{"kind": "operator", "major": "18", "item": {"slug": "op-2d-date-date", "name": "-(date,date)", "name_zh": "", "category": "\u65e5\u671f\u4e0e\u65f6\u95f4", "summary": "\u76f8\u51cf\u3002", "aliases": ["-", "-(date,date)"], "content_hash": "9ea279c1995ba2d6f631154f98f88b78e8fa58e3439d3a19a4b51eeb7f445215", "versions": {"10": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=10", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=10", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "label": "10.23", "major": "10", "channel": "historical", "revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9", "source_sha256": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9", "manual_fingerprint": "113b870e3ff4b52320f34750da5e740800f3f6e4ed6f2fc00a0891944d1be7c2", "catalog_fingerprint": "dd2d5fd5e17d29184db5f6625f9f0f9b9d40ae7aa34b6ccf28ddbc8684bd4992"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, {"url": "/docs/10/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 10 English manual: catalog-pg-operator.html", "sha256": "1264240e312e88b54064702e9716b8d21fec2f06d1e3a9568f88a01f19f722df"}, {"url": "/docs/10/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 10 English manual: catalog-pg-amop.html", "sha256": "d5ce5a3be599e5506edbe3ff615674beb013720953f4979a44b6ecfd4cc24090"}], "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": "786a4730696810999f1bc87b70c53bbfd9f473d4b9455e3758788569e05d62d1", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "10", "text_hash": "5fc1463f958cfb05051bee89146f2d58f1eff0e07ab2d30c7ae8096cbccd1990", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "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": "786a4730696810999f1bc87b70c53bbfd9f473d4b9455e3758788569e05d62d1", "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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "\u76f8\u51cf\u3002", "version": "10", "link_map": {"/zh/docs/10/xoper.html": "/docs/10/xoper.html", "/zh/docs/10/sql-createoperator.html": "/docs/10/sql-createoperator.html", "/zh/docs/10/catalog-pg-operator.html": "/docs/10/catalog-pg-operator.html"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "9bcfd63234e83fe3194ade6509f6b2ae26127cedd62dce4d8f55380911cd4b23", "content_hash": "5fc1463f958cfb05051bee89146f2d58f1eff0e07ab2d30c7ae8096cbccd1990", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "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-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": "subtract", "/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/related/0/label": "date data type", "/versions/10/related/1/label": "int4 data type", "/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."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "0964fa01ee4457f3381c1dd381fc418f5a401a66bf0e36aeeb10fecf5e25e1ec", "canonical_center_text_hash": "5fc1463f958cfb05051bee89146f2d58f1eff0e07ab2d30c7ae8096cbccd1990"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=11", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=11", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "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": "ea55b18755ddb5bcc7a116f63fcda626a82d3075aee1e84dfc306cd59539bc88", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "11", "text_hash": "dbebb25a2ccf4475b4d3c569fa4e0651cf0838679a9f86d45031d7cf77276ece", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "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": "ea55b18755ddb5bcc7a116f63fcda626a82d3075aee1e84dfc306cd59539bc88", "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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "\u76f8\u51cf\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>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "0c8f0d8e3c894854288277b7bef93cef8093e3cd2705db04126b2dc86bdfc70d", "content_hash": "dbebb25a2ccf4475b4d3c569fa4e0651cf0838679a9f86d45031d7cf77276ece", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "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-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": "subtract", "/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/related/0/label": "date data type", "/versions/11/related/1/label": "int4 data type", "/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."