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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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002</p><p>\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a<code class=\"type\">int4</code>\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a<code class=\"literal\">COLLATE</code>\uff0c<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code>\uff09\u3002\n  </p><p>   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/10/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002</p><p>\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b <code>int4</code> \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a<code>int4</code>\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a<code>COLLATE</code>\uff0c<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code>\uff09\u3002\n  </p><p>   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/10/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "c499eb8055614d6902f140ddf18361176dd4d18e602c7d123f9f361240488961", "content_hash": "8d5846246712df66d9267d0d3215f5bb366f6bb63af5523c8bd97d48b09f1f41", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=10", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=10", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=10", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=10", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=10", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=10", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=10", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=10", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=10", "text": "uuid"}, "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-uuid_ops/?v=10", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=10", "text": "uuid"}}], "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": "2968", "description": ["uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b int4 \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a int4 \u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a COLLATE \uff0c ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/10/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "f2ee5e4386a45a176aa7c61ff8d752aee0ce3aaea06553965bee526ab799f223", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/10/indexes-opclass.html", "method": "same-major semantic node", "sha256": "a63692e6035b21dab0183c026ca8b0c2ac480c3ca9833fdce2081537733252db", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.", "/versions/10/facts/0/label": "Object kind", "/versions/10/facts/0/value": "Operator family", "/versions/10/facts/1/label": "Index AM", "/versions/10/tables/0/title": "Family operator strategies", "/versions/10/tables/1/title": "Family support functions", "/versions/10/tables/2/title": "Classes in this family", "/versions/10/related/0/label": "B-tree Index AM", "/versions/10/sections/0/title": "Operator classes and families", "/versions/10/tables/0/rows/0/scope": "Family member", "/versions/10/tables/0/rows/1/scope": "Family member", "/versions/10/tables/0/rows/2/scope": "Family member", "/versions/10/tables/0/rows/3/scope": "Family member", "/versions/10/tables/0/rows/4/scope": "Family member", "/versions/10/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/10/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/10/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/10/tables/0/rows/0/purpose": "search", "/versions/10/tables/0/rows/1/purpose": "search", "/versions/10/tables/0/rows/2/purpose": "search", "/versions/10/tables/0/rows/3/purpose": "search", "/versions/10/tables/0/rows/4/purpose": "search", "/versions/10/tables/2/rows/0/default": "yes", "/versions/10/tables/0/columns/0/label": "Operator overload", "/versions/10/tables/0/columns/1/label": "Strategy", "/versions/10/tables/0/columns/2/label": "Purpose", "/versions/10/tables/0/columns/3/label": "Ordering family", "/versions/10/tables/0/columns/4/label": "Membership scope", "/versions/10/tables/0/columns/5/label": "Source description", "/versions/10/tables/1/columns/0/label": "Support number", "/versions/10/tables/1/columns/1/label": "Left type", "/versions/10/tables/1/columns/2/label": "Right type", "/versions/10/tables/1/columns/3/label": "Function signature", "/versions/10/tables/1/columns/4/label": "Result type", "/versions/10/tables/2/columns/0/label": "Class", "/versions/10/tables/2/columns/1/label": "Input type", "/versions/10/tables/2/columns/2/label": "Key type", "/versions/10/tables/2/columns/3/label": "Default", "/versions/10/tables/2/rows/0/key_type": "Same as input type", "/versions/10/tables/0/rows/0/description": "less than", "/versions/10/tables/0/rows/1/description": "less than or equal", "/versions/10/tables/0/rows/2/description": "equal", "/versions/10/tables/0/rows/3/description": "greater than or equal", "/versions/10/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "14ac4872f7f713759d2f7d562772cb372f1a8bfc6bd7c552dcf99fb6d5f65bc6", "canonical_center_text_hash": "8d5846246712df66d9267d0d3215f5bb366f6bb63af5523c8bd97d48b09f1f41"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "bb5b2d76278923e085829245cbd4e95a2e225a7f01f8a94ead1106b0762f537f", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002</p><p>\u64cd\u4f5c\u7b26\u7c7b\u786e\u5b9a\u7d22\u5f15\u9488\u5bf9\u8be5\u5217\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u5efa\u7acb\u5728\u7c7b\u578b <code>int4</code> \u4e0a\u7684 B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8be5\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u9488\u5bf9\u4ee5\u4e0b\u7c7b\u578b\u7684\u503c\u7684\u6bd4\u8f83\u51fd\u6570\uff1a<code>int4</code>\u3002\u5b9e\u9645\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5c31\u8db3\u591f\u4e86\u3002\u4e4b\u6240\u4ee5\u9700\u8981\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u80fd\u5b58\u5728\u4e0d\u6b62\u4e00\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6216\u5b9e\u90e8\u5bf9\u590d\u6570\u6570\u636e\u7c7b\u578b\u6392\u5e8f\u3002\u53ef\u4ee5\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u7c7b\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u57fa\u672c\u6392\u5e8f\u987a\u5e8f\uff08\u968f\u540e\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879\u8fdb\u884c\u8c03\u6574\uff1a<code>COLLATE</code>\uff0c<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code>\uff09\u3002\n  </p><p>   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/10/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "11": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=11", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=11", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=11", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=11", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=11", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "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-uuid_ops/?v=11", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=11", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "11.22", "major": "11", "channel": "historical", "revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0", "source_sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0", "manual_fingerprint": "99c9e45d34555f000789cb4e019492e838041c1f2f31d840f3051ff9d7ed9118", "catalog_fingerprint": "4f08eb8c7ac7d09abfbb29a172148a44b8fb72026616bb55a5f8f84db7a38785"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, {"url": "/docs/11/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 11 English manual: indexes-opclass.html", "sha256": "234c67ab5a33096697e1851c197c79ba0e872686c7909c2696716a102253c7bd"}, {"url": "/docs/11/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 11 English manual: