{"kind": "operator", "major": "18", "item": {"slug": "op-2d-timestamp-timestamp", "name": "-(timestamp,timestamp)", "name_zh": "", "category": "\u65e5\u671f\u4e0e\u65f6\u95f4", "summary": "\u76f8\u51cf\u3002", "aliases": ["-", "-(timestamp,timestamp)"], "content_hash": "aaf9dabaf8fe83438a5962a5014f0e8f862e13a09f87cfb3d57dcab5cf757df1", "versions": {"10": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=10", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=10", "label": "interval \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": "4d022f58d654f4cc776576143b8fa49e6959cc2d0c8861555319e195caeb9690", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.12 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "10", "text_hash": "dc7ac814e484d85d98455531eedc16dc8c68544642e29ba40b69d4c684cc010a", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "4d022f58d654f4cc776576143b8fa49e6959cc2d0c8861555319e195caeb9690", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "81a3b5f3908c0f7d59a618bed414eddc9a658da5f6a916a532d07c730822bffb", "content_hash": "dc7ac814e484d85d98455531eedc16dc8c68544642e29ba40b69d4c684cc010a", "source_database": "center", "source_revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "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": "timestamp data type", "/versions/10/related/1/label": "interval 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": "476b6ca5ab9ddf708386daeb1abeb1e9a989c0487b27818e53f5220366f5ce50", "canonical_center_text_hash": "dc7ac814e484d85d98455531eedc16dc8c68544642e29ba40b69d4c684cc010a"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/10/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/10/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.12\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/10/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "11": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=11", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=11", "label": "interval \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": "78f061c5931613c9d21e272299fa7257590fa29c633af95873125db8767a2149", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.13 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "11", "text_hash": "0581b42ae92c1116a86a5c0d03c4567b30c6c853de4dcbe10312cbd3f36d53e0", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "78f061c5931613c9d21e272299fa7257590fa29c633af95873125db8767a2149", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "396b40c4eda656e138a3d42a198d490f7541e7c47a4e9edec5d1be3556700a8e", "content_hash": "0581b42ae92c1116a86a5c0d03c4567b30c6c853de4dcbe10312cbd3f36d53e0", "source_database": "center", "source_revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "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": "timestamp data type", "/versions/11/related/1/label": "interval 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": "0843a7bd239fb0f7957369618325c6aa6d6828b5df0c2e79c87962ab8395d609", "canonical_center_text_hash": "0581b42ae92c1116a86a5c0d03c4567b30c6c853de4dcbe10312cbd3f36d53e0"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/11/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/11/xoper.html\" rel=\"nofollow\">\u7b2c\u00a038.13\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/11/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "12": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=12", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=12", "label": "interval \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": "12c24eaa34005bb08d382116282ff4eeab3cdda16d64e78f275de29b267bf608", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "12", "text_hash": "dacdffba6726397951c467b05d3ab850846e2d7029f4958ce22e9072b2584847", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "12c24eaa34005bb08d382116282ff4eeab3cdda16d64e78f275de29b267bf608", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "24bca516420b866bbf373589ce6780b356d76d9ac0bf11c338fef7cfb009afaa", "content_hash": "dacdffba6726397951c467b05d3ab850846e2d7029f4958ce22e9072b2584847", "source_database": "center", "source_revision": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "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": "timestamp data type", "/versions/12/related/1/label": "interval 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": "a5163e28357a4e70ec5159abb9eabc3877ccfbc7aa99441fab2a61f158dcd6b6", "canonical_center_text_hash": "dacdffba6726397951c467b05d3ab850846e2d7029f4958ce22e9072b2584847"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><p>\n   \u76ee\u5f55 <code>pg_operator</code> \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 <a href=\"/zh/docs/12/sql-createoperator.html\" rel=\"nofollow\"><span>CREATE OPERATOR</span></a> \u548c<a href=\"/zh/docs/12/xoper.html\" rel=\"nofollow\">\u7b2c\u00a037.14\u00a0\u8282</a>\u3002\n  </p><p>\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 <code>oprleft</code> \u4e3a\u96f6\u3002</p><p><a href=\"/zh/docs/12/catalog-pg-operator.