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "8567274c52bde57ea5c99afa6da7fd76c154c23845f031c5baf45f7699ce92a9", "canonical_center_text_hash": "dbebb25a2ccf4475b4d3c569fa4e0651cf0838679a9f86d45031d7cf77276ece"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=12", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=12", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "label": "12.22", "major": "12", "channel": "historical", "revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b", "source_sha256": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b", "manual_fingerprint": "535df36baec2140f211303631c0a3f64e02d2673b9d34cb050d247997c94bd1e", "catalog_fingerprint": "1f423fd3c5fb61c039f8814116ce19dedbb2804bc864599818e88cbc4f5f284a"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, {"url": "/docs/12/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 12 English manual: catalog-pg-operator.html", "sha256": "e3f4410bbe926fcc950323b3358f3be85a42e2552afd5938562f725df6675cdb"}, {"url": "/docs/12/catalog-pg-amop.html", "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": "c33fca16da342ea2619695cadd22520339fd2119d1cec51b8ba60df4b02e4b14", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "12", "text_hash": "f41754e93b3726bb0e90895048110c8dd08fcceedb1972a3bcf765a212edb795", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "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": "c33fca16da342ea2619695cadd22520339fd2119d1cec51b8ba60df4b02e4b14", "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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "\u76f8\u51cf\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>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "24a621b85aed99be601480d5165219ed8ba86f86b0ed01f661b4a97c86139297", "content_hash": "f41754e93b3726bb0e90895048110c8dd08fcceedb1972a3bcf765a212edb795", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "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/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": "subtract", "/versions/12/facts/0/label": "Left operand", "/versions/12/facts/1/label": "Right operand", "/versions/12/facts/2/label": "Result type", "/versions/12/facts/3/label": "Implementing function", "/versions/12/facts/4/label": "Operator kind", "/versions/12/facts/5/label": "Hash join candidate", "/versions/12/facts/5/value": "no", "/versions/12/facts/6/label": "Merge join candidate", "/versions/12/facts/6/value": "no", "/versions/12/related/0/label": "date data type", "/versions/12/related/1/label": "int4 data type", "/versions/12/sections/0/title": "Catalog interpretation", "/versions/12/sections/0/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 37.14 for more information.", "/versions/12/sections/0/paragraphs/1": "Unused columns contain zeroes. For example, oprleft is zero for a prefix operator."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ed1ec015f942abe4b932f7fd0e84a4e46b43e3c6e13cf908571e32edfb131dc9", "canonical_center_text_hash": "f41754e93b3726bb0e90895048110c8dd08fcceedb1972a3bcf765a212edb795"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Source catalog description; no additional matching manual operator definition claimed", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,date)"}, {"label": "\u64cd\u4f5c\u7b26\u79cd\u7c7b", "value": 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"OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "89aa6a7065263d3c9d30626d8e7342ca3ac70976b20e91668344acceca844c49", "fragment_sha256": "cbf72f41ea367df7ceb89f64e7471f3e648ee2a38d00fe5c097f15e1c81911d9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "7ed21137ef32f3611f2e2bd456bf7e94ff691be0cfd121319a625731869d433e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "13", "text_hash": "ff87973f5fb97da8c495cb013ff4573af4a7243b1005f232c5e40952cf47c97f", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "89aa6a7065263d3c9d30626d8e7342ca3ac70976b20e91668344acceca844c49", "fragment_sha256": "cbf72f41ea367df7ceb89f64e7471f3e648ee2a38d00fe5c097f15e1c81911d9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "7ed21137ef32f3611f2e2bd456bf7e94ff691be0cfd121319a625731869d433e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.31.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "13", "link_map": {"/zh/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.31.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "93f83d751aa1f39b550de12dd3b6fc364504615f0d449ac7ad3f9a4e7df2a69f", "content_hash": "ff87973f5fb97da8c495cb013ff4573af4a7243b1005f232c5e40952cf47c97f", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", 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"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/related/0/label": "date data type", "/versions/13/related/1/label": "int4 data type", "/versions/13/sections/0/title": "English manual definition", "/versions/13/sections/1/title": "Catalog interpretation", "/versions/13/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/13/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 37.14 for more information.", "/versions/13/sections/1/paragraphs/1": "Unused columns contain zeroes. For example, oprleft is zero for a prefix operator."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "92cd483f949433b52e525475fcbe5b899bbfcd59916022adf3edf3d63c39e94a", "canonical_center_text_hash": "ff87973f5fb97da8c495cb013ff4573af4a7243b1005f232c5e40952cf47c97f"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.31.