catalog-pg-opfamily.html", "sha256": "bc70c6a938dcf14c212ff9139ff1436f8292305ae551f7af4432c2b034d84070"}, {"url": "/docs/11/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 11 English manual: catalog-pg-amop.html", "sha256": "c17d050a6f2d093de2c343242bcc4d446b936de1d2902727d3fa3b0697b44fd3"}, {"url": "/docs/11/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 11 English manual: catalog-pg-amproc.html", "sha256": "819e66cb86af033d3328a3602c65c861e9f2d2c519d1f42f37fdd7766e1fc31f"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/11/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": 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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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/11/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/11/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "55caa4746201d530e711d44f5b8ac0dcc1296d423b4c94e5acedffff10e6f372", "content_hash": "a61b792ca5858622ce48c5427cb7afb4c83427545d647f19cafedabdfdbd5759", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=11", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=11", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=11", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=11", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=11", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}, "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-uuid_ops/?v=11", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=11", "text": "uuid"}}], "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": "2968", "description": ["uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/11/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "d4e01ba05c1f00188e2353ef6816dbe175140ae359defc71e20f92fb0e69299a", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/11/indexes-opclass.html", "method": "same-major semantic node", "sha256": "89f6f02b6aadf86b19cfce09618561d39321a355dbce65ca30759d9044f1ac44", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.", "/versions/11/facts/0/label": "Object kind", "/versions/11/facts/0/value": "Operator family", "/versions/11/facts/1/label": "Index AM", "/versions/11/tables/0/title": "Family operator strategies", "/versions/11/tables/1/title": "Family support functions", "/versions/11/tables/2/title": "Classes in this family", "/versions/11/related/0/label": "B-tree Index AM", "/versions/11/sections/0/title": "Operator classes and families", "/versions/11/tables/0/rows/0/scope": "Family member", "/versions/11/tables/0/rows/1/scope": "Family member", "/versions/11/tables/0/rows/2/scope": "Family member", "/versions/11/tables/0/rows/3/scope": "Family member", "/versions/11/tables/0/rows/4/scope": "Family member", "/versions/11/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/11/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/11/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/11/tables/0/rows/0/purpose": "search", "/versions/11/tables/0/rows/1/purpose": "search", "/versions/11/tables/0/rows/2/purpose": "search", "/versions/11/tables/0/rows/3/purpose": "search", "/versions/11/tables/0/rows/4/purpose": "search", "/versions/11/tables/2/rows/0/default": "yes", "/versions/11/tables/0/columns/0/label": "Operator overload", "/versions/11/tables/0/columns/1/label": "Strategy", "/versions/11/tables/0/columns/2/label": "Purpose", "/versions/11/tables/0/columns/3/label": "Ordering family", "/versions/11/tables/0/columns/4/label": "Membership scope", "/versions/11/tables/0/columns/5/label": "Source description", "/versions/11/tables/1/columns/0/label": "Support number", "/versions/11/tables/1/columns/1/label": "Left type", "/versions/11/tables/1/columns/2/label": "Right type", "/versions/11/tables/1/columns/3/label": "Function signature", "/versions/11/tables/1/columns/4/label": "Result type", "/versions/11/tables/2/columns/0/label": "Class", "/versions/11/tables/2/columns/1/label": "Input type", "/versions/11/tables/2/columns/2/label": "Key type", "/versions/11/tables/2/columns/3/label": "Default", "/versions/11/tables/2/rows/0/key_type": "Same as input type", "/versions/11/tables/0/rows/0/description": "less than", "/versions/11/tables/0/rows/1/description": "less than or equal", "/versions/11/tables/0/rows/2/description": "equal", "/versions/11/tables/0/rows/3/description": "greater than or equal", "/versions/11/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "39e424a0243c9a27f1b641bfebc06c96f4e6e2e6cdf47ec8066ef79d6e13a14f", "canonical_center_text_hash": "a61b792ca5858622ce48c5427cb7afb4c83427545d647f19cafedabdfdbd5759"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "bb5b2d76278923e085829245cbd4e95a2e225a7f01f8a94ead1106b0762f537f", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/11/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "12": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=12", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=12", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=12", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=12", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=12", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "result_type": "void"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": 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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"]}], "center_zh": {"title": "btree/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "12", "text_hash": "0c5823df6bdde79cf07c7baadb5b34872fa5c026037bf182725ebe4893c03f3f", "collection": "opclass", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "payload": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": 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"12", "build_id": 65, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "9e99e81f1c125188bfc1f1d0a61066939ae3307e6311b04025d5cf658d2aa430", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "a67120f673b6f897d586b969ba712eb163912199748fee16e23424c1b61beba5", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/12/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/12/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "09987ef8801e7b03a79a2837c97b7d80f0e093c998287904987bb507ac7b2f40", "content_hash": "0c5823df6bdde79cf07c7baadb5b34872fa5c026037bf182725ebe4893c03f3f", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=12", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=12", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=12", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=12", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=12", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}, "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-uuid_ops/?v=12", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=12", "text": "uuid"}}], "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": "2968", "description": ["uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/12/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "fb1485d72baa6293bbb9db509168fcb9e29aeb84d9eaa463046dffc10c6689ab", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/12/indexes-opclass.html", "method": "same-major semantic node", "sha256": "caf2c6c72b3142db3faa12936bdc35bae99e5144454f5c7391fc02cc93ba1cb1", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/12/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 2 support functions in this source build.", "/versions/12/facts/0/label": "Object kind", "/versions/12/facts/0/value": "Operator family", "/versions/12/facts/1/label": "Index AM", "/versions/12/tables/0/title": "Family operator strategies", "/versions/12/tables/1/title": "Family support functions", "/versions/12/tables/2/title": "Classes in this family", "/versions/12/related/0/label": "B-tree Index AM", "/versions/12/sections/0/title": "Operator classes and families", "/versions/12/tables/0/rows/0/scope": "Family member", "/versions/12/tables/0/rows/1/scope": "Family member", "/versions/12/tables/0/rows/2/scope": "Family member", "/versions/12/tables/0/rows/3/scope": "Family member", "/versions/12/tables/0/rows/4/scope": "Family member", "/versions/12/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/12/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. 