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p><p>\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002</p>"}, "13": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=13", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=13", "label": "interval \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "13.23", "major": "13", "channel": "historical", "revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6", "source_sha256": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6", "manual_fingerprint": "2bbea71f4723fc9e4e58cfdb28368763f999de2800d45ade748f7c7546dfb9d3", "catalog_fingerprint": "df58d29b226fbb90326087233d7970032abdec1352373270449eeee324f84a35"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, {"url": "/docs/13/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 13 English manual: catalog-pg-operator.html", "sha256": "1a325d2fa41f711c0a7fa6b57e37e8e98a59f218e01112e0767c455c1b5818a1"}, {"url": "/docs/13/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 13 English manual: catalog-pg-amop.html", "sha256": "7a8e67f8dc59c305612c6d029fc8760c092f27203d5338c6db6c6d9b8aabc561"}, {"url": "/docs/13/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 13 English manual: functions-datetime.html", "sha256": "42c908d1e112980bb62d1c821e562ae6a41b5d886536e2734da16c4d65c58668"}], "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": "335dbae388260e29f687a345320b78856d2268a363d4f5cc0739620362d648d9", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "13", "text_hash": "e755aab463742eb8c56aa1bcbab7e71d6868fcaddad3dad174092a7a27a4851e", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "335dbae388260e29f687a345320b78856d2268a363d4f5cc0739620362d648d9", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "1ebdb50a63b8f31ca6d487b6551808657160242490bf9939e58004ee7999dd02", "content_hash": "e755aab463742eb8c56aa1bcbab7e71d6868fcaddad3dad174092a7a27a4851e", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 37.14 \u8282 \u3002", "\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/13/catalog-pg-operator.html", "method": "same-major semantic node", "sha256": "46fd38944eeaedaf5977bf7e555facfc61d03f97bee7df978680e2d60921724e", "language": "zh", "matched_nodes": ["#CATALOG-PG-OPERATOR/p[2]", "#CATALOG-PG-OPERATOR/p[5]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "subtract", "/versions/13/facts/0/label": "Left operand", "/versions/13/facts/1/label": "Right operand", "/versions/13/facts/2/label": "Result type", "/versions/13/facts/3/label": "Implementing function", "/versions/13/facts/4/label": "Operator kind", "/versions/13/facts/5/label": "Hash join candidate", "/versions/13/facts/5/value": "no", "/versions/13/facts/6/label": "Merge join candidate", "/versions/13/facts/6/value": "no", "/versions/13/related/0/label": "timestamp data type", "/versions/13/related/1/label": "interval data type", "/versions/13/sections/0/title": "English manual definition", "/versions/13/sections/1/title": "Catalog interpretation", "/versions/13/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "9155dc7d6f6192ef4b7082236ee8775c2023ce5ad2836858151d1f5b74466626", "canonical_center_text_hash": "e755aab463742eb8c56aa1bcbab7e71d6868fcaddad3dad174092a7a27a4851e"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=14", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=14", "label": "interval \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": "962dfabbe28518563802fe0e91940ebe646fd9e510e106c4d9f5d80d128af395", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "14", "text_hash": "596e57085aa3b928b777947203659cb21aafa9190c398a652fbb75bffaf9690f", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "962dfabbe28518563802fe0e91940ebe646fd9e510e106c4d9f5d80d128af395", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "e7708dc352915c8d6edf5286278f6c1f61fadbf44438879d161400a73d6e3233", "content_hash": "596e57085aa3b928b777947203659cb21aafa9190c398a652fbb75bffaf9690f", "source_database": "center", "source_revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/14/related/1/label": "interval