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=14", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=14", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "14.24", "major": "14", "channel": "stable", "revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897", "source_sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897", "manual_fingerprint": "1d055c6dc55d4defe2b6e9d0f842a47005487b21025b67e51d06721d3c122f71", "catalog_fingerprint": "9e0116f26e5ce870719efb77ef7b73e30c7928f8af27cbe87fdea32efe3811ef"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, {"url": "/docs/14/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 14 English manual: catalog-pg-operator.html", "sha256": "5e69fa82a7f0b49efb4ba5fc669e5bd35aeeede75682493bfc87e6035b23dd4d"}, {"url": "/docs/14/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 14 English manual: catalog-pg-amop.html", "sha256": "402b87d7fb1a313b096ba5349a676ae38d507e2eb98739d6ed7f0681e0b9a9a4"}, {"url": "/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 14 English manual: functions-datetime.html", "sha256": "b94572b7255d5cf51e8d55a3a7b26f69033636d93cb3bc69f37d587fd948ba7d"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "14", "build_id": 99, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "d15d322b1bebe46de97653d21b01d0cdec02d9ba5092df40c2e9dffa02a8a9ef", "fragment_sha256": "cbf72f41ea367df7ceb89f64e7471f3e648ee2a38d00fe5c097f15e1c81911d9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:87e6aa4fd6e1ec85c5f4a6de4f5647cfd9e5de734ca2c266d32b6d6192c662ef", "translated_from_revision": null}, "body_sha256": "364f2a92b655fe3272c8b8f45f982216e42e806eb901631ba968fb8f57ecb994", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "14", "text_hash": "18136581e239a40a20191b91557c9fdc090b622222d361c5fd8116e24155f309", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "14", "build_id": 99, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "d15d322b1bebe46de97653d21b01d0cdec02d9ba5092df40c2e9dffa02a8a9ef", "fragment_sha256": "cbf72f41ea367df7ceb89f64e7471f3e648ee2a38d00fe5c097f15e1c81911d9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:87e6aa4fd6e1ec85c5f4a6de4f5647cfd9e5de734ca2c266d32b6d6192c662ef", "translated_from_revision": null}, "body_sha256": "364f2a92b655fe3272c8b8f45f982216e42e806eb901631ba968fb8f57ecb994", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.31.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "14", "link_map": {"/zh/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.31.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "4f7a9a0fab51ff5e3158872ece33723a511ea7802d9a473cbbf3fe1b7f00c78b", "content_hash": "18136581e239a40a20191b91557c9fdc090b622222d361c5fd8116e24155f309", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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-operator.html", "method": "same-major semantic node", "sha256": "77531e62ed30180fca3990f31ecee43d1a140f3a459c18583e5158aa4b41435a", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/14/functions-datetime.html", "method": "same-major semantic node", "sha256": "ef27c43c7910bcbb1d95255585bd8f7619bbf0f92e4d53c86e1b887a300dee91", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "subtract", "/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/related/0/label": "date data type", "/versions/14/related/1/label": "int4 data type", "/versions/14/sections/0/title": "English manual definition", "/versions/14/sections/1/title": "Catalog interpretation", "/versions/14/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/14/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "e20191fca251329c3d47609bd8f390d013263cfd76d995ed927ba21971f335b5", "canonical_center_text_hash": "18136581e239a40a20191b91557c9fdc090b622222d361c5fd8116e24155f309"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.31.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/14/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=15", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=15", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "label": "15.19", "major": "15", "channel": "stable", "revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89", "source_sha256": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89", "manual_fingerprint": "f39c61e9facb5b9404c7d6d1cf494d83af0cc46146554a7fc40724eb882d24a9", "catalog_fingerprint": "1c332a5ccec7bfdd8ca19b55a0279b5bd6cb1dd5dcc6c5587a98a491a9b566a5"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, {"url": "/docs/15/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 15 English manual: catalog-pg-operator.html", "sha256": "3719563ca7bb28791116cb206b9998cd336d09fb4d4cc4a236b6447bcfd5cbb2"}, {"url": "/docs/15/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 15 English manual: catalog-pg-amop.html", "sha256": "53ced8770f19710869151ab02a9a6f0d97380981ca4bfe83752092bfb74a9e0c"}, {"url": "/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 15 English manual: functions-datetime.html", "sha256": "2953ab5aec34bdde2d9b80336fd570d92480c605211a77c67fdf615f050a2f85"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "15", "build_id": 101, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "207c64f137147283c16651e982f5e1d170441b62c9094bfa2989657b61bd4ce4", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:6bce1a2df9170cb1146a1411c5547190856638221a6539e618ee1016c9f493ad", "translated_from_revision": null}, "body_sha256": "3a7da3c0e8a81a3d8e84f64401cc05154ff72ef4a020521e3a778fbb14d30078", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "15", "text_hash": "5676f99d6a458acbad64f56d2b4ae79fe9215b358b5002474e35cf898999dd52", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "15", "build_id": 101, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "207c64f137147283c16651e982f5e1d170441b62c9094bfa2989657b61bd4ce4", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:6bce1a2df9170cb1146a1411c5547190856638221a6539e618ee1016c9f493ad", "translated_from_revision": null}, "body_sha256": "3a7da3c0e8a81a3d8e84f64401cc05154ff72ef4a020521e3a778fbb14d30078", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "15", "link_map": {"/zh/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "0c1018b3db559acdd4357ae30ba36e346e3264d0089d64007a30f3cdc8db4cc5", "content_hash": "5676f99d6a458acbad64f56d2b4ae79fe9215b358b5002474e35cf898999dd52", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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-operator.html", "method": "same-major semantic node", "sha256": "4865734bda46f48a054c1c554b2ff262358a48b562081c1f01a178a6df15e38b", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/15/functions-datetime.html", "method": "same-major semantic node", "sha256": "8ab3ea7c7ce56ce89c924153364dfced91c8ca2a2a672d1b1749a7c05ed4fe1e", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/15/description/0": "subtract", "/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/related/0/label": "date data type", "/versions/15/related/1/label": "int4 data type", "/versions/15/sections/0/title": "English manual definition", "/versions/15/sections/1/title": "Catalog interpretation", "/versions/15/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/15/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "d79e226097d6ced6485af865c130ecb13c13c8a79ef8d11676c5b8d662ae3767", "canonical_center_text_hash": "5676f99d6a458acbad64f56d2b4ae79fe9215b358b5002474e35cf898999dd52"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/15/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=16", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=16", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "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"}, {"url": "/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 16 English manual: functions-datetime.html", "sha256": "6b24c42e14c901068dbf86768fb6fd9aa1b3bf20f7289674170d394d918f381e"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "3a639d9630c05d40cb2315a003d1b67ee1a8e5c5d092eb3d746ec4da0c95f3e4", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b", "translated_from_revision": null}, "body_sha256": "d3dd40b827c35ea33652b06d457b51c3d2703ac931c1b8bba8aa5495341d29ff", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "16", "text_hash": "57e1cabe48dfcd52bd084b7c1d5e8f29f25f383533fc2c0ffcfeed80621fb4f4", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "3a639d9630c05d40cb2315a003d1b67ee1a8e5c5d092eb3d746ec4da0c95f3e4", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b", "translated_from_revision": null}, "body_sha256": "d3dd40b827c35ea33652b06d457b51c3d2703ac931c1b8bba8aa5495341d29ff", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "16", "link_map": {"/zh/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "255273f3ba900a8a854d4a774b98fa8afbf9508645d36352e8835220629bb389", "content_hash": "57e1cabe48dfcd52bd084b7c1d5e8f29f25f383533fc2c0ffcfeed80621fb4f4", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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-operator.html", "method": "same-major semantic node", "sha256": "ff2395afae4eb19cedbcb0acbd87a844078e82ba0722c2dbe9e7fa0c4c6503d4", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/16/functions-datetime.html", "method": "same-major semantic node", "sha256": "036a19f321e237b6bab2fb25dbf828a1f5b70e47e077edb684cb03091babf7f5", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "subtract", "/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/related/0/label": "date data type", "/versions/16/related/1/label": "int4 data type", "/versions/16/sections/0/title": "English manual definition", "/versions/16/sections/1/title": "Catalog interpretation", "/versions/16/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/16/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "abb894c4a8b78cf6b25e3320cf40c35d38a9ddcc123fe8ba24f91f2ef5c49bbd", "canonical_center_text_hash": "57e1cabe48dfcd52bd084b7c1d5e8f29f25f383533fc2c0ffcfeed80621fb4f4"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/16/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=17", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=17", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "source_sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "manual_fingerprint": "b55870f8e80e1114a92ac7bfc97f4a6fa0dee8e75935895252bb6e5b866cf187", "catalog_fingerprint": "e888e3474202df1c60a8e7b6bf9f2d83b3866a52d119521659b7a82787d3829d"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, {"url": "/docs/17/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 