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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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "88774431f2c3f57a49b81d93816072a754311138448c48640bbe2acf1004c1ad", "content_hash": "437135d008ac31cc02cce2f41ee7138955dfbd98e060d03620c67bf27a0619c9", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=10", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=10", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=10", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=10", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=10", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=10", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=10", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=10", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=10", "text": "anyrange"}}], "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": "3901", "description": ["range_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 1 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": "547029e4c79d826c852faacec4858d066473dc65d3d45f7e2c6a65814427dbae", "canonical_center_text_hash": "437135d008ac31cc02cce2f41ee7138955dfbd98e060d03620c67bf27a0619c9"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=11", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=11", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=11", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=11", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=11", "text": ">(anyrange,anyrange)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": 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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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "429a79b5ecb62d73f30ffaf158cf08d1d0c6a33403846605e8fee1b1af1080d9", "content_hash": "0522ea2bac60af74013d52e5036720668e9f555db4312cc5b36fb54dd12782ed", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=11", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=11", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=11", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=11", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=11", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=11", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=11", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=11", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=11", "text": "anyrange"}}], "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": "3901", "description": ["range_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 1 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": "12235197ea6b9d7459d311f3fd56e5ced74d7965abc9335c10f92bb0141acaa3", "canonical_center_text_hash": "0522ea2bac60af74013d52e5036720668e9f555db4312cc5b36fb54dd12782ed"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=12", 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"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": "8340eab34082c778c7f38ab0477c59479c85ae455ef3d3995e0bc1a8cc87b274", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "5753fbdc9566bf12d0698eeaafa70b0525e5b71c1c27ee2aec505f572aa595dc", "content_hash": "3ab1613af641bc25e46bb592706915e4ff4610a0aae180845b2293db7d8f1cd4", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=12", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": 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">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=13", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=13", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=13", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=13", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=13", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=13", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}}], "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": ["range_ops", "btree/range_ops"], "classes": [{"name": "range_ops", "slug": "class-btree-range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange", "source_oid": "", "family_slug": "family-btree-range_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": "93e741119d8b5fc013682c99ce44aa8e10171d3d96d1281ef7122b2acc015bc4", "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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "13", "text_hash": "7fe3d24818f671a2bf4a4b6df7be2c2a5ed89b33f30c9dc4693b654d51ae820a", "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-anyrange-anyrange/?v=13", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=13", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=13", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=13", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": 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"\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-range_ops/?v=13", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}}], "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": "93e741119d8b5fc013682c99ce44aa8e10171d3d96d1281ef7122b2acc015bc4", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "c052ded68d63bf5cdf5e60bd203605d66615af5d0f289ed1f257e824ffbf57f2", "content_hash": "7fe3d24818f671a2bf4a4b6df7be2c2a5ed89b33f30c9dc4693b654d51ae820a", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=13", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=13", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=13", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=13", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=13", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=13", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=13", "text": "anyrange"}}], "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": "3901", "description": ["range_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 1 support functions in this source build.", "/versions/13/facts/0/label": 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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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">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=14", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=14", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=14", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=14", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=14", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=14", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}}], "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": ["range_ops", "btree/range_ops"], "classes": [{"name": "range_ops", "slug": "class-btree-range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange", "source_oid": "", "family_slug": "family-btree-range_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=14", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "14.24", "major": "14", "channel": "stable", "revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897", "source_sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897", "manual_fingerprint": "1d055c6dc55d4defe2b6e9d0f842a47005487b21025b67e51d06721d3c122f71", "catalog_fingerprint": "9e0116f26e5ce870719efb77ef7b73e30c7928f8af27cbe87fdea32efe3811ef"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, {"url": "/docs/14/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 