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"\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.12 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "10", "text_hash": 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"purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=10", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=10", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/10/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "10", "build_id": 63, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "870c7f6d7f9191fcadd22f350757fd9479ff58e5275c7ebf8ec96711a855bafe", "fragment_sha256": "b9dad14209496011fd94abd21d7e19af357ab6089c550e36a5196a0683ab0054", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:62997ea80516ad012fbf6359de33f3b016b54c47e2df76e75606116b4baaf8e5", "translated_from_revision": null}, "body_sha256": "5bea03bc82eac3b0c06c334d7721aaca9a20526eca8f876b1b679729eac3171f", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.12 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/10/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/10/xoper.html\">\u7b2c\u00a037.12\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code class=\"structfield\">oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/10/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": 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"<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/10/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/10/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.12\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/10/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "0c41b2335234216cdf517d97dd08bccf0bdf1f0395f821bcf0913c51958b9e96", "content_hash": "517dbfff66b17186c7b2372795f88e743c03fb068c7f8fad07e31a1d60e1e7f9", 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"sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.12 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "3740bedec8ec7057a4675ce56725731bbf5f224a99576be65691ff91e66c9e5b", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]", "#CATALOG-PG-OPERATOR/p[5]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "less than or equal", "/versions/10/facts/0/label": "Left operand", "/versions/10/facts/1/label": "Right operand", "/versions/10/facts/2/label": "Result type", "/versions/10/facts/3/label": "Implementing function", "/versions/10/facts/4/label": "Operator kind", "/versions/10/facts/5/label": "Hash join candidate", "/versions/10/facts/5/value": "no", "/versions/10/facts/6/label": "Merge join candidate", "/versions/10/facts/6/value": "no", "/versions/10/tables/0/title": "Declared operator-family membership", "/versions/10/related/0/label": "timestamp data type", "/versions/10/related/1/label": "date data type", "/versions/10/related/2/label": "bool data type", "/versions/10/related/3/label": "Commutator: >=(date,timestamp)", "/versions/10/related/4/label": "Negator: >(timestamp,date)", "/versions/10/related/5/label": "btree/datetime_ops family", "/versions/10/related/6/label": "brin/datetime_minmax_ops family", "/versions/10/sections/0/title": "Catalog interpretation", "/versions/10/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 37.12 for more information.", "/versions/10/sections/0/paragraphs/1": "Unused columns contain zeroes. For example, oprleft is zero for a prefix operator.", "/versions/10/tables/0/rows/0/purpose": "search", "/versions/10/tables/0/rows/1/purpose": "search", "/versions/10/tables/0/columns/0/label": "Index AM", "/versions/10/tables/0/columns/1/label": "Family", "/versions/10/tables/0/columns/2/label": "Strategy", "/versions/10/tables/0/columns/3/label": "Purpose", "/versions/10/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "e2eaa6ef74d0bbc6215e840724e223bba5b6df1ef931653ac12b3eb10011ba8b", "canonical_center_text_hash": "517dbfff66b17186c7b2372795f88e743c03fb068c7f8fad07e31a1d60e1e7f9"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "9371bfb78965b1c14119940b58052480d5dd1ef50cb6287d5ac9e1a085863462", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/10/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/10/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.12\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/10/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "11": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=11", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=11", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=11", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=11", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=11", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=11", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=11", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=11", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=11", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=11", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=11", "label": "brin/datetime_minmax_ops \u5bb6\u65cf"}], "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/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 11 English manual: catalog-pg-operator.html", "sha256": "3de94bb7f17052a69cf35056c95cac18bf74de96ea2c7b243165f1eeb6a3d587"}, {"url": "/docs/11/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 11 English manual: catalog-pg-amop.html", "sha256": "c17d050a6f2d093de2c343242bcc4d446b936de1d2902727d3fa3b0697b44fd3"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/11/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "0a1886d791082632a12e7f8727bde5468669f9a29ef4525aa1c89ba15b017a01", "fragment_sha256": "adb97cbf474fdd0e74539c40cd3f68706ea9b84436a3670063f959f620302de8", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "7901d7c64bda60d427ad086bfc18d90ea359436e6144146af1fdee312b4a5fd6", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.13 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "11", "text_hash": "dc1a7580f35a26afccfffed2bf0079a906f5e9d734f2acc3dcd413af7848723e", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=11", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=11", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=11", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=11", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/11/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "0a1886d791082632a12e7f8727bde5468669f9a29ef4525aa1c89ba15b017a01", "fragment_sha256": "adb97cbf474fdd0e74539c40cd3f68706ea9b84436a3670063f959f620302de8", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "7901d7c64bda60d427ad086bfc18d90ea359436e6144146af1fdee312b4a5fd6", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.13 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/11/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/11/xoper.html\">\u7b2c\u00a038.13\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code class=\"structfield\">oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/11/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "11", "link_map": {"/zh/docs/11/xoper.html": "/docs/11/xoper.html", "/zh/docs/11/sql-createoperator.html": "/docs/11/sql-createoperator.html", "/zh/docs/11/catalog-pg-operator.html": "/docs/11/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/11/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/11/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.13\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/11/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "605c690e02d91367d98afd2915da37575ae015b1a4e6e0bbff7f0923624e7c76", "content_hash": "dc1a7580f35a26afccfffed2bf0079a906f5e9d734f2acc3dcd413af7848723e", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "signature": "<=(timestamp,date) \u2192 