17 English manual: catalog-pg-operator.html", "sha256": "a66984c4fde91649a9677d33a2e002381cb07e99d72ad0971fa3251741030a69"}, {"url": "/docs/17/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 17 English manual: catalog-pg-amop.html", "sha256": "19b2fb110b348860f7fbcb6e0e0544e341f5645113c23f50920a54434d432359"}, {"url": "/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 17 English manual: functions-datetime.html", "sha256": "223a051b3f1abaa09a2780006a7f1d107bc39956b9fc1b06393c4322224f688e"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "17", "build_id": 105, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "2bc533e1c42ff64de358cbc81562e0f50eb0cb1b54fd79f509471a33e26571c6", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd", "translated_from_revision": null}, "body_sha256": "b4268a8b1d5e7c6fd98d030620f9c1142beded5aec14f98c534f90996b464acd", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "17", "text_hash": "99633ce945dcd9d4826216f6594774a43635d7e84c5ab7459640d55d7c919901", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "17", "build_id": 105, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "2bc533e1c42ff64de358cbc81562e0f50eb0cb1b54fd79f509471a33e26571c6", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd", "translated_from_revision": null}, "body_sha256": "b4268a8b1d5e7c6fd98d030620f9c1142beded5aec14f98c534f90996b464acd", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "17", "link_map": {"/zh/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "afbda3e0f22aec858cd8723384e755b26dea10a3b09661f9bd7ff9e7f4d01345", "content_hash": "99633ce945dcd9d4826216f6594774a43635d7e84c5ab7459640d55d7c919901", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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/17/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "f83afaba592d4bb686da0579943b49e4c821b3df0a02b82c5fab86e1d168a26e", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/17/functions-datetime.html", "method": "same-major semantic node", "sha256": "4f39b76d79e81eb8d91192a962066397d8ef362042bc1df1071e9de3fe310e4f", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "subtract", "/versions/17/facts/0/label": "Left operand", "/versions/17/facts/1/label": "Right operand", "/versions/17/facts/2/label": "Result type", "/versions/17/facts/3/label": "Implementing function", "/versions/17/facts/4/label": "Operator kind", "/versions/17/facts/5/label": "Hash join candidate", "/versions/17/facts/5/value": "no", "/versions/17/facts/6/label": "Merge join candidate", "/versions/17/facts/6/value": "no", "/versions/17/related/0/label": "date data type", "/versions/17/related/1/label": "int4 data type", "/versions/17/sections/0/title": "English manual definition", "/versions/17/sections/1/title": "Catalog interpretation", "/versions/17/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/17/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "b31b29745333585b49dc228ff63e98ac8aa1b722fbb1e663af6abb38779356d1", "canonical_center_text_hash": "99633ce945dcd9d4826216f6594774a43635d7e84c5ab7459640d55d7c919901"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/17/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=18", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=18", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "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"}, {"url": "/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 18 English manual: functions-datetime.html", "sha256": "17632ebd7f646daa96570bdd44ff4c7798176108b449fb8e7e16ca1f895a0e1f"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "2340eed8f18e5a5a727bb6bf8f828eedbab527da91082a214ea4f64a3b8750a6", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "21de30092bca371c7d2b9f5d3e2e5cc3d046527784eae0b4ed575337163d6d4e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "18", "text_hash": "ad7658fc4f274d6fdde107860c622a64d612a36fed499d8fd35da9f6d0afcac7", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "2340eed8f18e5a5a727bb6bf8f828eedbab527da91082a214ea4f64a3b8750a6", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "21de30092bca371c7d2b9f5d3e2e5cc3d046527784eae0b4ed575337163d6d4e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "18", "link_map": {"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "faa8f229c04908230f6d19d1a208a02bd5d897850e856f82b6801f281fadefc0", "content_hash": "ad7658fc4f274d6fdde107860c622a64d612a36fed499d8fd35da9f6d0afcac7", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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-operator.html", "method": "same-major semantic node", "sha256": "7cfcd945bbbd55377dea8d4bd57380014caceb4e83c5db3be16c23eb5991d68f", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/18/functions-datetime.html", "method": "same-major