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/12/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/12/tables/0/rows/0/purpose": "search", "/versions/12/tables/0/rows/1/purpose": "search", "/versions/12/tables/0/rows/2/purpose": "search", "/versions/12/tables/0/rows/3/purpose": "search", "/versions/12/tables/0/rows/4/purpose": "search", "/versions/12/tables/2/rows/0/default": "yes", "/versions/12/tables/0/columns/0/label": "Operator overload", "/versions/12/tables/0/columns/1/label": "Strategy", "/versions/12/tables/0/columns/2/label": "Purpose", "/versions/12/tables/0/columns/3/label": "Ordering family", "/versions/12/tables/0/columns/4/label": "Membership scope", "/versions/12/tables/0/columns/5/label": "Source description", "/versions/12/tables/1/columns/0/label": "Support number", "/versions/12/tables/1/columns/1/label": "Left type", "/versions/12/tables/1/columns/2/label": "Right type", "/versions/12/tables/1/columns/3/label": "Function signature", "/versions/12/tables/1/columns/4/label": "Result type", "/versions/12/tables/2/columns/0/label": "Class", "/versions/12/tables/2/columns/1/label": "Input type", "/versions/12/tables/2/columns/2/label": "Key type", "/versions/12/tables/2/columns/3/label": "Default", "/versions/12/tables/2/rows/0/key_type": "Same as input type", "/versions/12/tables/0/rows/0/description": "less than", "/versions/12/tables/0/rows/1/description": "less than or equal", "/versions/12/tables/0/rows/2/description": "equal", "/versions/12/tables/0/rows/3/description": "greater than or equal", "/versions/12/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "728170379e3a9b305bf6c2538a4ecb5def75b8d7032c82cecd5b9afbfc668751", "canonical_center_text_hash": "0c5823df6bdde79cf07c7baadb5b34872fa5c026037bf182725ebe4893c03f3f"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "bb5b2d76278923e085829245cbd4e95a2e225a7f01f8a94ead1106b0762f537f", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/12/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "13": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=13", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=13", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=13", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=13", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=13", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=13", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_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": "754d3bdd24f348481fd292a5d0f7a40a217f1ffb5109aa314bd86eff3b6d4eda", "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/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "13", "text_hash": "c41bf9c6d80113943a2952824c15ba119169bad3089701f3e3bd313210a6a5a7", "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-uuid-uuid/?v=13", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=13", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=13", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=13", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=13", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=13", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=13", "text": "uuid"}}], "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": "754d3bdd24f348481fd292a5d0f7a40a217f1ffb5109aa314bd86eff3b6d4eda", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/13/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/13/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "fe652bff9b124c9986e63c5a819be03308caf170e7a5399e25c7984b14ad75c2", "content_hash": "c41bf9c6d80113943a2952824c15ba119169bad3089701f3e3bd313210a6a5a7", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": 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"right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=13", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=13", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=13", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=13", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=13", "text": ">(uuid,uuid)"}, "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": 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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 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"sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}]}, "comparison_hash": "3733cb0c64249a35f5036350bb38ff78dafdc2ade9022b916faec88ecde499a1", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/13/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "14": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=14", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=14", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=14", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=14", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=14", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=14", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_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": "aa5ef2f7bb2ee2a51e93ca7fbc217a96b76c1587b363b970534fc0a41106edf3", "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/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "14", "text_hash": "164078ae4f25968f1d13b3636c64c10f6c465a83341db449d9280f286bf7595c", "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-uuid-uuid/?v=14", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=14", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=14", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=14", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=14", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=14", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}}], "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": "aa5ef2f7bb2ee2a51e93ca7fbc217a96b76c1587b363b970534fc0a41106edf3", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/14/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/14/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "42211fb5cd973a3cff8719609727b9cac3daa9c554d47f6ef7989cae8756bc5e", "content_hash": "164078ae4f25968f1d13b3636c64c10f6c465a83341db449d9280f286bf7595c", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=14", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=14", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=14", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=14", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=14", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=14", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=14", "text": "uuid"}}], "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": "2968", "description": ["uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/14/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "2b8fdc15654f6701ab77bdf068a2c3b50cadd8da3bce8f385811b4193b4952b4", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/14/indexes-opclass.html", "method": "same-major semantic node", "sha256": "4cb8380e551ee45907962594be66e8173948c404caa5f227b1672e5d298bd128", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/14/facts/0/label": "Object kind", "/versions/14/facts/0/value": "Operator family", "/versions/14/facts/1/label": "Index AM", "/versions/14/tables/0/title": "Family operator strategies", "/versions/14/tables/1/title": "Family