{"kind": "psql", "major": "18", "item": {"slug": "cmd-64-66", "name": "\\df", "name_zh": "", "category": "\u63cf\u8ff0\u6570\u636e\u5e93\u5bf9\u8c61", "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "aliases": ["\\df", "\\df+", "\\dfS", "\\dfS+", "\\dfSx", "\\dfSx+", "\\dfa", "\\dfa+", "\\dfaS", "\\dfaS+", "\\dfaSx", "\\dfaSx+", "\\dfan", "\\dfan+", "\\dfanS", "\\dfanS+", "\\dfanSx", "\\dfanSx+", "\\dfanp", "\\dfanp+", "\\dfanpS", "\\dfanpS+", "\\dfanpSx", "\\dfanpSx+", "\\dfanpt", "\\dfanpt+", "\\dfanptS", "\\dfanptS+", "\\dfanptSx", "\\dfanptSx+", "\\dfanptw", "\\dfanptw+", "\\dfanptwS", "\\dfanptwS+", "\\dfanptwSx", "\\dfanptwSx+", "\\dfanptwx", "\\dfanptwx+", "\\dfanptx", "\\dfanptx+", "\\dfanpw", "\\dfanpw+", "\\dfanpwS", "\\dfanpwS+", "\\dfanpwSx", "\\dfanpwSx+", "\\dfanpwx", "\\dfanpwx+", "\\dfanpx", "\\dfanpx+", "\\dfant", "\\dfant+", "\\dfantS", "\\dfantS+", "\\dfantSx", "\\dfantSx+", "\\dfantw", "\\dfantw+", "\\dfantwS", "\\dfantwS+", "\\dfantwSx", "\\dfantwSx+", "\\dfantwx", "\\dfantwx+", "\\dfantx", "\\dfantx+", "\\dfanw", "\\dfanw+", "\\dfanwS", "\\dfanwS+", "\\dfanwSx", "\\dfanwSx+", "\\dfanwx", "\\dfanwx+", "\\dfanx", "\\dfanx+", "\\dfap", "\\dfap+", "\\dfapS", "\\dfapS+", "\\dfapSx", "\\dfapSx+", "\\dfapt", "\\dfapt+", "\\dfaptS", "\\dfaptS+", "\\dfaptSx", "\\dfaptSx+", "\\dfaptw", "\\dfaptw+", "\\dfaptwS", "\\dfaptwS+", "\\dfaptwSx", "\\dfaptwSx+", "\\dfaptwx", "\\dfaptwx+", "\\dfaptx", "\\dfaptx+", "\\dfapw", "\\dfapw+", "\\dfapwS", "\\dfapwS+", "\\dfapwSx", "\\dfapwSx+", "\\dfapwx", "\\dfapwx+", "\\dfapx", "\\dfapx+", "\\dfat", "\\dfat+", "\\dfatS", "\\dfatS+", "\\dfatSx", "\\dfatSx+", "\\dfatw", "\\dfatw+", "\\dfatwS", "\\dfatwS+", "\\dfatwSx", "\\dfatwSx+", "\\dfatwx", "\\dfatwx+", "\\dfatx", "\\dfatx+", "\\dfaw", "\\dfaw+", "\\dfawS", "\\dfawS+", "\\dfawSx", "\\dfawSx+", "\\dfawx", "\\dfawx+", "\\dfax", "\\dfax+", "\\dfn", "\\dfn+", "\\dfnS", "\\dfnS+", "\\dfnSx", "\\dfnSx+", "\\dfnp", "\\dfnp+", "\\dfnpS", "\\dfnpS+", "\\dfnpSx", "\\dfnpSx+", "\\dfnpt", "\\dfnpt+", "\\dfnptS", "\\dfnptS+", "\\dfnptSx", "\\dfnptSx+", "\\dfnptw", "\\dfnptw+", "\\dfnptwS", "\\dfnptwS+", "\\dfnptwSx", "\\dfnptwSx+", "\\dfnptwx", "\\dfnptwx+", "\\dfnptx", "\\dfnptx+", "\\dfnpw", "\\dfnpw+", "\\dfnpwS", "\\dfnpwS+", "\\dfnpwSx", "\\dfnpwSx+", "\\dfnpwx", "\\dfnpwx+", "\\dfnpx", "\\dfnpx+", "\\dfnt", "\\dfnt+", "\\dfntS", "\\dfntS+", "\\dfntSx", "\\dfntSx+", "\\dfntw", "\\dfntw+", "\\dfntwS", "\\dfntwS+", "\\dfntwSx", "\\dfntwSx+", "\\dfntwx", "\\dfntwx+", "\\dfntx", "\\dfntx+", "\\dfnw", "\\dfnw+", "\\dfnwS", "\\dfnwS+", "\\dfnwSx", "\\dfnwSx+", "\\dfnwx", "\\dfnwx+", "\\dfnx", "\\dfnx+", "\\dfp", "\\dfp+", "\\dfpS", "\\dfpS+", "\\dfpSx", "\\dfpSx+", "\\dfpt", "\\dfpt+", "\\dfptS", "\\dfptS+", "\\dfptSx", "\\dfptSx+", "\\dfptw", "\\dfptw+", "\\dfptwS", "\\dfptwS+", "\\dfptwSx", "\\dfptwSx+", "\\dfptwx", "\\dfptwx+", "\\dfptx", "\\dfptx+", "\\dfpw", "\\dfpw+", "\\dfpwS", "\\dfpwS+", "\\dfpwSx", "\\dfpwSx+", "\\dfpwx", "\\dfpwx+", "\\dfpx", "\\dfpx+", "\\dft", "\\dft+", "\\dftS", "\\dftS+", "\\dftSx", "\\dftSx+", "\\dftw", "\\dftw+", "\\dftwS", "\\dftwS+", "\\dftwSx", "\\dftwSx+", "\\dftwx", "\\dftwx+", "\\dftx", "\\dftx+", "\\dfw", "\\dfw+", "\\dfwS", "\\dfwS+", "\\dfwSx", "\\dfwSx+", "\\dfwx", "\\dfwx+", "\\dfx", "\\dfx+"], "content_hash": "a8e0d67fd18fb445fb5fc5f974f20f88f23128600edade157017e5fbd016a1e0", "versions": {"10": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 10.23"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=10", "text": "\\df"}, "modifiers": "antwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=10", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "label": "10.23", "major": "10", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/10/postgresql-10-A4.pdf", "bytes": 12631706, "pages": 2591, "sha256": "34497ab9efb45c5bdf1bd11b9016b5451354feb462fa029cf74557a5fa5fbbc1", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/10/postgresql-10-US.pdf", "bytes": 12531684, "pages": 2724, "sha256": "429cc7133ddf4f97c560aa466dc9caea4b718721a8321e293357037cf0af4733", "built_at": "2026-09-26"}}, "tree": "10", "index": "index.html", "major": "10", "pages": 1085, "release": "10.23", "source_url": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "svg_assets": 0, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea", "evidence_kind": "English manual and source