14 English manual: indexes-opclass.html", "sha256": "b7e355fb7c1e6fe473dc70d4c7e73cd3aa9a11dddd2e32ece5e8effbdb910c0b"}, {"url": "/docs/14/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 14 English manual: catalog-pg-opfamily.html", "sha256": "8a0b55015a6e8f90326f0526570b3bbca00a06a3c1ca142b8324528b60112c4f"}, {"url": "/docs/14/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 14 English manual: catalog-pg-amop.html", "sha256": "402b87d7fb1a313b096ba5349a676ae38d507e2eb98739d6ed7f0681e0b9a9a4"}, {"url": "/docs/14/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 14 English manual: catalog-pg-amproc.html", "sha256": "5b918a7eba7592dc13a32a8fcbb7ca0a198d8f4d2b8a85b3c7befbc7705d44a1"}], "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": "442e6d3b23b9eb720df40412e7495f78f56d7fae3bd7dcbdc4b57549291c7d17", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "14", "text_hash": "1b6f2815afaa602e554a0656f003fd5ef68bf243b334cf0c199a3e24246b153f", "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-anyrange-anyrange/?v=14", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=14", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=14", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=14", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=14", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=14", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}}], "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": "442e6d3b23b9eb720df40412e7495f78f56d7fae3bd7dcbdc4b57549291c7d17", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "2b3cd462b1aa0702dd5a6275804453b00a217d61a8daf272741de83abaa914ed", "content_hash": "1b6f2815afaa602e554a0656f003fd5ef68bf243b334cf0c199a3e24246b153f", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", 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"purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=14", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=14", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=14", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=14", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=14", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=14", "text": "anyrange"}, "result_type": "int4"}], "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", 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"\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"]}], "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 1 support functions in this source build.", "/versions/14/facts/0/label": 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">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=15", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=15", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=15", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=15", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=15", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=15", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}}], "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": ["range_ops", "btree/range_ops"], "classes": [{"name": "range_ops", "slug": "class-btree-range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange", "source_oid": "", "family_slug": "family-btree-range_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=15", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "label": "15.19", "major": "15", "channel": "stable", "revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89", "source_sha256": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89", "manual_fingerprint": "f39c61e9facb5b9404c7d6d1cf494d83af0cc46146554a7fc40724eb882d24a9", "catalog_fingerprint": "1c332a5ccec7bfdd8ca19b55a0279b5bd6cb1dd5dcc6c5587a98a491a9b566a5"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, {"url": "/docs/15/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 15 English manual: indexes-opclass.html", "sha256": "57685c0a60cb570754be680551a6947556a03b6ff16a4a511483bdcac143c6da"}, {"url": 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"5b72836e9b884335c4bec570b7b91e0389688f21b43f97a096ce39dbc50fcd50", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:6bce1a2df9170cb1146a1411c5547190856638221a6539e618ee1016c9f493ad", "translated_from_revision": null}, "body_sha256": "82bac028bd0e673141f5892351e9b17ef6d5a2331e46c89884c139e076d4f514", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "15", "text_hash": "0d4c945b94eef1778fcb79310a806fd485f9434863c4a2f8b906be09e2e3edde", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "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-anyrange-anyrange/?v=15", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=15", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=15", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=15", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=15", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=15", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}}], "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/15/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "15", "build_id": 101, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "5b72836e9b884335c4bec570b7b91e0389688f21b43f97a096ce39dbc50fcd50", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:6bce1a2df9170cb1146a1411c5547190856638221a6539e618ee1016c9f493ad", "translated_from_revision": null}, "body_sha256": "82bac028bd0e673141f5892351e9b17ef6d5a2331e46c89884c139e076d4f514", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "6b1b9c258037ed8795f0f081dc75b59c5c847b40caca42b8263ae9cb011e6bc3", "content_hash": "0d4c945b94eef1778fcb79310a806fd485f9434863c4a2f8b906be09e2e3edde", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=15", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=15", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=15", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=15", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=15", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=15", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=15", "text": "anyrange"}}], "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": "3901", "description": ["range_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 1 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": "b12d0f94130648b321915b61f3d53b91f2229f986e00a9b0e72682df8002451d", "canonical_center_text_hash": "0d4c945b94eef1778fcb79310a806fd485f9434863c4a2f8b906be09e2e3edde"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=16", 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"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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}, "result_type": "int4"}], "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"}, 