0/columns/4/label": "Membership scope", "/versions/17/tables/0/columns/5/label": "Source description", "/versions/17/tables/1/columns/0/label": "Support number", "/versions/17/tables/1/columns/1/label": "Left type", "/versions/17/tables/1/columns/2/label": "Right type", "/versions/17/tables/1/columns/3/label": "Function signature", "/versions/17/tables/1/columns/4/label": "Result type", "/versions/17/tables/2/columns/0/label": "Class", "/versions/17/tables/2/columns/1/label": "Input type", "/versions/17/tables/2/columns/2/label": "Key type", "/versions/17/tables/2/columns/3/label": "Default", "/versions/17/tables/2/rows/0/key_type": "Same as input type", "/versions/17/tables/0/rows/0/description": "less than", "/versions/17/tables/0/rows/1/description": "less than or equal", "/versions/17/tables/0/rows/2/description": "equal", "/versions/17/tables/0/rows/3/description": "greater than or equal", "/versions/17/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "f7457f5703e8bd003f2628ba51bba1563c6c300b42d47238a39901530fe21aa9", "canonical_center_text_hash": "5410945affc89dcc26b0eae354e7bf6393432a238826ff91f72ff0e90b3a8228"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/17/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "18": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=18", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=18", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=18", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=18", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=18", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=18", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=18", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "manual_fingerprint": "fefce9e478eb2afe5e17e869492bbedc67dce23d317f0a5257240113d6496ebc", "catalog_fingerprint": "deec62e0f0c649d9d0d058ddd0b16bf41afffd569c3fd73949ff0971ce5cabd6"}, "sources": [{"url": 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"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 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COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "18", "text_hash": "541fbe17e9f4b9633342086801edd7d0e866c13f538a34cc2e4d4a192d0a19f2", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=18", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=18", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=18", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=18", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=18", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=18", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "cce6c9b1d4fbb418823aa7be2585facae45f45a5f75c43bd26170c1383c2a4b5", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "97022230dceff60e87dc57b1130bb5871deeafdde5ab01446d74d1eaa50449a4", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "18", "link_map": {"/zh/docs/18/indexes-opclass.html": "/docs/18/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/18/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "9ca8395646033088a2357efeaee21528dba78ef930ff788ebb11ba78d6a9b808", "content_hash": "541fbe17e9f4b9633342086801edd7d0e866c13f538a34cc2e4d4a192d0a19f2", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=18", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=18", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=18", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=18", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=18", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=18", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/18/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "c46185aa5f574dacd289a0b3876023793406b4cf58dee7eeebb86436d0577bdc", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/18/indexes-opclass.html", "method": "same-major semantic node", "sha256": "d2d3789266054f227a79e8de0e96355c10b20598c2958745751fea464d457f8d", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/18/facts/0/label": "Object kind", "/versions/18/facts/0/value": "Operator family", "/versions/18/facts/1/label": "Index AM", "/versions/18/tables/0/title": "Family operator strategies", "/versions/18/tables/1/title": "Family support functions", "/versions/18/tables/2/title": "Classes in this family", "/versions/18/related/0/label": "B-tree Index AM", "/versions/18/sections/0/title": "Operator classes and families", "/versions/18/tables/0/rows/0/scope": "Family member", "/versions/18/tables/0/rows/1/scope": "Family member", "/versions/18/tables/0/rows/2/scope": "Family member", "/versions/18/tables/0/rows/3/scope": "Family member", "/versions/18/tables/0/rows/4/scope": "Family member", "/versions/18/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/18/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/18/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/18/tables/0/rows/0/purpose": "search", "/versions/18/tables/0/rows/1/purpose": "search", "/versions/18/tables/0/rows/2/purpose": "search", "/versions/18/tables/0/rows/3/purpose": "search", "/versions/18/tables/0/rows/4/purpose": "search", "/versions/18/tables/2/rows/0/default": "yes", "/versions/18/tables/0/columns/0/label": "Operator overload", "/versions/18/tables/0/columns/1/label": "Strategy", "/versions/18/tables/0/columns/2/label": "Purpose", "/versions/18/tables/0/columns/3/label": "Ordering family", "/versions/18/tables/0/columns/4/label": "Membership scope", "/versions/18/tables/0/columns/5/label": "Source description", "/versions/18/tables/1/columns/0/label": "Support number", "/versions/18/tables/1/columns/1/label": "Left type", "/versions/18/tables/1/columns/2/label": "Right