support functions", "/versions/14/tables/2/title": "Classes in this family", "/versions/14/related/0/label": "B-tree Index AM", "/versions/14/sections/0/title": "Operator classes and families", "/versions/14/tables/0/rows/0/scope": "Family member", "/versions/14/tables/0/rows/1/scope": "Family member", "/versions/14/tables/0/rows/2/scope": "Family member", "/versions/14/tables/0/rows/3/scope": "Family member", "/versions/14/tables/0/rows/4/scope": "Family member", "/versions/14/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/14/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/14/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/14/tables/0/rows/0/purpose": "search", "/versions/14/tables/0/rows/1/purpose": "search", "/versions/14/tables/0/rows/2/purpose": "search", "/versions/14/tables/0/rows/3/purpose": "search", "/versions/14/tables/0/rows/4/purpose": "search", "/versions/14/tables/2/rows/0/default": "yes", "/versions/14/tables/0/columns/0/label": "Operator overload", "/versions/14/tables/0/columns/1/label": "Strategy", "/versions/14/tables/0/columns/2/label": "Purpose", "/versions/14/tables/0/columns/3/label": "Ordering family", "/versions/14/tables/0/columns/4/label": "Membership scope", "/versions/14/tables/0/columns/5/label": "Source description", "/versions/14/tables/1/columns/0/label": "Support number", "/versions/14/tables/1/columns/1/label": "Left type", "/versions/14/tables/1/columns/2/label": "Right type", "/versions/14/tables/1/columns/3/label": "Function signature", "/versions/14/tables/1/columns/4/label": "Result type", "/versions/14/tables/2/columns/0/label": "Class", "/versions/14/tables/2/columns/1/label": "Input type", "/versions/14/tables/2/columns/2/label": "Key type", "/versions/14/tables/2/columns/3/label": "Default", "/versions/14/tables/2/rows/0/key_type": "Same as input type", "/versions/14/tables/0/rows/0/description": "less than", "/versions/14/tables/0/rows/1/description": "less than or equal", "/versions/14/tables/0/rows/2/description": "equal", "/versions/14/tables/0/rows/3/description": "greater than or equal", "/versions/14/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "0e8edac3cb9cf4877839cbde9f8a5a0321f897e12aa9bd9249be84237385d062", "canonical_center_text_hash": "164078ae4f25968f1d13b3636c64c10f6c465a83341db449d9280f286bf7595c"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}]}, "comparison_hash": "3733cb0c64249a35f5036350bb38ff78dafdc2ade9022b916faec88ecde499a1", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/14/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "15": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=15", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=15", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=15", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=15", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=15", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=15", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_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": 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"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": "ec9b2bee8d71bb99bc895031c0afc81daec0add347258bf6b046dd73b43a20b6", "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 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COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "15", "text_hash": "5c7ccb780fa17c5e836113bbfb47d8c42f3c0c1dd307d34f1f52f1f14e04483e", "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-uuid-uuid/?v=15", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=15", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=15", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=15", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=15", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=15", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}}], "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": "ec9b2bee8d71bb99bc895031c0afc81daec0add347258bf6b046dd73b43a20b6", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/15/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/15/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "c4999fca37bb48694beb955ab46d3f6c01912db8a0baf721126c030a865fee5d", "content_hash": "5c7ccb780fa17c5e836113bbfb47d8c42f3c0c1dd307d34f1f52f1f14e04483e", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=15", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=15", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=15", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=15", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=15", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=15", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=15", "text": "uuid"}}], "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": "2968", "description": ["uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/15/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "722b907f43f8178f67214192f7587c04c86bbab3759c44150d611dead287836f", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/15/indexes-opclass.html", "method": "same-major semantic node", "sha256": "99e792c28f2215316661a351044aa90cd191477d266005d4849696ce85bb89ed", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/15/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/15/facts/0/label": "Object kind", "/versions/15/facts/0/value": "Operator family", "/versions/15/facts/1/label": "Index AM", "/versions/15/tables/0/title": "Family operator strategies", "/versions/15/tables/1/title": "Family support functions", "/versions/15/tables/2/title": "Classes in this family", "/versions/15/related/0/label": "B-tree Index AM", "/versions/15/sections/0/title": "Operator classes and families", "/versions/15/tables/0/rows/0/scope": "Family member", "/versions/15/tables/0/rows/1/scope": "Family member", "/versions/15/tables/0/rows/2/scope": "Family member", "/versions/15/tables/0/rows/3/scope": "Family member", "/versions/15/tables/0/rows/4/scope": "Family member", "/versions/15/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/15/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/15/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/15/tables/0/rows/0/purpose": "search", "/versions/15/tables/0/rows/1/purpose": "search", "/versions/15/tables/0/rows/2/purpose": "search", "/versions/15/tables/0/rows/3/purpose": "search", "/versions/15/tables/0/rows/4/purpose": "search", "/versions/15/tables/2/rows/0/default": "yes", "/versions/15/tables/0/columns/0/label": "Operator overload", "/versions/15/tables/0/columns/1/label": "Strategy", "/versions/15/tables/0/columns/2/label": "Purpose", "/versions/15/tables/0/columns/3/label": "Ordering family", "/versions/15/tables/0/columns/4/label": "Membership scope", "/versions/15/tables/0/columns/5/label": "Source description", "/versions/15/tables/1/columns/0/label": "Support number", "/versions/15/tables/1/columns/1/label": "Left type", "/versions/15/tables/1/columns/2/label": "Right type", "/versions/15/tables/1/columns/3/label": "Function signature", "/versions/15/tables/1/columns/4/label": "Result type", "/versions/15/tables/2/columns/0/label": "Class", "/versions/15/tables/2/columns/1/label": "Input type", "/versions/15/tables/2/columns/2/label": "Key type", "/versions/15/tables/2/columns/3/label": "Default", "/versions/15/tables/2/rows/0/key_type": "Same as input type", "/versions/15/tables/0/rows/0/description": "less than", "/versions/15/tables/0/rows/1/description": "less than or equal", "/versions/15/tables/0/rows/2/description": "equal", "/versions/15/tables/0/rows/3/description": "greater than or