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["\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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "16", "text_hash": "8d1e384ef3844ce73b334d190a85718c3f452ffc2122fd7d90d03f4308d3acc5", "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-anyrange-anyrange/?v=16", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=16", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=16", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=16", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=16", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=16", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}}], "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": "32fd71eff41b79f0e5291b1ce31cb1c8858f91747ebf4006e11f6317bdc95c8e", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "2a3f30c7fc5b363238daa73385fdb2232191a5da896f0c0fab095abdb3ca6324", "content_hash": "8d1e384ef3844ce73b334d190a85718c3f452ffc2122fd7d90d03f4308d3acc5", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=16", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=16", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=16", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=16", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=16", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=16", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=16", "text": "anyrange"}}], "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": "3901", "description": ["range_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 1 support functions in this source build.", "/versions/16/facts/0/label": "Object kind", "/versions/16/facts/0/value": "Operator family", "/versions/16/facts/1/label": "Index AM", "/versions/16/tables/0/title": "Family operator strategies", "/versions/16/tables/1/title": "Family support functions", "/versions/16/tables/2/title": "Classes in this family", "/versions/16/related/0/label": "B-tree Index AM", "/versions/16/sections/0/title": "Operator classes and families", "/versions/16/tables/0/rows/0/scope": "Family member", "/versions/16/tables/0/rows/1/scope": "Family member", "/versions/16/tables/0/rows/2/scope": "Family member", "/versions/16/tables/0/rows/3/scope": "Family member", "/versions/16/tables/0/rows/4/scope": "Family member", "/versions/16/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/16/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/16/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/16/tables/0/rows/0/purpose": "search", "/versions/16/tables/0/rows/1/purpose": "search", "/versions/16/tables/0/rows/2/purpose": "search", "/versions/16/tables/0/rows/3/purpose": "search", "/versions/16/tables/0/rows/4/purpose": "search", "/versions/16/tables/2/rows/0/default": "yes", "/versions/16/tables/0/columns/0/label": "Operator overload", "/versions/16/tables/0/columns/1/label": "Strategy", "/versions/16/tables/0/columns/2/label": "Purpose", "/versions/16/tables/0/columns/3/label": "Ordering family", "/versions/16/tables/0/columns/4/label": "Membership scope", "/versions/16/tables/0/columns/5/label": "Source description", "/versions/16/tables/1/columns/0/label": "Support number", "/versions/16/tables/1/columns/1/label": "Left type", "/versions/16/tables/1/columns/2/label": "Right type", "/versions/16/tables/1/columns/3/label": "Function signature", "/versions/16/tables/1/columns/4/label": "Result type", "/versions/16/tables/2/columns/0/label": "Class", "/versions/16/tables/2/columns/1/label": "Input type", "/versions/16/tables/2/columns/2/label": "Key type", "/versions/16/tables/2/columns/3/label": "Default", "/versions/16/tables/2/rows/0/key_type": "Same as input type", "/versions/16/tables/0/rows/0/description": "less than", "/versions/16/tables/0/rows/1/description": "less than or equal", "/versions/16/tables/0/rows/2/description": "equal", "/versions/16/tables/0/rows/3/description": "greater than or equal", "/versions/16/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "3b15eb08dcbac15c015bbc9e912b4f8c594ac1e7a4f7078fc79aa9d7aeff4e96", "canonical_center_text_hash": "8d1e384ef3844ce73b334d190a85718c3f452ffc2122fd7d90d03f4308d3acc5"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=17", 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"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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}, "result_type": "int4"}], "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"}, 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["\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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "17", "text_hash": "dac6b42e426180f8c85148d3a1c66cf6165c41395d3ddbc69ceca2e12d6ce0e7", "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-anyrange-anyrange/?v=17", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=17", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=17", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=17", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=17", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=17", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}}], "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": "0106625efe168534bbc8d029084b7dfe1a3f8181237573e3ce544c6daf82b538", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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": "740e4c323f5e6f1ab57f964dd30b55322dea463efa7a7690a86662b9940be6d8", "content_hash": "dac6b42e426180f8c85148d3a1c66cf6165c41395d3ddbc69ceca2e12d6ce0e7", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=17", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=17", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=17", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=17", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=17", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}, "result_type": "int4"}], "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-range_ops/?v=17", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=17", "text": "anyrange"}}], "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": "3901", "description": ["range_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 1 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": "3bc224d8ca29f4add602624a28421a62dca436cde8132187da3a452ccb395cb9", "canonical_center_text_hash": "dac6b42e426180f8c85148d3a1c66cf6165c41395d3ddbc69ceca2e12d6ce0e7"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}]}, "comparison_hash": "a200d4e0d2e73873dee31c74bf6d5d7423f7d8912e06778e244b3a3620b4f236", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</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> 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<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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=18", 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"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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "18", "text_hash": "a2a238c8ab8debb143c9b641407b3d7027365d406b96b2dbbc3957eed3cc9164", "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-anyrange-anyrange/?v=18", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=18", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=18", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=18", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=18", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "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-range_ops/?v=18", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}}], "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": "32cef7e0e1796016ec311fdfd8a8486e49b097b669027c5a4d38041628d8bbd6", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/18/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "bbc49264ab1ebeb148ced10afeae4da335d09ff76e1f8e05c4f396b000213b07", "content_hash": "a2a238c8ab8debb143c9b641407b3d7027365d406b96b2dbbc3957eed3cc9164", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=18", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=18", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=18", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=18", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=18", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "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-range_ops/?v=18", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}}], "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": "3901", "description": ["range_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 