type", "/versions/18/tables/1/columns/3/label": "Function signature", "/versions/18/tables/1/columns/4/label": "Result type", "/versions/18/tables/2/columns/0/label": "Class", "/versions/18/tables/2/columns/1/label": "Input type", "/versions/18/tables/2/columns/2/label": "Key type", "/versions/18/tables/2/columns/3/label": "Default", "/versions/18/tables/2/rows/0/key_type": "Same as input type", "/versions/18/tables/0/rows/0/description": "less than", "/versions/18/tables/0/rows/1/description": "less than or equal", "/versions/18/tables/0/rows/2/description": "equal", "/versions/18/tables/0/rows/3/description": "greater than or equal", "/versions/18/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "78efd7a2adf0003d3c4bc06eefa48da9979db4a791ac32aed108ef3bc945a0c0", "canonical_center_text_hash": "541fbe17e9f4b9633342086801edd7d0e866c13f538a34cc2e4d4a192d0a19f2"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/18/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "center_zh_rendered": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/docs/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "19": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=19", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=19", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=19", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=19", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=19", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=19", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=19", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19rc1/postgresql-19rc1.tar.bz2", "label": "19rc1", "major": "19", "channel": "preview", "revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "source_sha256": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "manual_fingerprint": "63afc6091780ed5e52920ff9ef5adb6aa7dfcc82f8f413ed36ad46095788488d", "catalog_fingerprint": "da7a8a4e03b72cd120b91ffdff4265e065ccad9eab9964fc3eb1279a58464eb8"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v19rc1/postgresql-19rc1.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, {"url": "/docs/19/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 19 English manual: indexes-opclass.html", "sha256": "067b0ab52538156edc926c386cbdbd14038c2cf0b7da2333198643f531ca8fcf"}, {"url": "/docs/19/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 19 English manual: catalog-pg-opfamily.html", "sha256": "ad3b5d691bac66f3ea2068f7b58076634b4a61737a34c2484879f46554c880f7"}, {"url": "/docs/19/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 19 English manual: catalog-pg-amop.html", "sha256": "ff953e362a227387990b27226aff52dfd10f5f25b408d1bac8fa3e50bb45d00f"}, {"url": "/docs/19/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 19 English manual: catalog-pg-amproc.html", "sha256": "7a4705b9c5a0552c9232931179257747b96da8d195008bfc68304c53fc8be766"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/19/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "19", "build_id": 109, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "9efd572f75ebc4499f3c73a8a6442fe2177a8511456f4a8a4a85ae2ae05951de", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "760fb100941934c65a1ecdf378721832ef2e89b4f215e9d3e85e5958dfb8d881", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "19", "text_hash": "129bd3d2bba3deb42be8e87bcf6d212535cd2eecef88c85d6bcb948ad24d510e", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=19", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=19", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=19", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=19", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=19", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=19", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/19/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "19", "build_id": 109, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "9efd572f75ebc4499f3c73a8a6442fe2177a8511456f4a8a4a85ae2ae05951de", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "760fb100941934c65a1ecdf378721832ef2e89b4f215e9d3e85e5958dfb8d881", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/19/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "19", "link_map": {"/zh/docs/19/indexes-opclass.html": "/docs/19/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/19/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "5b33a2d0e76acfb660b5f3f2cb2728475fe8fca04acd5fa141ec06447b283608", "content_hash": "129bd3d2bba3deb42be8e87bcf6d212535cd2eecef88c85d6bcb948ad24d510e", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=19", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=19", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=19", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=19", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=19", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=19", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=19", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/19/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "8685135a1f22b71dfcd182e77ed97d14ceb21f011d1b58b2b168130423c68d5c", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/19/indexes-opclass.html", "method": "same-major semantic node", "sha256": "4b7641f1380b0a251d73741ec707584129005d66bc7a9e701ec660c45294044f", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/19/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/19/facts/0/label": "Object kind", "/versions/19/facts/0/value": "Operator family", "/versions/19/facts/1/label": "Index AM", "/versions/19/tables/0/title": "Family operator strategies", "/versions/19/tables/1/title": "Family