equal", "/versions/15/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "c4f7d6f38995df5849e95fb0f6e85c43168f6fb5ae7749a2085fe33ae51e2162", "canonical_center_text_hash": "5c7ccb780fa17c5e836113bbfb47d8c42f3c0c1dd307d34f1f52f1f14e04483e"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}]}, "comparison_hash": "3733cb0c64249a35f5036350bb38ff78dafdc2ade9022b916faec88ecde499a1", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/15/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "16": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=16", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=16", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=16", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=16", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=16", "text": ">(uuid,uuid)"}, "strategy": "5", "description": "\u5927\u4e8e", "sort_family": ""}], "title": 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"/wiki/type/uuid/?v=16", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=16", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}}], "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": ["uuid_ops", 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"\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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/16/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/16/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "1e91f6032e6e5999a4a36da12e10fbc88940df2b6d94eaf20af3067ba9625089", "content_hash": "7bcbc26ef7231a8296393c91df4446795718aba6c2b5804f79fbadc5f2ba0a86", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=16", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=16", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=16", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=16", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=16", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=16", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=16", "text": "uuid"}}], "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": "2968", "description": ["uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002"], "sections_zh": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/16/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "704b1a6817cd451566b69b08f4210b2fb192934810322e22cb9a2980f7d93af4", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/16/indexes-opclass.html", "method": "same-major semantic node", "sha256": "da59bf9cb7d8a9ec0aeab1f5d3593429eec79ce6a1715eb47434832287159c3c", "language": "zh", "matched_nodes": ["#INDEXES-OPCLASS/p[3]", "#INDEXES-OPCLASS/p[5]", "#INDEXES-OPCLASS/p[6]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "B-tree operator family containing 1 classes, 5 operator strategies and 3 support functions in this source build.", "/versions/16/facts/0/label": "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": "b05ca2e138f2e090b0f8d06b9cbe094bbabab44ad0eb39c87965f21bca43f4ac", "canonical_center_text_hash": "7bcbc26ef7231a8296393c91df4446795718aba6c2b5804f79fbadc5f2ba0a86"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}]}, "comparison_hash": "3733cb0c64249a35f5036350bb38ff78dafdc2ade9022b916faec88ecde499a1", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/16/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "17": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=17", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=17", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=17", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=17", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=17", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=17", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=17", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "source_sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "manual_fingerprint": "b55870f8e80e1114a92ac7bfc97f4a6fa0dee8e75935895252bb6e5b866cf187", "catalog_fingerprint": "e888e3474202df1c60a8e7b6bf9f2d83b3866a52d119521659b7a82787d3829d"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, {"url": "/docs/17/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 17 English manual: indexes-opclass.html", "sha256": "dcdeb2d461b79e5c679d29f2a6d3ad038c788ba5a6d094e63d17353352db3ef2"}, {"url": "/docs/17/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 17 English manual: catalog-pg-opfamily.html", "sha256": "f7825b4e69f5073f44322085111577a0747a214b367c599e87491f75bc2a05ef"}, {"url": "/docs/17/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 17 English manual: catalog-pg-amop.html", "sha256": "19b2fb110b348860f7fbcb6e0e0544e341f5645113c23f50920a54434d432359"}, {"url": "/docs/17/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 17 English manual: catalog-pg-amproc.html", "sha256": "c1e9a6c78cb61e434eba6e22547c50a677d0c414049fd515263bec770b16ff55"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/17/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "17", "build_id": 105, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "75e451363348ab54434776b1f03440b4f11a01c89d6014709e3211b8ad70ba7f", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd", "translated_from_revision": null}, "body_sha256": "1db6130e79220f02936a6e1740b4ce0ecf2dbeb610ebbe5551274aaf09f5b947", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "17", "text_hash": "80ba65fdb54bdae88de82362b3946d7fe61a4aad57e9e005dbfdb116863887ff", "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-uuid-uuid/?v=17", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=17", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=17", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=17", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=17", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}, "result_type": "bool"}], "title": "\u5bb6\u65cf\u652f\u6301\u51fd\u6570", "columns": [{"key": "number", "label": "\u652f\u6301\u51fd\u6570\u7f16\u53f7"}, {"key": "left_type", "label": "\u5de6\u4fa7\u7c7b\u578b"}, {"key": "right_type", "label": "\u53f3\u4fa7\u7c7b\u578b"}, {"key": "function", "label": "\u51fd\u6570\u7b7e\u540d"}, {"key": "result_type", "label": "\u8fd4\u56de\u7c7b\u578b"}]}, {"key": "classes", "rows": [{"class": {"url": "/wiki/opclass/class-btree-uuid_ops/?v=17", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=17", "text": "uuid"}}], "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": "1db6130e79220f02936a6e1740b4ce0ecf2dbeb610ebbe5551274aaf09f5b947", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em class=\"firstterm\">\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code class=\"type\">int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code class=\"literal\">int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code class=\"type\">int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code class=\"literal\">COLLATE</code>\u3001<code class=\"literal\">ASC</code>/<code class=\"literal\">DESC</code> \u548c/\u6216 <code class=\"literal\">NULLS FIRST</code>/<code class=\"literal\">NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/17/indexes-opclass.