2 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": "8b2594f62be5e5b449b62a39fe0b5de7557fa514f7456ff4b8cee6f87b1deb4f", "canonical_center_text_hash": "a2a238c8ab8debb143c9b641407b3d7027365d406b96b2dbbc3957eed3cc9164"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "void"}]}, "comparison_hash": "1c49ceceb40599f3505ed30eaf6f3f3df85b90f85bb63be02622470f27ee35f7", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "void"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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=\"/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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=19", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=19", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=19", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=19", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=19", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "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-range_ops/?v=19", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}}], "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": ["range_ops", "btree/range_ops"], "classes": [{"name": "range_ops", "slug": "class-btree-range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange", "source_oid": "", "family_slug": "family-btree-range_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": "f5e25e65e1830ddd5b5348d96cd972248a7744ba9373b53d6431a015b7dc26f2", "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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "19", "text_hash": "14e74ce5016f49b40f4a15e0cce938a505fad89b23b8e0717b709e071f7acd75", "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-anyrange-anyrange/?v=19", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=19", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=19", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=19", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=19", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "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-range_ops/?v=19", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}}], "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": "f5e25e65e1830ddd5b5348d96cd972248a7744ba9373b53d6431a015b7dc26f2", "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/19/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/19/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "e73af3f3dc9bad33207d5fd6df8038e6e8521d8318dfc761482fb86aa3be31d4", "content_hash": "14e74ce5016f49b40f4a15e0cce938a505fad89b23b8e0717b709e071f7acd75", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=19", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=19", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=19", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=19", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=19", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}, "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-range_ops/?v=19", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=19", "text": "anyrange"}}], "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": "3901", "description": ["range_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 2 support functions in this source build.", "/versions/19/facts/0/label": 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"/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": "f4033cd6565d91dab4faebb7ae07f8bdf718f370a3411292f83199cc5656b19f", "canonical_center_text_hash": 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">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "void"}]}, "comparison_hash": "1c49ceceb40599f3505ed30eaf6f3f3df85b90f85bb63be02622470f27ee35f7", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "void"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=20", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=20", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=20", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=20", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=20", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "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-range_ops/?v=20", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}}], "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": ["range_ops", "btree/range_ops"], "classes": [{"name": "range_ops", "slug": "class-btree-range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange", "source_oid": "", "family_slug": "family-btree-range_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=20", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "20devel", "major": "20", "channel": "devel", "revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "source_sha256": 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"label": "PostgreSQL 20 English manual: catalog-pg-amop.html", "sha256": "21308426099a60febe495b5e6edd040a5b0f7cb87269121a33549a930433d19f"}, {"url": "/docs/devel/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 20 English manual: catalog-pg-amproc.html", "sha256": "4e33c91349b72e274384010c3e265fdb6a18554f81257b4b24dffc114136c3ee"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/devel/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "81b38d06f59275055ef9cbe975ce20d1d1bec73ae47a5d4b395b209aede5ea80", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "212875b9a80c652159773e7015c9a8ae960b115bb287cc762939f55a4ecc2c00", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "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/range_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-range_ops", "locale": "zh-Hans", "version": "20", "text_hash": "0311a210892808c5fb83a2574dd40afda3fc269fa9bca50ec8ec2e36c75a02eb", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "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-anyrange-anyrange/?v=20", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=20", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=20", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=20", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=20", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "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-range_ops/?v=20", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}}], "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/devel/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "81b38d06f59275055