semantic node", "sha256": "a867d7766d0a6ccef71657fd2f3b1b6c62739c261de1d48c93401231896384df", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "subtract", "/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/related/0/label": "date data type", "/versions/18/related/1/label": "int4 data type", "/versions/18/sections/0/title": "English manual definition", "/versions/18/sections/1/title": "Catalog interpretation", "/versions/18/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/18/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "690afd62eb9e763704dce86b4ed5d1356cfb2854b20acd0c0ee412611ad06e61", "canonical_center_text_hash": "ad7658fc4f274d6fdde107860c622a64d612a36fed499d8fd35da9f6d0afcac7"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": 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\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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=19", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=19", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "release": {"ref": 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"sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "78a9531554a258ed556f45be48bdcbcae6c525b4f6f005c602901d1b3353c5bf", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "19", "text_hash": "86e0173e5e9ca5d02dcc34a7ecb8592ca5aa76671f6829945ce8cd8fda60ab4a", "collection": "operator", "dataset_hash": 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"date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "19", "link_map": {"/zh/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "9b60324dc6d096e3ce7692a0cfff4d6ef2f796f21baa5c450524f3fff71010a7", "content_hash": "86e0173e5e9ca5d02dcc34a7ecb8592ca5aa76671f6829945ce8cd8fda60ab4a", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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/19/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "9debafecc544409918e14c4ab4498c5b52d41808968dccb8a5874794ef8e4ac1", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/19/functions-datetime.html", "method": "same-major semantic node", "sha256": "4d20c64348bb6d7bc3afc5a8533222c3fc62fe7bd9a268541ac26cfc7b4b2dad", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/19/description/0": "subtract", "/versions/19/facts/0/label": "Left operand", "/versions/19/facts/1/label": "Right operand", "/versions/19/facts/2/label": "Result type", "/versions/19/facts/3/label": "Implementing function", "/versions/19/facts/4/label": "Operator kind", "/versions/19/facts/5/label": "Hash join candidate", "/versions/19/facts/5/value": "no", "/versions/19/facts/6/label": "Merge join candidate", "/versions/19/facts/6/value": "no", "/versions/19/related/0/label": "date data type", "/versions/19/related/1/label": "int4 data type", "/versions/19/sections/0/title": "English manual definition", "/versions/19/sections/1/title": "Catalog interpretation", "/versions/19/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/19/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "cf159eedb64ef997c439eee5c3feffa627a6aea790561ba37c45beeb977f2be6", "canonical_center_text_hash": "86e0173e5e9ca5d02dcc34a7ecb8592ca5aa76671f6829945ce8cd8fda60ab4a"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "aliases": ["-", "-(date,date)"], "related": [{"url": "/wiki/type/date/?v=20", "label": "date \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/int4/?v=20", "label": "int4 \u6570\u636e\u7c7b\u578b"}], "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"}, {"url": "/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 20 English manual: functions-datetime.html", "sha256": "43b5b90f194e4dd5d3e5ee2bc32a78ef25fca3c9e4b625e388310a1ab8b65bc0"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "a4885bc6d6e785bb12e30738dac15866f527a0685b86468240bf2a39aef4950d", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "b178d0c5e2b89e462181b17edf3fc1fee148056e7cdf309735fa1560890a2968", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "-(date,date)", "locale": "zh-Hans", "source": {"key": "op-2d-date-date", "locale": "zh-Hans", "version": "20", "text_hash": "bed7859dc68d8ba5f3a2f61cc89a3242fb20834ae2759680246a1e09be4ea563", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": [], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "a4885bc6d6e785bb12e30738dac15866f527a0685b86468240bf2a39aef4950d", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "b178d0c5e2b89e462181b17edf3fc1fee148056e7cdf309735fa1560890a2968", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "20", "link_map": {"/zh/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "2f82853dc0ea4675d4a7d06aaa195561b0d5f73933501654cd86235bd0c99e70", "content_hash": "bed7859dc68d8ba5f3a2f61cc89a3242fb20834ae2759680246a1e09be4ea563", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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-operator.html", "method": "same-major semantic