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/17/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "bf4d0c2302fa519571eb036f1022d5add2c462354d0c56ca808040a931f68819", "content_hash": "80ba65fdb54bdae88de82362b3946d7fe61a4aad57e9e005dbfdb116863887ff", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": 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"right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=17", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=17", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=17", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=17", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=17", "text": ">(uuid,uuid)"}, "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": 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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 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"sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}]}, "comparison_hash": "3733cb0c64249a35f5036350bb38ff78dafdc2ade9022b916faec88ecde499a1", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr></tbody></table><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a<em>\u64cd\u4f5c\u7b26\u7c7b</em>\u3002\n</p><p>\n   \u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b <code>int4</code> \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 <code>int4_ops</code> \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 <code>int4</code> \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 <code>COLLATE</code>\u3001<code>ASC</code>/<code>DESC</code> \u548c/\u6216 <code>NULLS FIRST</code>/<code>NULLS LAST</code> \u6765\u4fee\u6539\uff09\u3002\n  </p><p>\n   \u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n   </p><p>\n    \u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u663e\u793a\u6240\u6709\u5df2\u5b9a\u4e49\u7684\u64cd\u4f5c\u7b26\u7c7b\uff1a\n\n</p><p><a href=\"/zh/docs/17/indexes-opclass.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "18": {"facts": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "family": {"name": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=18", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=18", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=18", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=18", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=18", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "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-uuid_ops/?v=18", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=18", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "manual_fingerprint": "fefce9e478eb2afe5e17e869492bbedc67dce23d317f0a5257240113d6496ebc", "catalog_fingerprint": "deec62e0f0c649d9d0d058ddd0b16bf41afffd569c3fd73949ff0971ce5cabd6"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, {"url": "/docs/18/indexes-opclass.html", "path": "indexes-opclass.html", "label": "PostgreSQL 18 English manual: indexes-opclass.html", "sha256": "07de06abf3a2aff2a891a2789def434d9b76705e54d45ca5338dc13451ae2962"}, {"url": "/docs/18/catalog-pg-opfamily.html", "path": "catalog-pg-opfamily.html", "label": "PostgreSQL 18 English manual: catalog-pg-opfamily.html", "sha256": "d4a2b7c2bcb5350b0c1f0111b61e4566f46fd97f48802d3ced2421a7aea60b80"}, {"url": "/docs/18/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 18 English manual: catalog-pg-amop.html", "sha256": "e65b90ee78eaf4b4da97ce5b08b972cee2e2660b882ec107be22eca47201f7d1"}, {"url": "/docs/18/catalog-pg-amproc.html", "path": "catalog-pg-amproc.html", "label": "PostgreSQL 18 English manual: catalog-pg-amproc.html", "sha256": "0a09afbde0ba8da9899bf770b86d8301bee116057b16ebe7db0e4a7fca2e91c6"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/indexes-opclass.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "indexes-opclass.html", "extraction": "concept-introduction", "source_hash": "cce6c9b1d4fbb418823aa7be2585facae45f45a5f75c43bd26170c1383c2a4b5", "fragment_sha256": "dad5545190ebde655fce48dfc13cd02d2863166fac7cf0c2b28b059c9e419ae4", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "786d07c09f937e80a2d4ee89017121398615a9f85a3736c251e3d8eb63f5357b", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5bf9\u8c61\u79cd\u7c7b", "value": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "value": "B-tree"}], "sections": [{"title": "\u64cd\u4f5c\u7b26\u7c7b\u4e0e\u5bb6\u65cf", "paragraphs": ["\u4e00\u4e2a\u7d22\u5f15\u5b9a\u4e49\u53ef\u4ee5\u4e3a\u7d22\u5f15\u7684\u6bcf\u4e00\u5217\u6307\u5b9a\u4e00\u4e2a \u64cd\u4f5c\u7b26\u7c7b \u3002", "\u64cd\u4f5c\u7b26\u7c7b\u6807\u8bc6\u8be5\u7d22\u5f15\u5728\u8be5\u5217\u4e0a\u8981\u4f7f\u7528\u54ea\u4e9b\u64cd\u4f5c\u7b26\u3002\u4f8b\u5982\uff0c\u7c7b\u578b int4 \u4e0a\u7684\u4e00\u4e2a B-\u6811\u7d22\u5f15\u4f1a\u4f7f\u7528 int4_ops \u7c7b\uff1b\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u7c7b\u5305\u542b\u5bf9 int4 \u503c\u8fdb\u884c\u6bd4\u8f83\u6240\u9700\u7684\u51fd\u6570\u3002\u5b9e\u8df5\u4e2d\uff0c\u5217\u6570\u636e\u7c7b\u578b\u7684\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u901a\u5e38\u5df2\u7ecf\u8db3\u591f\u3002\u4e4b\u6240\u4ee5\u5b58\u5728\u64cd\u4f5c\u7b26\u7c7b\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5bf9\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u53ef\u80fd\u5b58\u5728\u591a\u79cd\u6709\u610f\u4e49\u7684\u7d22\u5f15\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u6309\u7edd\u5bf9\u503c\u6392\u5e8f\u4e00\u79cd\u590d\u6570\u6570\u636e\u7c7b\u578b\uff0c\u4e5f\u53ef\u80fd\u5e0c\u671b\u6309\u5b9e\u90e8\u6392\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e3a\u8be5\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e24\u4e2a\u64cd\u4f5c\u7b26\u7c7b\uff0c\u5e76\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9009\u62e9\u5408\u9002\u7684\u90a3\u4e2a\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u64cd\u4f5c\u7b26\u7c7b\u51b3\u5b9a\u4e86\u57fa\u7840\u6392\u5e8f\u987a\u5e8f\uff08\u4e4b\u540e\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u6392\u5e8f\u9009\u9879 COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "18", "text_hash": "661f6c9bcc306bd94f9e85a0d2c7b86bfce969a6c7c049debc92a02ce91bd687", "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-uuid-uuid/?v=18", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=18", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=18", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=18", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=18", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "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-uuid_ops/?v=18", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}}], "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": "786d07c09f937e80a2d4ee89017121398615a9f85a3736c251e3d8eb63f5357b", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "66d7b04a9537889254f9540a41c2fc78b12c9f8d60074b43f4ebfa5faae0f8a1", "content_hash": "661f6c9bcc306bd94f9e85a0d2c7b86bfce969a6c7c049debc92a02ce91bd687", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=18", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=18", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=18", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=18", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=18", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}, "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-uuid_ops/?v=18", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=18", "text": "uuid"}}], "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": "2968", "description": ["uuid_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 4 