data type", "/versions/14/sections/0/title": "English manual definition", "/versions/14/sections/1/title": "Catalog interpretation", "/versions/14/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "eca4d9e8d301b3d3628bd36ccb4d362fdc7b32c26a56e2490db0bdaa10e0bc57", "canonical_center_text_hash": "596e57085aa3b928b777947203659cb21aafa9190c398a652fbb75bffaf9690f"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=15", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=15", "label": "interval \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": "dd5ac67fbc2f38ebb8062d29600ab36e2a35eb0d67fb5d787a88fb05d392f77e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "15", "text_hash": "aae98d9eb24b1443b884cd60630ddf5050e18fa55a51129c3b2dde0816158ba3", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "dd5ac67fbc2f38ebb8062d29600ab36e2a35eb0d67fb5d787a88fb05d392f77e", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "35f7722bba17ae281b7172487a6a2933d145a6914b2d1a4e3c9a05c53a64f8de", "content_hash": "aae98d9eb24b1443b884cd60630ddf5050e18fa55a51129c3b2dde0816158ba3", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/15/related/1/label": "interval data type", "/versions/15/sections/0/title": "English manual definition", "/versions/15/sections/1/title": "Catalog interpretation", "/versions/15/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "a209a4de47bd230e955a13a6d411678f57440fc55cf14de4311bc686a03cc4c0", "canonical_center_text_hash": "aae98d9eb24b1443b884cd60630ddf5050e18fa55a51129c3b2dde0816158ba3"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=16", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=16", "label": "interval \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": "db548d77db4837cc8a0aabc9eba80581d95ee67d261a86cb24d4671964d4a75d", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 38.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "16", "text_hash": "eee27d59843733fe29dbda5fb5cd19ec4aecd79dce9a19319fc741fd566c3cb6", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "db548d77db4837cc8a0aabc9eba80581d95ee67d261a86cb24d4671964d4a75d", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "32f48676b412516e18ed40dd42de21d1bf34ecdd76efafc7a9a7b9256a82c3c6", "content_hash": "eee27d59843733fe29dbda5fb5cd19ec4aecd79dce9a19319fc741fd566c3cb6", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/16/related/1/label": "interval data type", "/versions/16/sections/0/title": "English manual definition", "/versions/16/sections/1/title": "Catalog interpretation", "/versions/16/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "55f710bfb324453c4f0e5e00a9a527dd09d9f3953f31bf3f6c0fecf0d4299614", "canonical_center_text_hash": "eee27d59843733fe29dbda5fb5cd19ec4aecd79dce9a19319fc741fd566c3cb6"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=17", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=17", "label": "interval \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": "c9af1c48f06205b8911f380a7961230796620a7399403a4d2f17c68c6f02abfc", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "17", "text_hash": "100e064df44cc09519415ad4b7e46f9f0e06d73e51df3c4deb6000af7425e394", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "c9af1c48f06205b8911f380a7961230796620a7399403a4d2f17c68c6f02abfc", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "b6df0e225d13105edac744c3f8d9926ea477b2c5dfe07fe761012177b18a9092", "content_hash": "100e064df44cc09519415ad4b7e46f9f0e06d73e51df3c4deb6000af7425e394", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/17/related/1/label": "interval data type", "/versions/17/sections/0/title": "English manual definition", "/versions/17/sections/1/title": "Catalog interpretation", "/versions/17/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "b974500cacb8f84dc027a4ee62b9bd894f1022ffc040ef52547aa7d476198be2", "canonical_center_text_hash": "100e064df44cc09519415ad4b7e46f9f0e06d73e51df3c4deb6000af7425e394"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=18", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=18", "label": "interval \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": "cb1fbec0ec7c2b464756327bf49537d6b0839b44386c5bf1256e9dc2e91f938b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "18", "text_hash": "5774f74e58f8c13464c0b9d779a4999e092ebf686687ef48deae01e840d6f924", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "cb1fbec0ec7c2b464756327bf49537d6b0839b44386c5bf1256e9dc2e91f938b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "80043652b647f844c6deccc173967bc970930a21b04e8fdd210df2e64cc9e978", "content_hash": "5774f74e58f8c13464c0b9d779a4999e092ebf686687ef48deae01e840d6f924", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/18/related/1/label": "interval data type", "/versions/18/sections/0/title": "English manual definition", "/versions/18/sections/1/title": "Catalog interpretation", "/versions/18/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "9fa8c8ea64b7c47b2941212f65f0013d45275f5269c77d12e1201750ee789eac", "canonical_center_text_hash": "5774f74e58f8c13464c0b9d779a4999e092ebf686687ef48deae01e840d6f924"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>"}, "19": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=19", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=19", "label": "interval \u6570\u636e\u7c7b\u578b"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19rc1/postgresql-19rc1.tar.bz2", "label": "19rc1", "major": "19", "channel": "preview", "revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "source_sha256": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "manual_fingerprint": "63afc6091780ed5e52920ff9ef5adb6aa7dfcc82f8f413ed36ad46095788488d", "catalog_fingerprint": "da7a8a4e03b72cd120b91ffdff4265e065ccad9eab9964fc3eb1279a58464eb8"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v19rc1/postgresql-19rc1.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, {"url": "/docs/19/catalog-pg-operator.html", "path": "catalog-pg-operator.html", "label": "PostgreSQL 19 English manual: catalog-pg-operator.html", "sha256": "d72adfa2e7a4b73f626c90a03915426b5843f7b75a31fac47c12448b822dbe3b"}, {"url": "/docs/19/catalog-pg-amop.html", "path": "catalog-pg-amop.html", "label": "PostgreSQL 19 English manual: catalog-pg-amop.html", "sha256": "ff953e362a227387990b27226aff52dfd10f5f25b408d1bac8fa3e50bb45d00f"}, {"url": "/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE", "path": "functions-datetime.html", "label": "PostgreSQL 19 English manual: functions-datetime.html", "sha256": "201f277edc1877d03ebfb32b8a5cfc2f2c2f1302e51639eea55f5fd1e89cf7e5"}], "zh_from": {"kind": "same-version-chinese-manual-with-authored-translation-of-source-description", "manual": {"url": "/zh/docs/19/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "19", "build_id": 109, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "05c8aebc4241e23dc39cb1ebd9cc40029d8d9c4381db19a2cdb1b357e7352c11", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "9ee481b1e2084e67f8a4263eeff2ed9bb85393cedb9208976f175599d33a645b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "19", "text_hash": "744738f5ed3c8257ba2e089637d59c974b25883eb362ba9324633d9dd46e970a", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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/19/functions-datetime.html#OPERATORS-DATETIME-TABLE", "anchor": "OPERATORS-DATETIME-TABLE", "locale": "zh-Hans", "version": "19", "build_id": 109, "page_key": "functions-datetime.html", "extraction": "concept-introduction", "source_hash": "05c8aebc4241e23dc39cb1ebd9cc40029d8d9c4381db19a2cdb1b357e7352c11", "fragment_sha256": "7290e47fb56c7d37f015a62340d530293e16381ca67cefb9ee62ffd5159301cd", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "9ee481b1e2084e67f8a4263eeff2ed9bb85393cedb9208976f175599d33a645b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "6cb9260e9d51021a72c57e3de9d84112366db839d64db4a61129b630d7dcd91a", "content_hash": "744738f5ed3c8257ba2e089637d59c974b25883eb362ba9324633d9dd46e970a", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/19/related/1/label": "interval data type", "/versions/19/sections/0/title": "English manual definition", "/versions/19/sections/1/title": "Catalog interpretation", "/versions/19/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "33e21f684eeabb4e2293f769147dd820a664383894ff83b9eda06900e0c0f399", "canonical_center_text_hash": "744738f5ed3c8257ba2e089637d59c974b25883eb362ba9324633d9dd46e970a"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=20", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=20", "label": "interval \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": "35ed13af051193dd2eeb5074dd1d820df59026209acc838f9eb041aa700816a9", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "20", "text_hash": "7da39455a34fdaf077e4f21e2309e772eed2d141cf8675526d05097f7621dce7", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "35ed13af051193dd2eeb5074dd1d820df59026209acc838f9eb041aa700816a9", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "07c56ba0096824a0ec67d84515f259172e2f64bccf174ad60533a797985c7881", "content_hash": "7da39455a34fdaf077e4f21e2309e772eed2d141cf8675526d05097f7621dce7", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/20/related/1/label": "interval data type", "/versions/20/sections/0/title": "English manual definition", "/versions/20/sections/1/title": "Catalog interpretation", "/versions/20/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/versions/20/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": "f48e680fac3ddcb27a7221162f467b73f9bdfe1b07689860c102dcab2ccfbbfa", "canonical_center_text_hash": "7da39455a34fdaf077e4f21e2309e772eed2d141cf8675526d05097f7621dce7"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": ["-", "-(timestamp,timestamp)"], "related": [{"url": "/wiki/type/timestamp/?v=18", "label": "timestamp \u6570\u636e\u7c7b\u578b"}, {"url": "/wiki/type/interval/?v=18", "label": "interval \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": "cb1fbec0ec7c2b464756327bf49537d6b0839b44386c5bf1256e9dc2e91f938b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"title": "\u76ee\u5f55\u8bb0\u5f55\u89e3\u8bfb", "paragraphs": ["\u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c \u7b2c 36.14 \u8282 \u3002"]}], "center_zh": {"title": "-(timestamp,timestamp)", "locale": "zh-Hans", "source": {"key": "op-2d-timestamp-timestamp", "locale": "zh-Hans", "version": "18", "text_hash": "5774f74e58f8c13464c0b9d779a4999e092ebf686687ef48deae01e840d6f924", "collection": "operator", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u5de6\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u53f3\u64cd\u4f5c\u6570", "value": "timestamp"}, {"label": "\u8fd4\u56de\u7c7b\u578b", "value": "interval"}, {"label": "\u5b9e\u73b0\u51fd\u6570", "value": "timestamp_mi(timestamp,timestamp)"}, {"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": "cb1fbec0ec7c2b464756327bf49537d6b0839b44386c5bf1256e9dc2e91f938b", "runtime_rerun": false, "authored_translation": "authored-translation-of-source-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": "80043652b647f844c6deccc173967bc970930a21b04e8fdd210df2e64cc9e978", "content_hash": "5774f74e58f8c13464c0b9d779a4999e092ebf686687ef48deae01e840d6f924", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "-(timestamp,timestamp) \u2192 interval", "tables_zh": [], "source_oid": "2067", "description": ["\u76f8\u51cf\u3002"], "memberships": [], "sections_zh": [{"title": "\u82f1\u6587\u624b\u518c\u5b9a\u4e49", "paragraphs": ["\u65f6\u95f4\u6233\u76f8\u51cf\uff08\u5c06 24 \u5c0f\u65f6\u95f4\u9694\u8f6c\u6362\u4e3a\u5929\uff0c\u7c7b\u4f3c justify_hours()\uff09", "timestamp '2001-09-29 03:00' - timestamp '2001-07-27 12:00' \u2192 63 days 15:00:00"]}, {"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]"]}], "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": "timestamp data type", "/versions/18/related/1/label": "interval data type", "/versions/18/sections/0/title": "English manual definition", "/versions/18/sections/1/title": "Catalog interpretation", "/versions/18/sections/0/paragraphs/0": "Subtract timestamps (converting 24-hour intervals into days, similarly to justify_hours() )", "/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": "9fa8c8ea64b7c47b2941212f65f0013d45275f5269c77d12e1201750ee789eac", "canonical_center_text_hash": "5774f74e58f8c13464c0b9d779a4999e092ebf686687ef48deae01e840d6f924"}, "description_zh": "\u76f8\u51cf\u3002", "comparison_data": {"operator": {"kind": "b", "symbol": "-", "negator": "", "function": "timestamp_mi(timestamp,timestamp)", "hash_join": "f", "left_type": "timestamp", "commutator": "", "merge_join": "f", "right_type": "timestamp", "result_type": "interval"}, "memberships": []}, "comparison_hash": "72e25d7974fa31b31b1d60b76608a5aea15677a67261d29491810704983246a3", "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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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>timestamp_mi(timestamp,timestamp)</code></dd><dt>\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5</dt><dd><code>\u5426</code></dd><dt>\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b</dt><dd><code>timestamp</code></dd><dt>\u7ed3\u679c\u7c7b\u578b</dt><dd><code>interval</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": ""}}