bool", "tables_zh": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=11", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=11", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=11", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=11", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.13 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "f82a79efdee09289202a35db03a983767f4fc93fe523141f530180cd56c9dd23", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]", "#CATALOG-PG-OPERATOR/p[5]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "less than or equal", "/versions/11/facts/0/label": "Left operand", "/versions/11/facts/1/label": "Right operand", "/versions/11/facts/2/label": "Result type", "/versions/11/facts/3/label": "Implementing function", "/versions/11/facts/4/label": "Operator kind", "/versions/11/facts/5/label": "Hash join candidate", "/versions/11/facts/5/value": "no", "/versions/11/facts/6/label": "Merge join candidate", "/versions/11/facts/6/value": "no", "/versions/11/tables/0/title": "Declared operator-family membership", "/versions/11/related/0/label": "timestamp data type", "/versions/11/related/1/label": "date data type", "/versions/11/related/2/label": "bool data type", "/versions/11/related/3/label": "Commutator: >=(date,timestamp)", "/versions/11/related/4/label": "Negator: >(timestamp,date)", "/versions/11/related/5/label": "btree/datetime_ops family", "/versions/11/related/6/label": "brin/datetime_minmax_ops family", "/versions/11/sections/0/title": "Catalog interpretation", "/versions/11/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.13 for more information.", "/versions/11/sections/0/paragraphs/1": "Unused columns contain zeroes. For example, oprleft is zero for a prefix operator.", "/versions/11/tables/0/rows/0/purpose": "search", "/versions/11/tables/0/rows/1/purpose": "search", "/versions/11/tables/0/columns/0/label": "Index AM", "/versions/11/tables/0/columns/1/label": "Family", "/versions/11/tables/0/columns/2/label": "Strategy", "/versions/11/tables/0/columns/3/label": "Purpose", "/versions/11/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "0d6aa84f868c2c9c21fa170cb1561130a769577187d1b18564279baa6b17f488", "canonical_center_text_hash": "dc1a7580f35a26afccfffed2bf0079a906f5e9d734f2acc3dcd413af7848723e"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "9371bfb78965b1c14119940b58052480d5dd1ef50cb6287d5ac9e1a085863462", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/11/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/11/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.13\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/11/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "12": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=12", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=12", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=12", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=12", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=12", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=12", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=12", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=12", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=12", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=12", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=12", "label": "brin/datetime_minmax_ops 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"path": "catalog-pg-amop.html", "label": "PostgreSQL 12 English manual: catalog-pg-amop.html", "sha256": "84b91a9d763b1fb2968cc8be226a0369d31a6acb2468eb56cfd0b8d2030d1b45"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/12/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "12", "build_id": 65, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "81ee405c6c78bb15e19f04abae13db32e44641d76ab4b54f5a93e2fe5ccf7ff2", "fragment_sha256": "caa51cc02d567e9c4f74ed11c50a00e96c00f3b660a06a90fe345dec73c95524", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "592d4b0c5e4443c2c5c08ed1854bcdb363efad6edad30169cd359e69687a345b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "12", "text_hash": "96a06c77026f66424e448f4c69214bc9ccca448fcfc6a6cf6a77daa4f402d106", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=12", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=12", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=12", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=12", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/12/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "12", "build_id": 65, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "81ee405c6c78bb15e19f04abae13db32e44641d76ab4b54f5a93e2fe5ccf7ff2", "fragment_sha256": "caa51cc02d567e9c4f74ed11c50a00e96c00f3b660a06a90fe345dec73c95524", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "592d4b0c5e4443c2c5c08ed1854bcdb363efad6edad30169cd359e69687a345b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/12/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/12/xoper.html\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code class=\"structfield\">oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/12/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "12", "link_map": {"/zh/docs/12/xoper.html": "/docs/12/xoper.html", "/zh/docs/12/sql-createoperator.html": "/docs/12/sql-createoperator.html", "/zh/docs/12/catalog-pg-operator.html": "/docs/12/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/12/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/12/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/12/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "72fb41c01a2e2e2b55d4049f19ea6483d831cf965c1eefffe6519832fed98d81", "content_hash": "96a06c77026f66424e448f4c69214bc9ccca448fcfc6a6cf6a77daa4f402d106", 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\u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "4a79b5202e1196d421bb3e2618f56796ef0b5c8fc2303cae3f9889c405e5236f", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]", "#CATALOG-PG-OPERATOR/p[5]"]}], "language": "zh", "original_text": {"/versions/12/description/0": "less than or equal", "/versions/12/facts/0/label": "Left operand", "/versions/12/facts/1/label": "Right operand", 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For example, oprleft is zero for a prefix operator.", "/versions/12/tables/0/rows/0/purpose": "search", "/versions/12/tables/0/rows/1/purpose": "search", "/versions/12/tables/0/columns/0/label": "Index AM", "/versions/12/tables/0/columns/1/label": "Family", "/versions/12/tables/0/columns/2/label": "Strategy", "/versions/12/tables/0/columns/3/label": "Purpose", "/versions/12/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "90cb8d55c5d3993530b0cb946ce5c3f461b76e6f6184485dc713e49eb539fd5a", "canonical_center_text_hash": "96a06c77026f66424e448f4c69214bc9ccca448fcfc6a6cf6a77daa4f402d106"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "9371bfb78965b1c14119940b58052480d5dd1ef50cb6287d5ac9e1a085863462", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/12/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/12/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/12/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "13": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=13", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=13", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=13", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=13", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=13", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=13", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=13", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=13", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=13", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=13", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=13", "label": "brin/datetime_minmax_ops \u5bb6\u65cf"}], "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/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 13 English manual: catalog-pg-operator.html", "sha256": "1a325d2fa41f711c0a7fa6b57e37e8e98a59f218e01112e0767c455c1b5818a1"}, {"url": "/docs/13/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 13 English manual: catalog-pg-amop.html", "sha256": "7a8e67f8dc59c305612c6d029fc8760c092f27203d5338c6db6c6d9b8aabc561"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/13/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "a953a87e505ef7011772f0f7fee1d4b3f3aa87988dbd06681afb0d42f04d59c4", "fragment_sha256": "9deaa0c9b4dba942fa5d70e6d150b80f86f25568750984ad78fe484949a8f577", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "c75e03996166c8f0a15a75eab668472af215f6aef3f59f84b811d113cf427f82", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "13", "text_hash": "f2ae0c312845b551b2f4f2fe5ed342090ed3c2ddeb6fb254f2695e55ad0d4956", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=13", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=13", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=13", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=13", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/13/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "a953a87e505ef7011772f0f7fee1d4b3f3aa87988dbd06681afb0d42f04d59c4", "fragment_sha256": "9deaa0c9b4dba942fa5d70e6d150b80f86f25568750984ad78fe484949a8f577", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "c75e03996166c8f0a15a75eab668472af215f6aef3f59f84b811d113cf427f82", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/13/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/13/xoper.html\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code class=\"structfield\">oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/13/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "13", "link_map": {"/zh/docs/13/xoper.html": "/docs/13/xoper.html", "/zh/docs/13/sql-createoperator.html": "/docs/13/sql-createoperator.html", "/zh/docs/13/catalog-pg-operator.html": "/docs/13/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/13/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/13/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/13/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "096a386cbf51983844d287862db2facb6730b11db0c6a8b4fe13e59a4bd89e58", "content_hash": "f2ae0c312845b551b2f4f2fe5ed342090ed3c2ddeb6fb254f2695e55ad0d4956", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "signature": "<=(timestamp,date) \u2192 bool", "tables_zh": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=13", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=13", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=13", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=13", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/13/catalog-pg-amop.html", "method": "same-major semantic node", "sha256": "344df36a802a949f2a1e178d6708bf07012cd0daff6368987f59cab3023d2853", "language": "zh", "matched_nodes": ["#CATALOG-PG-AMOP/p[2]/em[1]"]}, {"url": "/docs/13/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "46fd38944eeaedaf5977bf7e555facfc61d03f97bee7df978680e2d60921724e", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]", "#CATALOG-PG-OPERATOR/p[5]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "less than or equal", "/versions/13/facts/0/label": "Left operand", "/versions/13/facts/1/label": "Right operand", "/versions/13/facts/2/label": "Result type", "/versions/13/facts/3/label": "Implementing function", "/versions/13/facts/4/label": "Operator kind", "/versions/13/facts/5/label": "Hash join candidate", "/versions/13/facts/5/value": "no", "/versions/13/facts/6/label": "Merge join candidate", "/versions/13/facts/6/value": "no", "/versions/13/tables/0/title": "Declared operator-family membership", "/versions/13/related/0/label": "timestamp data type", "/versions/13/related/1/label": "date data type", "/versions/13/related/2/label": "bool data type", "/versions/13/related/3/label": "Commutator: >=(date,timestamp)", "/versions/13/related/4/label": "Negator: >(timestamp,date)", "/versions/13/related/5/label": "btree/datetime_ops family", "/versions/13/related/6/label": "brin/datetime_minmax_ops family", "/versions/13/sections/0/title": "Catalog interpretation", "/versions/13/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 37.14 for more information.", "/versions/13/sections/0/paragraphs/1": "Unused columns contain zeroes. For example, oprleft is zero for a prefix operator.", "/versions/13/tables/0/rows/0/purpose": "search", "/versions/13/tables/0/rows/1/purpose": "search", "/versions/13/tables/0/columns/0/label": "Index AM", "/versions/13/tables/0/columns/1/label": "Family", "/versions/13/tables/0/columns/2/label": "Strategy", "/versions/13/tables/0/columns/3/label": "Purpose", "/versions/13/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "619f0bd5369526cd15c6cca5019b26ad21ed984e1147dd3f5883d3f75ac5117b", "canonical_center_text_hash": "f2ae0c312845b551b2f4f2fe5ed342090ed3c2ddeb6fb254f2695e55ad0d4956"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "9371bfb78965b1c14119940b58052480d5dd1ef50cb6287d5ac9e1a085863462", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/13/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/13/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/13/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "14": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=14", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=14", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=14", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=14", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=14", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=14", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=14", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=14", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=14", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=14", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=14", "label": 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{"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "14", "text_hash": "dacba853bf9f53feff352bbfb69808de69698d67e16aaa908cc7620113c8c5f9", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=14", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=14", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=14", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=14", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=14", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=14", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/14/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "14", "build_id": 99, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "7b43aa001c59590aa12f98efc5a136c1c69f558905b4779d8f4c2359236b9933", "fragment_sha256": "c7c37ee2fc9ea001cbdd3723fd63b2356bc4f97e3dd6f7b8a5e932e002a8e23b", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:87e6aa4fd6e1ec85c5f4a6de4f5647cfd9e5de734ca2c266d32b6d6192c662ef", "translated_from_revision": null}, "body_sha256": "ac78148603d31fc9a8c7dae9566acbd920c8fdeedbf9a2920d1259b3af01466c", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/14/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/14/xoper.html\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/14/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "14", "link_map": {"/zh/docs/14/xoper.html": "/docs/14/xoper.html", "/zh/docs/14/sql-createoperator.html": "/docs/14/sql-createoperator.html", "/zh/docs/14/catalog-pg-operator.html": "/docs/14/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/14/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/14/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/14/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "7a6c6b93f2acfd4c3ba9bde22f9093571a652910ededca38eb615e07e4ec14e8", "content_hash": "dacba853bf9f53feff352bbfb69808de69698d67e16aaa908cc7620113c8c5f9", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "signature": "<=(timestamp,date) \u2192 