ef9cbe975ce20d1d1bec73ae47a5d4b395b209aede5ea80", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "212875b9a80c652159773e7015c9a8ae960b115bb287cc762939f55a4ecc2c00", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/devel/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/devel/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "c88d1ea8d037c0335383db08280b14f9d256d488c084470ae4bb8ff26154e8bc", "content_hash": "0311a210892808c5fb83a2574dd40afda3fc269fa9bca50ec8ec2e36c75a02eb", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=20", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=20", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=20", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=20", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=20", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}, "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-range_ops/?v=20", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=20", "text": "anyrange"}}], "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": "3901", "description": ["range_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 2 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 2 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": "b3a0739fe5112c239203bdd1207dcf362d57a58d8ff7d36cf3303bd935772906", "canonical_center_text_hash": "0311a210892808c5fb83a2574dd40afda3fc269fa9bca50ec8ec2e36c75a02eb"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "void"}]}, "comparison_hash": "1c49ceceb40599f3505ed30eaf6f3f3df85b90f85bb63be02622470f27ee35f7", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "void"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/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": "range_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=18", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=18", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=18", "text": "=(anyrange,anyrange)"}, 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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": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "range_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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/18/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "bbc49264ab1ebeb148ced10afeae4da335d09ff76e1f8e05c4f396b000213b07", "content_hash": "a2a238c8ab8debb143c9b641407b3d7027365d406b96b2dbbc3957eed3cc9164", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "description": "less than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "description": "less than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "description": "equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than or equal", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-anyrange-anyrange", "sort_family_slug": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "description": "greater than", "family_slug": "family-btree-range_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-anyrange-anyrange", "sort_family_slug": ""}], "signature": "btree/range_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-anyrange-anyrange/?v=18", "text": "<(anyrange,anyrange)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-anyrange-anyrange/?v=18", "text": "<=(anyrange,anyrange)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-anyrange-anyrange/?v=18", "text": "=(anyrange,anyrange)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-anyrange-anyrange/?v=18", "text": ">=(anyrange,anyrange)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-anyrange-anyrange/?v=18", "text": ">(anyrange,anyrange)"}, "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": "range_cmp(anyrange,anyrange)", "left_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "result_type": "int4"}, {"number": "2", "function": "range_sortsupport(internal)", "left_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "right_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}, "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-range_ops/?v=18", "text": "range_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/anyrange/?v=18", "text": "anyrange"}}], "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": "3901", "description": ["range_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 2 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": "8b2594f62be5e5b449b62a39fe0b5de7557fa514f7456ff4b8cee6f87b1deb4f", "canonical_center_text_hash": "a2a238c8ab8debb143c9b641407b3d7027365d406b96b2dbbc3957eed3cc9164"}, "description_zh": "range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "range_ops", "family": "range_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "anyrange"}], "operators": [{"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<(anyrange,anyrange)", "strategy": "1", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "<=(anyrange,anyrange)", "strategy": "2", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": "=(anyrange,anyrange)", "strategy": "3", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">=(anyrange,anyrange)", "strategy": "4", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}, {"family": "range_ops", "method": "btree", "purpose": "search", "operator": ">(anyrange,anyrange)", "strategy": "5", "left_type": "anyrange", "right_type": "anyrange", "sort_family": ""}], "attributes": {"name": "range_ops", "method": "btree"}, "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "result_type": "void"}]}, "comparison_hash": "1c49ceceb40599f3505ed30eaf6f3f3df85b90f85bb63be02622470f27ee35f7", "manual_language": "zh", "support_functions": [{"family": "range_ops", "method": "btree", "number": "1", "function": "range_cmp(anyrange,anyrange)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "int4"}, {"family": "range_ops", "method": "btree", "number": "2", "function": "range_sortsupport(internal)", "left_type": "anyrange", "right_type": "anyrange", "family_slug": "family-btree-range_ops", "result_type": "void"}], "description_zh_html": "<p>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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/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>range_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>range_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;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</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>range_cmp(anyrange,anyrange)</code></td><td><code>anyrange</code></td><td><code>anyrange</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>range_sortsupport(internal)</code></td><td><code>anyrange</code></td><td><code>anyrange</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=\"/docs/18/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "comparison": {"left": "17", "right": "18", "status": "changed", "diff": "--- PostgreSQL 17\n+++ PostgreSQL 18\n@@ -75,6 +75,15 @@\n       \"number\": \"1\",\n       \"result_type\": \"int4\",\n       \"right_type\": \"anyrange\"\n+    },\n+    {\n+      \"family\": \"range_ops\",\n+      \"function\": \"range_sortsupport(internal)\",\n+      \"left_type\": \"anyrange\",\n+      \"method\": \"btree\",\n+      \"number\": \"2\",\n+      \"result_type\": \"void\",\n+      \"right_type\": \"anyrange\"\n     }\n   ]\n }"}}