support functions", "/versions/19/tables/2/title": "Classes in this family", "/versions/19/related/0/label": "B-tree Index AM", "/versions/19/sections/0/title": "Operator classes and families", "/versions/19/tables/0/rows/0/scope": "Family member", "/versions/19/tables/0/rows/1/scope": "Family member", "/versions/19/tables/0/rows/2/scope": "Family member", "/versions/19/tables/0/rows/3/scope": "Family member", "/versions/19/tables/0/rows/4/scope": "Family member", "/versions/19/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/19/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/19/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/19/tables/0/rows/0/purpose": "search", "/versions/19/tables/0/rows/1/purpose": "search", "/versions/19/tables/0/rows/2/purpose": "search", "/versions/19/tables/0/rows/3/purpose": "search", "/versions/19/tables/0/rows/4/purpose": "search", "/versions/19/tables/2/rows/0/default": "yes", "/versions/19/tables/0/columns/0/label": "Operator overload", "/versions/19/tables/0/columns/1/label": "Strategy", "/versions/19/tables/0/columns/2/label": "Purpose", "/versions/19/tables/0/columns/3/label": "Ordering family", "/versions/19/tables/0/columns/4/label": "Membership scope", "/versions/19/tables/0/columns/5/label": "Source description", "/versions/19/tables/1/columns/0/label": "Support number", "/versions/19/tables/1/columns/1/label": "Left type", "/versions/19/tables/1/columns/2/label": "Right type", "/versions/19/tables/1/columns/3/label": "Function signature", "/versions/19/tables/1/columns/4/label": "Result type", "/versions/19/tables/2/columns/0/label": "Class", "/versions/19/tables/2/columns/1/label": "Input type", "/versions/19/tables/2/columns/2/label": "Key type", "/versions/19/tables/2/columns/3/label": "Default", "/versions/19/tables/2/rows/0/key_type": "Same as input type", "/versions/19/tables/0/rows/0/description": "less than", "/versions/19/tables/0/rows/1/description": "less than or equal", "/versions/19/tables/0/rows/2/description": "equal", "/versions/19/tables/0/rows/3/description": "greater than or equal", "/versions/19/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "104f2c9bb61e81ddd1b0e819a2af2dcef7183dc82d0fb3f9f7427046ff3270bd", "canonical_center_text_hash": "129bd3d2bba3deb42be8e87bcf6d212535cd2eecef88c85d6bcb948ad24d510e"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/19/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "source_revalidation": {"kind": "static-same-version-source-and-manual-replay", "audit": "wiki-audit-20261023", "runtime_rerun": false, "compared_fields": "entity membership and source-derived facts; presentation markup normalized", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "previous_source_revision": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86"}}, "20": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=20", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=20", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=20", "text": "=(macaddr,macaddr)"}, "strategy": "3", 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\u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/devel/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "20", "link_map": {"/zh/docs/devel/indexes-opclass.html": "/docs/devel/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/devel/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "9b5194ba7be73ca55fe321c9856b6b7a2580892a7cac9dd61a20089934c23fd9", "content_hash": "90bb2e9c1cf430a6a1f8dcae28f8c7fcc96341d49adefb61d370616323d79821", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=20", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=20", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=20", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=20", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=20", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=20", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=20", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/devel/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "e899b3d8b206f52e8dc0ac4b6019e55022abcf901a9d6cf93edf588bc4354664", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/devel/indexes-opclass.html", "method": "same-major semantic node", "sha256": "166b0550fdb1c3e8c1fbd979c5e41c060ed4cfcdc2d6ba4733ec27d22f45a62d", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/summary": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/category": "B-tree families", "/versions/20/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/20/facts/0/label": "Object kind", "/versions/20/facts/0/value": "Operator family", "/versions/20/facts/1/label": "Index AM", "/versions/20/tables/0/title": "Family operator strategies", "/versions/20/tables/1/title": "Family support functions", "/versions/20/tables/2/title": "Classes in this family", "/versions/20/related/0/label": "B-tree Index AM", "/versions/20/sections/0/title": "Operator classes and families", "/versions/20/tables/0/rows/0/scope": "Family member", "/versions/20/tables/0/rows/1/scope": "Family member", "/versions/20/tables/0/rows/2/scope": "Family member", "/versions/20/tables/0/rows/3/scope": "Family member", "/versions/20/tables/0/rows/4/scope": "Family member", "/versions/20/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/20/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/20/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/20/tables/0/rows/0/purpose": "search", "/versions/20/tables/0/rows/1/purpose": "search", "/versions/20/tables/0/rows/2/purpose": "search", "/versions/20/tables/0/rows/3/purpose": "search", "/versions/20/tables/0/rows/4/purpose": "search", "/versions/20/tables/2/rows/0/default": "yes", "/versions/20/tables/0/columns/0/label": "Operator