bool", "tables_zh": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=14", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=14", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=14", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=14", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=14", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=14", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_multi_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "77531e62ed30180fca3990f31ecee43d1a140f3a459c18583e5158aa4b41435a", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "less than or equal", "/versions/14/facts/0/label": "Left operand", "/versions/14/facts/1/label": "Right operand", "/versions/14/facts/2/label": "Result type", "/versions/14/facts/3/label": "Implementing function", "/versions/14/facts/4/label": "Operator kind", "/versions/14/facts/5/label": "Hash join candidate", "/versions/14/facts/5/value": "no", "/versions/14/facts/6/label": "Merge join candidate", "/versions/14/facts/6/value": "no", "/versions/14/tables/0/title": "Declared operator-family membership", "/versions/14/related/0/label": "timestamp data type", "/versions/14/related/1/label": "date data type", "/versions/14/related/2/label": "bool data type", "/versions/14/related/3/label": "Commutator: >=(date,timestamp)", "/versions/14/related/4/label": "Negator: >(timestamp,date)", "/versions/14/related/5/label": "btree/datetime_ops family", "/versions/14/related/6/label": "brin/datetime_minmax_ops family", "/versions/14/related/7/label": "brin/datetime_minmax_multi_ops family", "/versions/14/sections/0/title": "Catalog interpretation", "/versions/14/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/14/tables/0/columns/1/label": "Family", "/versions/14/tables/0/columns/2/label": "Strategy", "/versions/14/tables/0/columns/3/label": "Purpose", "/versions/14/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "aa79fdfefa22d5efcff7d4117aa5e571404098d33e19d26e422996c07a3a209b", "canonical_center_text_hash": "dacba853bf9f53feff352bbfb69808de69698d67e16aaa908cc7620113c8c5f9"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/14/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/14/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/14/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "15": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=15", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=15", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=15", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=15", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=15", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=15", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": 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"function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "15", "text_hash": "9fefe49591202fa8f9a021bc55e20c484b040d9123cfdbfa81a097f4f5d47c8f", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": 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"<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/15/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/15/xoper.html\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/15/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "15", "link_map": {"/zh/docs/15/xoper.html": "/docs/15/xoper.html", "/zh/docs/15/sql-createoperator.html": "/docs/15/sql-createoperator.html", "/zh/docs/15/catalog-pg-operator.html": "/docs/15/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/15/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/15/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/15/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "7f03d1171caf731318c632dce9b845bc81676e356c94c7b04d79c9d5e08a36d7", "content_hash": "9fefe49591202fa8f9a021bc55e20c484b040d9123cfdbfa81a097f4f5d47c8f", "source_database": "center", "source_revision": 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"\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_multi_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "4865734bda46f48a054c1c554b2ff262358a48b562081c1f01a178a6df15e38b", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}], "language": "zh", "original_text": {"/versions/15/description/0": "less than or equal", "/versions/15/facts/0/label": "Left operand", "/versions/15/facts/1/label": "Right operand", "/versions/15/facts/2/label": "Result type", "/versions/15/facts/3/label": "Implementing function", "/versions/15/facts/4/label": "Operator kind", "/versions/15/facts/5/label": "Hash join candidate", "/versions/15/facts/5/value": "no", "/versions/15/facts/6/label": "Merge join candidate", "/versions/15/facts/6/value": "no", "/versions/15/tables/0/title": "Declared operator-family membership", "/versions/15/related/0/label": "timestamp data type", "/versions/15/related/1/label": "date data type", "/versions/15/related/2/label": "bool data type", "/versions/15/related/3/label": "Commutator: >=(date,timestamp)", "/versions/15/related/4/label": "Negator: >(timestamp,date)", "/versions/15/related/5/label": "btree/datetime_ops family", "/versions/15/related/6/label": "brin/datetime_minmax_ops family", "/versions/15/related/7/label": "brin/datetime_minmax_multi_ops family", "/versions/15/sections/0/title": "Catalog interpretation", "/versions/15/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/15/tables/0/columns/1/label": "Family", "/versions/15/tables/0/columns/2/label": "Strategy", "/versions/15/tables/0/columns/3/label": "Purpose", "/versions/15/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ff5af4ae3be036b5ca2d362f8d87a1aee399f8efe1e564dd2b9f0d8069af14e4", "canonical_center_text_hash": "9fefe49591202fa8f9a021bc55e20c484b040d9123cfdbfa81a097f4f5d47c8f"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/15/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/15/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/15/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "16": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=16", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=16", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=16", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=16", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=16", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=16", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=16", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=16", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=16", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=16", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=16", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=16", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=16", "label": "brin/datetime_minmax_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=16", "label": "brin/datetime_minmax_multi_ops \u5bb6\u65cf"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "16.15", "major": "16", "channel": "stable", "revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed", "source_sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed", "manual_fingerprint": "846fb006e9d590387203c1c65f671240bc5c30604c4e3084cf572817aacc19d0", "catalog_fingerprint": "70797d889dd8aeed77ae81092f99ab380e1109b54b0b7ca6fbf400e0a2111a70"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, {"url": "/docs/16/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 16 English manual: catalog-pg-operator.html", "sha256": "dc789ccf76b6bcbb9b1793858fe700431720a1e70f3261de2b3362ed78040476"}, {"url": "/docs/16/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 16 English manual: catalog-pg-amop.html", "sha256": "f580ac4a34d5f9d567834684e0c41b7df32a952e20a2fc11a9ce0964c2df7e9a"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/16/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "02d95efb1446334fba175d11e01003dfb262f8bcc99eed0895b2bcaf4b96a570", "fragment_sha256": "055859f49565ffd7a868611c7c95093c69a68a5a56fcc59ab7c1c73ddd98eccc", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b", "translated_from_revision": null}, "body_sha256": "ab4b775fedce0956f625dbf700e9062d9cb8001f01025e9c1248e2c328255f70", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "16", "text_hash": "e6369bccf7a1b5c86ed693be7433224e873d5c2becca9feeccbcadd644ee106a", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=16", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=16", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=16", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=16", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=16", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=16", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/16/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "02d95efb1446334fba175d11e01003dfb262f8bcc99eed0895b2bcaf4b96a570", "fragment_sha256": "055859f49565ffd7a868611c7c95093c69a68a5a56fcc59ab7c1c73ddd98eccc", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b", "translated_from_revision": null}, "body_sha256": "ab4b775fedce0956f625dbf700e9062d9cb8001f01025e9c1248e2c328255f70", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/16/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/16/xoper.html\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/16/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "16", "link_map": {"/zh/docs/16/xoper.html": "/docs/16/xoper.html", "/zh/docs/16/sql-createoperator.html": "/docs/16/sql-createoperator.html", "/zh/docs/16/catalog-pg-operator.html": "/docs/16/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/16/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/16/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/16/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "81cbe0785fc869ebc828e5ac8099ecae017c840a2fc8c0ec7399c3b214aae471", "content_hash": "e6369bccf7a1b5c86ed693be7433224e873d5c2becca9feeccbcadd644ee106a", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "signature": "<=(timestamp,date) \u2192 bool", "tables_zh": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=16", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=16", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=16", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=16", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=16", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=16", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_multi_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "ff2395afae4eb19cedbcb0acbd87a844078e82ba0722c2dbe9e7fa0c4c6503d4", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "less than or equal", "/versions/16/facts/0/label": "Left operand", "/versions/16/facts/1/label": "Right operand", "/versions/16/facts/2/label": "Result type", "/versions/16/facts/3/label": "Implementing function", "/versions/16/facts/4/label": "Operator kind", "/versions/16/facts/5/label": "Hash join candidate", "/versions/16/facts/5/value": "no", "/versions/16/facts/6/label": "Merge join candidate", "/versions/16/facts/6/value": "no", "/versions/16/tables/0/title": "Declared operator-family membership", "/versions/16/related/0/label": "timestamp data type", "/versions/16/related/1/label": "date data type", "/versions/16/related/2/label": "bool data type", "/versions/16/related/3/label": "Commutator: >=(date,timestamp)", "/versions/16/related/4/label": "Negator: >(timestamp,date)", "/versions/16/related/5/label": "btree/datetime_ops family", "/versions/16/related/6/label": "brin/datetime_minmax_ops family", "/versions/16/related/7/label": "brin/datetime_minmax_multi_ops family", "/versions/16/sections/0/title": "Catalog interpretation", "/versions/16/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/16/tables/0/columns/1/label": "Family", "/versions/16/tables/0/columns/2/label": "Strategy", "/versions/16/tables/0/columns/3/label": "Purpose", "/versions/16/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "73b8a55f47f289cc42ed1a526a24d67684f1a1f5016b20b29711ee830bacccdc", "canonical_center_text_hash": "e6369bccf7a1b5c86ed693be7433224e873d5c2becca9feeccbcadd644ee106a"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/16/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/16/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/16/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "17": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=17", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=17", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=17", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=17", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=17", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=17", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": 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"<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/17/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/17/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/17/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "17", "link_map": {"/zh/docs/17/xoper.html": "/docs/17/xoper.html", "/zh/docs/17/sql-createoperator.html": "/docs/17/sql-createoperator.html", "/zh/docs/17/catalog-pg-operator.html": "/docs/17/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/17/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/17/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/17/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "3f6632a2637d95a69f99ab8fba79084164f7cb7595db0ecc897c425e31e8c28a", "content_hash": "6efd13d082edaf83597a9b297a37b5b07b8904a5f330549966fc1b45c9035120", "source_database": "center", "source_revision": 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See CREATE OPERATOR and Section 36.14 for more information.", "/versions/17/tables/0/rows/0/purpose": "search", "/versions/17/tables/0/rows/1/purpose": "search", "/versions/17/tables/0/rows/2/purpose": "search", "/versions/17/tables/0/columns/0/label": "Index AM", "/versions/17/tables/0/columns/1/label": "Family", "/versions/17/tables/0/columns/2/label": "Strategy", "/versions/17/tables/0/columns/3/label": "Purpose", "/versions/17/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "4dbe6bbce67eea549ea1483dc7594a38a27a43d6d4dcede4b6f493eeec0ea308", "canonical_center_text_hash": "6efd13d082edaf83597a9b297a37b5b07b8904a5f330549966fc1b45c9035120"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/17/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/17/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/17/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "18": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=18", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=18", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=18", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=18", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=18", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=18", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=18", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=18", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "label": "brin/datetime_minmax_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "label": "brin/datetime_minmax_multi_ops \u5bb6\u65cf"}], "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/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 18 English manual: catalog-pg-operator.html", "sha256": "e0b1817914e5e8f9037955cd41e9a43584e9227fcc115784898ecdd9a6c0ecd6"}, {"url": "/docs/18/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 18 English manual: catalog-pg-amop.html", "sha256": "e65b90ee78eaf4b4da97ce5b08b972cee2e2660b882ec107be22eca47201f7d1"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/18/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "866547c7d8dd1d830de6c28cee33e2e3adb45288d1d47be58b03fbfb346e9d08", "fragment_sha256": "81aed42a595595a07ab55430c00e66eb6d05033809e63b1281b205ed73fb5610", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "6941a07824b6fe3da3ecf04af42e82624f586f311057eaf7131d88a9749bb9c5", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "18", "text_hash": "677cff6af9f50d3fcc7ba91244f0a3cad9351e3459a87b36aa8a57e67b7f7b95", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=18", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=18", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/18/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "866547c7d8dd1d830de6c28cee33e2e3adb45288d1d47be58b03fbfb346e9d08", "fragment_sha256": "81aed42a595595a07ab55430c00e66eb6d05033809e63b1281b205ed73fb5610", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "6941a07824b6fe3da3ecf04af42e82624f586f311057eaf7131d88a9749bb9c5", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/18/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/18/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/18/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "18", "link_map": {"/zh/docs/18/xoper.html": "/docs/18/xoper.html", "/zh/docs/18/sql-createoperator.html": "/docs/18/sql-createoperator.html", "/zh/docs/18/catalog-pg-operator.html": "/docs/18/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/18/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/18/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/18/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "5d6af4f7b0fc9cae879cf2f98efd4679a96c0a73c60c85d43b79bcb79c9cd03a", "content_hash": "677cff6af9f50d3fcc7ba91244f0a3cad9351e3459a87b36aa8a57e67b7f7b95", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "<=(timestamp,date) \u2192 bool", "tables_zh": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=18", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=18", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_multi_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "7cfcd945bbbd55377dea8d4bd57380014caceb4e83c5db3be16c23eb5991d68f", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "less than or equal", "/versions/18/facts/0/label": "Left operand", "/versions/18/facts/1/label": "Right operand", "/versions/18/facts/2/label": "Result type", "/versions/18/facts/3/label": "Implementing function", "/versions/18/facts/4/label": "Operator kind", "/versions/18/facts/5/label": "Hash join candidate", "/versions/18/facts/5/value": "no", "/versions/18/facts/6/label": "Merge join candidate", "/versions/18/facts/6/value": "no", "/versions/18/tables/0/title": "Declared operator-family membership", "/versions/18/related/0/label": "timestamp data type", "/versions/18/related/1/label": "date data type", "/versions/18/related/2/label": "bool data type", "/versions/18/related/3/label": "Commutator: >=(date,timestamp)", "/versions/18/related/4/label": "Negator: >(timestamp,date)", "/versions/18/related/5/label": "btree/datetime_ops family", "/versions/18/related/6/label": "brin/datetime_minmax_ops family", "/versions/18/related/7/label": "brin/datetime_minmax_multi_ops family", "/versions/18/sections/0/title": "Catalog interpretation", "/versions/18/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/18/tables/0/columns/1/label": "Family", "/versions/18/tables/0/columns/2/label": "Strategy", "/versions/18/tables/0/columns/3/label": "Purpose", "/versions/18/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ba9d4b04e0dc618d2ff90b15ef99b3538b24b7c9284a11f1bbfc67f1b31a0f50", "canonical_center_text_hash": "677cff6af9f50d3fcc7ba91244f0a3cad9351e3459a87b36aa8a57e67b7f7b95"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/18/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/18/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/18/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "center_zh_rendered": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/docs/18/sql-createoperator.html\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/docs/18/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/docs/18/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "19": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=19", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=19", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=19", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=19", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=19", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=19", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=19", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=19", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=19", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=19", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=19", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=19", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=19", 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"fragment_sha256": "cd0745f95f81b49375bd9a435dfd824847236ec83e7504d21cb92e48ccffeb3e", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "f7cecd71a011788898f604b07317bddc29074a2852d64dbf2244d5af2eaec456", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/19/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/19/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/19/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "19", "link_map": {"/zh/docs/19/xoper.html": "/docs/19/xoper.html", "/zh/docs/19/sql-createoperator.html": "/docs/19/sql-createoperator.html", "/zh/docs/19/catalog-pg-operator.html": "/docs/19/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/19/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/19/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/19/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "b8df0e78cff02300c391bd4bdc9bee32ca81222e3238e2cce633b484aac34ba5", "content_hash": "9fda8ba0b55dada8922d1fa8e0f1cd32e27fa96a65f64ac6ff738731d88b8eb1", "source_database": "center", "source_revision": 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See CREATE OPERATOR and Section 36.