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": "4795086eefd75d3e10bd7dbc7b8d547e09afaa62167c714409946040c2365456", "canonical_center_text_hash": "661f6c9bcc306bd94f9e85a0d2c7b86bfce969a6c7c049debc92a02ce91bd687"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "e4030208c95c34b3f0a69fd44d965e70c1b4a364decf8d59c4a9f3e2700356c9", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=19", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=19", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=19", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=19", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=19", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "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-uuid_ops/?v=19", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_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": "cc4f64f2c00daeb64de3f0174a659de01c42fa01ca5e7c299f1a09b512ff3f47", "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/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "19", "text_hash": "8a5c467facd150ec9b8098e36601415e1b2d061cb078cf158064e5aebf57b292", "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-uuid-uuid/?v=19", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=19", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=19", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=19", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=19", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "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-uuid_ops/?v=19", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}}], "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": "cc4f64f2c00daeb64de3f0174a659de01c42fa01ca5e7c299f1a09b512ff3f47", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "70145792b80ec4b512d8bd7e2063af8bf59779ce9ef274bb37de920c253607ae", "content_hash": "8a5c467facd150ec9b8098e36601415e1b2d061cb078cf158064e5aebf57b292", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=19", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=19", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=19", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=19", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=19", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}, "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-uuid_ops/?v=19", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=19", "text": "uuid"}}], "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": "2968", "description": ["uuid_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 4 support functions in this source build.", "/versions/19/facts/0/label": "Object kind", "/versions/19/facts/0/value": "Operator family", "/versions/19/facts/1/label": "Index AM", "/versions/19/tables/0/title": "Family operator strategies", "/versions/19/tables/1/title": "Family support functions", "/versions/19/tables/2/title": "Classes in this family", "/versions/19/related/0/label": "B-tree Index AM", "/versions/19/sections/0/title": "Operator classes and families", "/versions/19/tables/0/rows/0/scope": "Family member", "/versions/19/tables/0/rows/1/scope": "Family member", "/versions/19/tables/0/rows/2/scope": "Family member", "/versions/19/tables/0/rows/3/scope": "Family member", "/versions/19/tables/0/rows/4/scope": "Family member", "/versions/19/sections/0/paragraphs/0": "An index definition can specify an operator class for each column of an index.", "/versions/19/sections/0/paragraphs/1": "The operator class identifies the operators to be used by the index for that column. For example, a B-tree index on the type int4 would use the int4_ops class; this operator class includes comparison functions for values of type int4 . In practice the default operator class for the column's data type is usually sufficient. The main reason for having operator classes is that for some data types, there could be more than one meaningful index behavior. For example, we might want to sort a complex-number data type either by absolute value or by real part. We could do this by defining two operator classes for the data type and then selecting the proper class when making an index. The operator class determines the basic sort ordering (which can then be modified by adding sort options COLLATE , ASC / DESC and/or NULLS FIRST / NULLS LAST ).", "/versions/19/sections/0/paragraphs/2": "There are also some built-in operator classes besides the default ones:", "/versions/19/tables/0/rows/0/purpose": "search", "/versions/19/tables/0/rows/1/purpose": "search", "/versions/19/tables/0/rows/2/purpose": "search", "/versions/19/tables/0/rows/3/purpose": "search", "/versions/19/tables/0/rows/4/purpose": "search", "/versions/19/tables/2/rows/0/default": "yes", "/versions/19/tables/0/columns/0/label": "Operator overload", "/versions/19/tables/0/columns/1/label": "Strategy", "/versions/19/tables/0/columns/2/label": "Purpose", "/versions/19/tables/0/columns/3/label": "Ordering family", "/versions/19/tables/0/columns/4/label": "Membership scope", "/versions/19/tables/0/columns/5/label": "Source description", "/versions/19/tables/1/columns/0/label": "Support number", "/versions/19/tables/1/columns/1/label": "Left type", "/versions/19/tables/1/columns/2/label": "Right type", "/versions/19/tables/1/columns/3/label": "Function signature", "/versions/19/tables/1/columns/4/label": "Result type", "/versions/19/tables/2/columns/0/label": "Class", "/versions/19/tables/2/columns/1/label": "Input type", "/versions/19/tables/2/columns/2/label": "Key type", "/versions/19/tables/2/columns/3/label": "Default", "/versions/19/tables/2/rows/0/key_type": "Same as input type", "/versions/19/tables/0/rows/0/description": "less than", "/versions/19/tables/0/rows/1/description": "less than or equal", "/versions/19/tables/0/rows/2/description": "equal", "/versions/19/tables/0/rows/3/description": "greater than or equal", "/versions/19/tables/0/rows/4/description": "greater than"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "f506f8976b705526eee79e74c4ee6a7a182c91520eb7419e31cfc387d76eb265", "canonical_center_text_hash": "8a5c467facd150ec9b8098e36601415e1b2d061cb078cf158064e5aebf57b292"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "e4030208c95c34b3f0a69fd44d965e70c1b4a364decf8d59c4a9f3e2700356c9", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=20", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=20", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=20", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=20", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=20", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "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-uuid_ops/?v=20", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}}], "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": ["uuid_ops", "btree/uuid_ops"], "classes": [{"name": "uuid_ops", "slug": "class-btree-uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid", "source_oid": "", "family_slug": "family-btree-uuid_ops"}], "related": [{"url": "/wiki/indexam/btree/?v=20", "label": "B-tree \u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}], 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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 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COLLATE \u3001 ASC / DESC \u548c/\u6216 NULLS FIRST / NULLS LAST \u6765\u4fee\u6539\uff09\u3002", "\u9664\u4e86\u9ed8\u8ba4\u64cd\u4f5c\u7b26\u7c7b\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5185\u7f6e\u64cd\u4f5c\u7b26\u7c7b\uff1a"]}], "center_zh": {"title": "btree/uuid_ops (family)", "locale": "zh-Hans", "source": {"key": "family-btree-uuid_ops", "locale": "zh-Hans", "version": "20", "text_hash": "4a150d0f668d9d1059c7a87c9e6c2f649e6117565f3793fb5874b86e5d58b7b9", "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-uuid-uuid/?v=20", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=20", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=20", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=20", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=20", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "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-uuid_ops/?v=20", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}}], "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": "74530b28807d90cd0514aa07384903272d14acf7a2caee58683a4c745f44c9c7", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "1e9bcc8829119771979f9b23b13524b8cdb055dd0ec5d6fd4a1ccffae6890add", "content_hash": "4a150d0f668d9d1059c7a87c9e6c2f649e6117565f3793fb5874b86e5d58b7b9", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "description": "less