node", "sha256": "573e7b9d66caef244b2c03df37b3c4b39b92c1b0e7f32fa8bd3e09d17d5591be", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/devel/functions-datetime.html", "method": "same-major semantic node", "sha256": "12464131e38fec8692a705c57742ec532fb4759eee2f763ab48a08675592fddc", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/summary": "subtract", "/category": "Date and time", "/versions/20/description/0": "subtract", "/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/related/0/label": "date data type", "/versions/20/related/1/label": "int4 data type", "/versions/20/sections/0/title": "English manual definition", "/versions/20/sections/1/title": "Catalog interpretation", "/versions/20/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/20/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. 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"<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/devel/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,date)"}, {"label": 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"anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "2340eed8f18e5a5a727bb6bf8f828eedbab527da91082a214ea4f64a3b8750a6", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "21de30092bca371c7d2b9f5d3e2e5cc3d046527784eae0b4ed575337163d6d4e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "date"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "int4"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "date_mi(date,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": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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"]}], 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"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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": "\u76f8\u51cf\u3002", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p class=\"title\"><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "\u76f8\u51cf\u3002", "version": "18", "link_map": {"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE": "/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE"}, "body_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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": "faa8f229c04908230f6d19d1a208a02bd5d897850e856f82b6801f281fadefc0", "content_hash": "ad7658fc4f274d6fdde107860c622a64d612a36fed499d8fd35da9f6d0afcac7", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "-(date,date) \u2192 int4", "tables_zh": [], "source_oid": "1099", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u5c06\u4e24\u4e2a\u65e5\u671f\u76f8\u51cf\uff0c\u5f97\u5230\u76f8\u9694\u7684\u5929\u6570", "date '2001-10-01' - date '2001-09-28' \u2192 3"]}, {"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-operator.html", "method": "same-major semantic node", "sha256": "7cfcd945bbbd55377dea8d4bd57380014caceb4e83c5db3be16c23eb5991d68f", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]"]}, {"url": "/docs/18/functions-datetime.html", "method": "same-major semantic node", "sha256": "a867d7766d0a6ccef71657fd2f3b1b6c62739c261de1d48c93401231896384df", "language": "zh", "matched_nodes": ["#FUNCTIONS-DATETIME/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "subtract", "/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/related/0/label": "date data type", "/versions/18/related/1/label": "int4 data type", "/versions/18/sections/0/title": "English manual definition", "/versions/18/sections/1/title": "Catalog interpretation", "/versions/18/sections/0/paragraphs/0": "Subtract dates, producing the number of days elapsed", "/versions/18/sections/1/paragraphs/0": "The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "690afd62eb9e763704dce86b4ed5d1356cfb2854b20acd0c0ee412611ad06e61", "canonical_center_text_hash": "ad7658fc4f274d6fdde107860c622a64d612a36fed499d8fd35da9f6d0afcac7"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "date_mi(date,date)", "hash_join": "f", "left_type": "date", "commutator": "", "merge_join": "f", "right_type": "date", "result_type": "int4"}, "memberships": []}, "comparison_hash": "afd3b416b170a945e9022a907084bd530a0ffbf0320501688848bc51b73875a1", "manual_language": "zh", "manual_semantics": "Exact operand/result signature matched", "description_zh_html": "<p>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/zh/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\" 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>\u76f8\u51cf\u3002</p><dl><dt>\u79cd\u7c7b</dt><dd><code>b</code></dd><dt>\u7b26\u53f7</dt><dd><code>-</code></dd><dt>\u5b9e\u73b0\u51fd\u6570</dt><dd><code>date_mi(date,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>date</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>int4</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p><strong>\u8868\u00a09.32.\u00a0\u65e5\u671f/\u65f6\u95f4\u64cd\u4f5c\u7b26</strong></p><p><a href=\"/docs/18/functions-datetime.html#OPERATORS-DATETIME-TABLE\">\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": "17", "right": "18", "status": "unchanged", "diff": ""}}