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/19/tables/0/columns/1/label": "Family", "/versions/19/tables/0/columns/2/label": "Strategy", "/versions/19/tables/0/columns/3/label": "Purpose", "/versions/19/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "4b79ba9928a0cc95a0b7b2116cccd0f25e68269939e204738cf27d12a244f7d2", "canonical_center_text_hash": "9fda8ba0b55dada8922d1fa8e0f1cd32e27fa96a65f64ac6ff738731d88b8eb1"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/19/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/19/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/19/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\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": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=20", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=20", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=20", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=20", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=20", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=20", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=20", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=20", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=20", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=20", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=20", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=20", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=20", "label": "brin/datetime_minmax_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=20", "label": "brin/datetime_minmax_multi_ops \u5bb6\u65cf"}], "release": {"ref": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "20devel", "major": "20", "channel": "devel", "revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "source_sha256": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "manual_fingerprint": "4afd3a8e29953000e176877e161458a2febaeaac5a5e16986595d3acc2418c7d", "catalog_fingerprint": "e519e6916a731ce8fb9bca3edb12410227f73e01ccd43fb6f5fb98276f08985f"}, "sources": [{"url": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, {"url": "/docs/devel/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 20 English manual: catalog-pg-operator.html", "sha256": "117e39bcb71e0d3fb201bdaf5071df520f8f8bc661ecefd758dc661956e2059a"}, {"url": "/docs/devel/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 20 English manual: catalog-pg-amop.html", "sha256": "21308426099a60febe495b5e6edd040a5b0f7cb87269121a33549a930433d19f"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/devel/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "9847268500c83015e677b19f0521e21dc09c8419c540f626cd33eb82b0d0a3a6", "fragment_sha256": "7d18837da9869c432f4fff0d59ca7f8694167876d0be212e9e11d74ab80a3d2e", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "4abce57da1a1e5a9af6729cdb655fefb36593a0866e803106ab4de70bde6ef64", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "<=(timestamp,date)", "locale": "zh-Hans", "source": {"key": "op-3c3d-timestamp-date", "locale": "zh-Hans", "version": "20", "text_hash": "d2e8b2f9da64a154c75ec56393ae7d7e06365c177cc908b633cb169496dedf59", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=20", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=20", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=20", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=20", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=20", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=20", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/devel/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "9847268500c83015e677b19f0521e21dc09c8419c540f626cd33eb82b0d0a3a6", "fragment_sha256": "7d18837da9869c432f4fff0d59ca7f8694167876d0be212e9e11d74ab80a3d2e", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "4abce57da1a1e5a9af6729cdb655fefb36593a0866e803106ab4de70bde6ef64", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/devel/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/devel/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/devel/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "20", "link_map": {"/zh/docs/devel/xoper.html": "/docs/devel/xoper.html", "/zh/docs/devel/sql-createoperator.html": "/docs/devel/sql-createoperator.html", "/zh/docs/devel/catalog-pg-operator.html": "/docs/devel/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/devel/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/devel/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/devel/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "356926f8f6d63c38d1c7e057477b1942cecb0ffecc9f24ac82ed7eab97f42cc8", "content_hash": "d2e8b2f9da64a154c75ec56393ae7d7e06365c177cc908b633cb169496dedf59", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "signature": "<=(timestamp,date) \u2192 bool", "tables_zh": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=20", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=20", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=20", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=20", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=20", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=20", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "source_oid": "2372", "description": ["\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002"], "memberships": [{"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-btree-datetime_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}, {"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "description": "less than or equal", "family_slug": "family-brin-datetime_minmax_multi_ops", "result_type": "bool", "sort_family": "", "operator_slug": "op-3c3d-timestamp-date", "sort_family_slug": ""}], "sections_zh": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "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/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "573e7b9d66caef244b2c03df37b3c4b39b92c1b0e7f32fa8bd3e09d17d5591be", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}], "language": "zh", "original_text": {"/summary": "less than or equal", "/category": "Date and time", "/versions/20/description/0": "less than or equal", "/versions/20/facts/0/label": "Left operand", "/versions/20/facts/1/label": "Right operand", "/versions/20/facts/2/label": "Result type", "/versions/20/facts/3/label": "Implementing function", "/versions/20/facts/4/label": "Operator kind", "/versions/20/facts/5/label": "Hash join candidate", "/versions/20/facts/5/value": "no", "/versions/20/facts/6/label": "Merge join candidate", "/versions/20/facts/6/value": "no", "/versions/20/tables/0/title": "Declared operator-family membership", "/versions/20/related/0/label": "timestamp data type", "/versions/20/related/1/label": "date data type", "/versions/20/related/2/label": "bool data type", "/versions/20/related/3/label": "Commutator: >=(date,timestamp)", "/versions/20/related/4/label": "Negator: >(timestamp,date)", "/versions/20/related/5/label": "btree/datetime_ops family", "/versions/20/related/6/label": "brin/datetime_minmax_ops family", "/versions/20/related/7/label": "brin/datetime_minmax_multi_ops family", "/versions/20/sections/0/title": "Catalog interpretation", "/versions/20/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/20/tables/0/columns/1/label": "Family", "/versions/20/tables/0/columns/2/label": "Strategy", "/versions/20/tables/0/columns/3/label": "Purpose", "/versions/20/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "cf9ff99403e9f447c04b762207185b969c9219efbee4703754b8e3b48cbc9025", "canonical_center_text_hash": "d2e8b2f9da64a154c75ec56393ae7d7e06365c177cc908b633cb169496dedf59"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/devel/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/devel/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/devel/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\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": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "tables": [{"key": "memberships", "rows": [{"family": {"url": "/wiki/opclass/family-btree-datetime_ops/?v=18", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=18", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "aliases": ["<=", "<=(timestamp,date)"], "related": [{"url": "/wiki/type/timestamp/?v=18", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/date/?v=18", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/bool/?v=18", "label": "bool \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/operator/op-3e3d-date-timestamp/?v=18", "label": "\u4ea4\u6362\u64cd\u4f5c\u7b26\uff1a>=(date,timestamp)"}, {"url": "/wiki/operator/op-3e-timestamp-date/?v=18", "label": "\u53d6\u53cd\u64cd\u4f5c\u7b26\uff1a>(timestamp,date)"}, {"url": "/wiki/opclass/family-btree-datetime_ops/?v=18", "label": "btree/datetime_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "label": "brin/datetime_minmax_ops \u5bb6\u65cf"}, {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "label": "brin/datetime_minmax_multi_ops \u5bb6\u65cf"}], "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": 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"same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/18/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "866547c7d8dd1d830de6c28cee33e2e3adb45288d1d47be58b03fbfb346e9d08", "fragment_sha256": "81aed42a595595a07ab55430c00e66eb6d05033809e63b1281b205ed73fb5610", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "6941a07824b6fe3da3ecf04af42e82624f586f311057eaf7131d88a9749bb9c5", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "bool"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_le_date(timestamp,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": "Binary"}, {"label": "\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5", "value": "\u5426"}, {"label": "\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5", "value": "\u5426"}], "operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": 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"/wiki/opclass/family-btree-datetime_ops/?v=18", "text": "datetime_ops"}, "method": {"url": "/wiki/indexam/btree/?v=18", "text": "B-tree"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_ops/?v=18", "text": "datetime_minmax_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}, {"family": {"url": "/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18", "text": "datetime_minmax_multi_ops"}, "method": {"url": "/wiki/indexam/brin/?v=18", "text": "BRIN"}, "purpose": "\u641c\u7d22", "strategy": "2", "sort_family": ""}], "title": "\u58f0\u660e\u7684\u64cd\u4f5c\u7b26\u5bb6\u65cf\u6210\u5458\u5173\u7cfb", "columns": [{"key": "method", "label": "\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5"}, {"key": "family", "label": "\u64cd\u4f5c\u7b26\u5bb6\u65cf"}, {"key": "strategy", "label": "\u7b56\u7565"}, {"key": "purpose", "label": "\u7528\u9014"}, {"key": "sort_family", "label": "\u6392\u5e8f\u5bb6\u65cf"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/18/catalog-pg-operator.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "catalog-pg-operator.html", "extraction": "concept-introduction", "source_hash": "866547c7d8dd1d830de6c28cee33e2e3adb45288d1d47be58b03fbfb346e9d08", "fragment_sha256": "81aed42a595595a07ab55430c00e66eb6d05033809e63b1281b205ed73fb5610", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "6941a07824b6fe3da3ecf04af42e82624f586f311057eaf7131d88a9749bb9c5", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code class=\"structname\">pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a class=\"xref\" href=\"/zh/docs/18/sql-createoperator.html\"><span class=\"refentrytitle\">CREATE OPERATOR</span></a> \u548c<a class=\"xref\" href=\"/zh/docs/18/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/18/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "summary": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "version": "18", "link_map": {"/zh/docs/18/xoper.html": "/docs/18/xoper.html", "/zh/docs/18/sql-createoperator.html": "/docs/18/sql-createoperator.html", "/zh/docs/18/catalog-pg-operator.html": "/docs/18/catalog-pg-operator.html"}, "body_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/18/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/18/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/18/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "body_sha256": "5d6af4f7b0fc9cae879cf2f98efd4679a96c0a73c60c85d43b79bcb79c9cd03a", "content_hash": "677cff6af9f50d3fcc7ba91244f0a3cad9351e3459a87b36aa8a57e67b7f7b95", "source_database": "center", "source_revision": 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>=(date,timestamp)", "/versions/18/related/4/label": "Negator: >(timestamp,date)", "/versions/18/related/5/label": "btree/datetime_ops family", "/versions/18/related/6/label": "brin/datetime_minmax_ops family", "/versions/18/related/7/label": "brin/datetime_minmax_multi_ops family", "/versions/18/sections/0/title": "Catalog interpretation", "/versions/18/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information.", "/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/columns/0/label": "Index AM", "/versions/18/tables/0/columns/1/label": "Family", "/versions/18/tables/0/columns/2/label": "Strategy", "/versions/18/tables/0/columns/3/label": "Purpose", "/versions/18/tables/0/columns/4/label": "Ordering family"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ba9d4b04e0dc618d2ff90b15ef99b3538b24b7c9284a11f1bbfc67f1b31a0f50", "canonical_center_text_hash": "677cff6af9f50d3fcc7ba91244f0a3cad9351e3459a87b36aa8a57e67b7f7b95"}, "description_zh": "\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "<=", "negator": ">(timestamp,date)", "function": "timestamp_le_date(timestamp,date)", "hash_join": "f", "left_type": "timestamp", "commutator": ">=(date,timestamp)", "merge_join": "f", "right_type": "date", "result_type": "bool"}, "memberships": [{"family": "datetime_minmax_multi_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_minmax_ops", "method": "brin", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}, {"family": "datetime_ops", "method": "btree", "purpose": "search", "operator": "<=(timestamp,date)", "strategy": "2", "left_type": "timestamp", "right_type": "date", "sort_family": ""}]}, "comparison_hash": "f2bf352c42f53c6b14218a3849424dc9d7b90b3a0ac66f76b3abfc62231f920e", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/18/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/18/xoper.html\" rel=\"nofollow\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/zh/docs/18/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>", "center_zh_rendered": "<p>\u5c0f\u4e8e\u6216\u7b49\u4e8e\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>&lt;=</code></dd><dt>\u5426\u5b9a\u8fd0\u7b97\u7b26</dt><dd><code>&gt;(timestamp,date)</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>timestamp_le_date(timestamp,date)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u4ea4\u6362\u8fd0\u7b97\u7b26</dt><dd><code>&gt;=(date,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>date</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>bool</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/docs/18/sql-createoperator.html\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/docs/18/xoper.html\">\u7b2c\u00a036.14\u00a0\u8282</a>\u3002\n  </p><p><a href=\"/docs/18/catalog-pg-operator.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "comparison": {"left": "13", "right": "14", "status": "changed", "diff": "--- PostgreSQL 13\n+++ PostgreSQL 14\n@@ -1,5 +1,15 @@\n {\n   \"memberships\": [\n+    {\n+      \"family\": \"datetime_minmax_multi_ops\",\n+      \"left_type\": \"timestamp\",\n+      \"method\": \"brin\",\n+      \"operator\": \"<=(timestamp,date)\",\n+      \"purpose\": \"search\",\n+      \"right_type\": \"date\",\n+      \"sort_family\": \"\",\n+      \"strategy\": \"2\"\n+    },\n     {\n       \"family\": \"datetime_minmax_ops\",\n       \"left_type\": \"timestamp\","}}