than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "description": "less than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "description": "equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "description": "greater than or equal", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e3d-uuid-uuid", "sort_family_slug": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "description": "greater than", "family_slug": "family-btree-uuid_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3e-uuid-uuid", "sort_family_slug": ""}], "signature": "btree/uuid_ops", "tables_zh": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=20", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=20", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=20", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=20", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=20", "text": ">(uuid,uuid)"}, "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": "uuid_cmp(uuid,uuid)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "int4"}, {"number": "2", "function": "uuid_sortsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "void"}, {"number": "4", "function": "btequalimage(oid)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "result_type": "bool"}, {"number": "6", "function": "uuid_skipsupport(internal)", "left_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "right_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}, "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-uuid_ops/?v=20", "text": "uuid_ops"}, "default": "\u662f", "key_type": "Same as input type", "input_type": {"url": "/wiki/type/uuid/?v=20", "text": "uuid"}}], "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": "2968", "description": ["uuid_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 4 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 4 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": "7ce0f6e04049948466b955a94b5ac834c2bede8f835413df6eaace794b19d082", "canonical_center_text_hash": "4a150d0f668d9d1059c7a87c9e6c2f649e6117565f3793fb5874b86e5d58b7b9"}, "description_zh": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "comparison_data": {"kind": "family", "classes": [{"name": "uuid_ops", "family": "uuid_ops", "method": "btree", "default": "t", "key_type": "none", "input_type": "uuid"}], "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": "1", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<=(uuid,uuid)", "strategy": "2", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "=(uuid,uuid)", "strategy": "3", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">=(uuid,uuid)", "strategy": "4", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "e4030208c95c34b3f0a69fd44d965e70c1b4a364decf8d59c4a9f3e2700356c9", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_ops", "method": "btree"}, "tables": [{"key": "operators", "rows": [{"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c-uuid-uuid/?v=18", "text": "<(uuid,uuid)"}, "strategy": "1", "description": "\u5c0f\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3c3d-uuid-uuid/?v=18", "text": "<=(uuid,uuid)"}, "strategy": "2", "description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=18", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", 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"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": "786d07c09f937e80a2d4ee89017121398615a9f85a3736c251e3d8eb63f5357b", "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": "uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002", "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "uuid_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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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": "66d7b04a9537889254f9540a41c2fc78b12c9f8d60074b43f4ebfa5faae0f8a1", "content_hash": "661f6c9bcc306bd94f9e85a0d2c7b86bfce969a6c7c049debc92a02ce91bd687", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": "<(uuid,uuid)", "strategy": 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"description": "\u5c0f\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3d-uuid-uuid/?v=18", "text": "=(uuid,uuid)"}, "strategy": "3", "description": "\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e3d-uuid-uuid/?v=18", "text": ">=(uuid,uuid)"}, "strategy": "4", "description": "\u5927\u4e8e\u7b49\u4e8e", "sort_family": ""}, {"scope": "\u5bb6\u65cf\u6210\u5458", "purpose": "\u641c\u7d22", "operator": {"url": "/wiki/operator/op-3e-uuid-uuid/?v=18", "text": ">(uuid,uuid)"}, "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": 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\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 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"sort_family": ""}, {"family": "uuid_ops", "method": "btree", "purpose": "search", "operator": ">(uuid,uuid)", "strategy": "5", "left_type": "uuid", "right_type": "uuid", "sort_family": ""}], "attributes": {"name": "uuid_ops", "method": "btree"}, "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "result_type": "void"}]}, "comparison_hash": "e4030208c95c34b3f0a69fd44d965e70c1b4a364decf8d59c4a9f3e2700356c9", "manual_language": "zh", "support_functions": [{"family": "uuid_ops", "method": "btree", "number": "1", "function": "uuid_cmp(uuid,uuid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "int4"}, {"family": "uuid_ops", "method": "btree", "number": "2", "function": "uuid_sortsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}, {"family": "uuid_ops", "method": "btree", "number": "4", "function": "btequalimage(oid)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "bool"}, {"family": "uuid_ops", "method": "btree", "number": "6", "function": "uuid_skipsupport(internal)", "left_type": "uuid", "right_type": "uuid", "family_slug": "family-btree-uuid_ops", "result_type": "void"}], "description_zh_html": "<p>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_ops \u662f btree \u7684\u8fd0\u7b97\u7b26\u65cf\u3002</p><dl><dt>\u540d\u79f0</dt><dd><code>uuid_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;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>2</code></td><td><code>\u641c\u7d22</code></td><td><code>&lt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>3</code></td><td><code>\u641c\u7d22</code></td><td><code>=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>4</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;=(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code></code></td></tr><tr><td><code>5</code></td><td><code>\u641c\u7d22</code></td><td><code>&gt;(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</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>uuid_cmp(uuid,uuid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>int4</code></td></tr><tr><td><code>2</code></td><td><code>uuid_sortsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>void</code></td></tr><tr><td><code>4</code></td><td><code>btequalimage(oid)</code></td><td><code>uuid</code></td><td><code>uuid</code></td><td><code>bool</code></td></tr><tr><td><code>6</code></td><td><code>uuid_skipsupport(internal)</code></td><td><code>uuid</code></td><td><code>uuid</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@@ -93,6 +93,15 @@\n       \"number\": \"4\",\n       \"result_type\": \"bool\",\n       \"right_type\": \"uuid\"\n+    },\n+    {\n+      \"family\": \"uuid_ops\",\n+      \"function\": \"uuid_skipsupport(internal)\",\n+      \"left_type\": \"uuid\",\n+      \"method\": \"btree\",\n+      \"number\": \"6\",\n+      \"result_type\": \"void\",\n+      \"right_type\": \"uuid\"\n     }\n   ]\n }"}}