overload", "/versions/20/tables/0/columns/1/label": "Strategy", "/versions/20/tables/0/columns/2/label": "Purpose", "/versions/20/tables/0/columns/3/label": "Ordering family", "/versions/20/tables/0/columns/4/label": "Membership scope", "/versions/20/tables/0/columns/5/label": "Source description", "/versions/20/tables/1/columns/0/label": "Support number", "/versions/20/tables/1/columns/1/label": "Left type", "/versions/20/tables/1/columns/2/label": "Right type", "/versions/20/tables/1/columns/3/label": "Function signature", "/versions/20/tables/1/columns/4/label": "Result type", "/versions/20/tables/2/columns/0/label": "Class", "/versions/20/tables/2/columns/1/label": "Input type", "/versions/20/tables/2/columns/2/label": "Key type", "/versions/20/tables/2/columns/3/label": "Default", "/versions/20/tables/2/rows/0/key_type": "Same as input type", "/versions/20/tables/0/rows/0/description": "less than", "/versions/20/tables/0/rows/1/description": "less than or equal", "/versions/20/tables/0/rows/2/description": "equal", "/versions/20/tables/0/rows/3/description": "greater than or equal", "/versions/20/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "56a92af9e8e732225ac96e42e4f30e7f27dbd3d65ba65d3048831a992ee55f68", "canonical_center_text_hash": "90bb2e9c1cf430a6a1f8dcae28f8c7fcc96341d49adefb61d370616323d79821"}, "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr"}], "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/devel/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "source_revalidation": {"kind": "static-same-version-source-and-manual-replay", "audit": "wiki-audit-20261023", "runtime_rerun": false, "compared_fields": "entity membership and source-derived facts; presentation markup normalized", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "previous_source_revision": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41"}}}}, "snapshot": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "macaddr_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=18", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=18", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=18", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=18", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=18", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=18", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "aliases": ["macaddr_ops", "btree/macaddr_ops"], "classes": [{"name": "macaddr_ops", "slug": "class-btree-macaddr_ops", "family": "macaddr_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "macaddr", "source_oid": "", "family_slug": "family-btree-macaddr_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=18", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "manual_fingerprint": "fefce9e478eb2afe5e17e869492bbedc67dce23d317f0a5257240113d6496ebc", "catalog_fingerprint": "deec62e0f0c649d9d0d058ddd0b16bf41afffd569c3fd73949ff0971ce5cabd6"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, {"url": "/docs/18/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 18 English manual: indexes-opclass.html", "sha256": "07de06abf3a2aff2a891a2789def434d9b76705e54d45ca5338dc13451ae2962"}, {"url": "/docs/18/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 18 English manual: catalog-pg-opfamily.html", "sha256": "d4a2b7c2bcb5350b0c1f0111b61e4566f46fd97f48802d3ced2421a7aea60b80"}, {"url": "/docs/18/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 18 English manual: catalog-pg-amop.html", "sha256": "e65b90ee78eaf4b4da97ce5b08b972cee2e2660b882ec107be22eca47201f7d1"}, {"url": "/docs/18/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 18 English manual: catalog-pg-amproc.html", "sha256": "0a09afbde0ba8da9899bf770b86d8301bee116057b16ebe7db0e4a7fca2e91c6"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "cce6c9b1d4fbb418823aa7be2585facae45f45a5f75c43bd26170c1383c2a4b5", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "97022230dceff60e87dc57b1130bb5871deeafdde5ab01446d74d1eaa50449a4", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/macaddr_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-macaddr_ops", "locale": "zh-Hans", "version": "18", "text_hash": "541fbe17e9f4b9633342086801edd7d0e866c13f538a34cc2e4d4a192d0a19f2", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=18", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=18", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=18", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=18", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=18", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=18", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "cce6c9b1d4fbb418823aa7be2585facae45f45a5f75c43bd26170c1383c2a4b5", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "97022230dceff60e87dc57b1130bb5871deeafdde5ab01446d74d1eaa50449a4", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "description_zh": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "version": "18", "link_map": {"/zh/docs/18/indexes-opclass.html": "/docs/18/indexes-opclass.html"}, "body_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/18/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "9ca8395646033088a2357efeaee21528dba78ef930ff788ebb11ba78d6a9b808", "content_hash": "541fbe17e9f4b9633342086801edd7d0e866c13f538a34cc2e4d4a192d0a19f2", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<(macaddr,macaddr)", "strategy": "1", "left_type": "macaddr", "right_type": "macaddr", "description": "less than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "<=(macaddr,macaddr)", "strategy": "2", "left_type": "macaddr", "right_type": "macaddr", "description": "less than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": "=(macaddr,macaddr)", "strategy": "3", "left_type": "macaddr", "right_type": "macaddr", "description": "equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than or equal", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-macaddr-macaddr", "sort_family_slug": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "description": "greater than", "family_slug": "family-btree-macaddr_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-macaddr-macaddr", "sort_family_slug": ""}], "signature": "btree/macaddr_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-macaddr-macaddr/?v=18", "text": "<(macaddr,macaddr)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-macaddr-macaddr/?v=18", "text": "<=(macaddr,macaddr)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-macaddr-macaddr/?v=18", "text": "=(macaddr,macaddr)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-macaddr-macaddr/?v=18", "text": ">=(macaddr,macaddr)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-macaddr-macaddr/?v=18", "text": ">(macaddr,macaddr)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": "\u5bb6\u65cf\u4e2d\u7684\u64cd\u4f5c\u7b26\u7b56\u7565", "columns": [{"key": "operator", "label": "\u64cd\u4f5c\u7b26\u91cd\u8f7d"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}, {"key": "scope", "label": "\u6210\u5458\u8303\u56f4"}, {"key": "description", "label": "\u6e90\u7801\u8bf4\u660e"}]}, {"key": "support-functions", "rows": [{"number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "int4"}, {"number": "2", "function": "macaddr_sortsupport(internal)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "right_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-macaddr_ops/?v=18", "text": "macaddr_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/macaddr/?v=18", "text": "macaddr"}}], "title": "\u672c\u5bb6\u65cf\u7684\u64cd\u4f5c\u7b26\u7c7b", "columns": [{"key": "class", "label": "\u64cd\u4f5c\u7b26\u7c7b"}, {"key": "input_type", "label": "\u8f93\u5165\u7c7b\u578b"}, {"key": "key_type", "label": "\u952e\u7c7b\u578b"}, {"key": "default", "label": "\u9ed8\u8ba4\u503c"}]}], "source_oid": "1984", "description": ["macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/18/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "c46185aa5f574dacd289a0b3876023793406b4cf58dee7eeebb86436d0577bdc", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/18/indexes-opclass.html", "method": "same-major semantic node", "sha256": "d2d3789266054f227a79e8de0e96355c10b20598c2958745751fea464d457f8d", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/18/facts/0/label": 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">=(macaddr,macaddr)", "strategy": "4", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}, {"family": "macaddr_ops", "method": "btree", "purpose": "search", "operator": ">(macaddr,macaddr)", "strategy": "5", "left_type": "macaddr", "right_type": "macaddr", "sort_family": ""}], "attributes": {"name": "macaddr_ops", "method": "btree"}, "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "result_type": "bool"}]}, "comparison_hash": "406db794542151b1660d8157a6865c5a2e59b5da055030c0d41b7b856b9b0046", "manual_language": "zh", "support_functions": [{"family": "macaddr_ops", "method": "btree", "number": "1", "function": "macaddr_cmp(macaddr,macaddr)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "int4"}, {"family": "macaddr_ops", "method": "btree", "number": "2", "function": "macaddr_sortsupport(internal)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "void"}, {"family": "macaddr_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "macaddr", "right_type": "macaddr", "family_slug": "family-btree-macaddr_ops", "result_type": "bool"}], "description_zh_html": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/18/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "center_zh_rendered": "<p>macaddr_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>macaddr_ops</code></dd><dt>\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5</dt><dd><code>btree</code></dd></dl><h3>\u7b56\u7565\u8fd0\u7b97\u7b26</h3><table><thead><tr><th>\u7b56\u7565\u7f16\u53f7</th><th>\u7528\u9014</th><th>\u8fd0\u7b97\u7b26</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u6392\u5e8f\u8fd0\u7b97\u7b26\u65cf</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code></code></td></tr></tbody></table><h3>\u652f\u6301\u51fd\u6570</h3><table><thead><tr><th>\u652f\u6301\u51fd\u6570\u7f16\u53f7</th><th>\u5b9e\u73b0\u51fd\u6570</th><th>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</th><th>\u7ed3\u679c\u7c7b\u578b</th></tr></thead><tbody><tr><td><code>1</code></td><td><code>macaddr_cmp(macaddr,macaddr)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>macaddr_sortsupport(internal)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>macaddr</code></td><td><code>macaddr</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/docs/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "comparison": {"left": "12", "right": "13", "status": "changed", "diff": "--- PostgreSQL 12\n+++ PostgreSQL 13\n@@ -84,6 +84,15 @@\n       \"number\": \"2\",\n       \"result_type\": \"void\",\n       \"right_type\": \"macaddr\"\n+    },\n+    {\n+      \"family\": \"macaddr_ops\",\n+      \"function\": \"btequalimage(oid)\",\n+      \"left_type\": \"macaddr\",\n+      \"method\": \"btree\",\n+      \"number\": \"4\",\n+      \"result_type\": \"bool\",\n+      \"right_type\": \"macaddr\"\n     }\n   ]\n }"}}