declarations", "source_sha256": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "sources": [{"url": "/docs/10/app-psql.html#APP-PSQL-META-COMMANDS", "file": "app-psql.html", "label": "10.23 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMANDS", "sha256": "9e11fe3148cb8c085808f632ed972aa4514332a67758a083a080169101eeb7a4"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS", "anchor": "APP-PSQL-META-COMMANDS", "locale": "zh-Hans", "version": "10", "build_id": 63, "page_key": "app-psql.html", "extraction": "exact-definition", "source_hash": "d8122755e2eb3b6ec41a78b0f6218b4c63e0caac5190724266155c8abf3676f5", "fragment_sha256": "cda5870cc1016187d42548c99023b0c256d5d29bfc15971a43fa454d5b01941e", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:62997ea80516ad012fbf6359de33f3b016b54c47e2df76e75606116b4baaf8e5", "translated_from_revision": null}, "body_sha256": "9ac1547655f3c44bafde7315b667decc37cf08335dc3c16dbccc8e8ff0fb7876", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 10.23"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"title": "\\df", "locale": "zh-Hans", "source": {"key": "cmd-64-66", "locale": "zh-Hans", "version": "10", "text_hash": "3d49b17e20f2b32ce22d6d63f95190a3c986cc52129f8607269736946515390a", "collection": "psql", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "payload": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 10.23"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=10", "text": "\\df"}, "modifiers": "antwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS", "anchor": "APP-PSQL-META-COMMANDS", "locale": "zh-Hans", "version": "10", "build_id": 63, "page_key": "app-psql.html", "extraction": "exact-definition", "source_hash": "d8122755e2eb3b6ec41a78b0f6218b4c63e0caac5190724266155c8abf3676f5", "fragment_sha256": "cda5870cc1016187d42548c99023b0c256d5d29bfc15971a43fa454d5b01941e", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:62997ea80516ad012fbf6359de33f3b016b54c47e2df76e75606116b4baaf8e5", "translated_from_revision": null}, "body_sha256": "9ac1547655f3c44bafde7315b667decc37cf08335dc3c16dbccc8e8ff0fb7876", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "sections": [], "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[antwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code class=\"literal\">\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div class=\"tip\"><h3 class=\"title\">\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code class=\"literal\">\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "version": "10", "link_map": {"/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/10/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "<p>psql \u547d\u4ee4 \\df[antwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code>\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div><h3>\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code>\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "ba6c6b37df8a3987ae05a060ed5a4a414b99ff9c4bc29a4002826502ff76c302", "content_hash": "3d49b17e20f2b32ce22d6d63f95190a3c986cc52129f8607269736946515390a", "source_database": "center", "source_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "modifiers": [{"command": "\\df", "modifiers": "antwS+"}], "signature": "\\df[antwS+] [ pattern ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=10", "text": "\\df"}, "modifiers": "antwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/10/app-psql.html", "method": "same-major semantic node", "sha256": "07e2383663e136e49c565dc43b76b773af4caa89393ce1854d32ec8cc15f2d3c", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[45]/div[1]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[45]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description.", "/versions/10/facts/0/label": "Client", "/versions/10/facts/1/label": "Case-sensitive spelling", "/versions/10/tables/0/title": "Spellings in this manual definition", "/versions/10/related/0/label": "psql command-line options and complete manual", "/versions/10/tables/0/columns/0/label": "Command", "/versions/10/tables/0/columns/1/label": "Documented suffix modifiers"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "a38ebad98980502f06a1545afdd9e2a3629b88f9881cf71a55ae4126f0153703", "canonical_center_text_hash": "3d49b17e20f2b32ce22d6d63f95190a3c986cc52129f8607269736946515390a"}, "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "antwS+"}], "signature": "\\df[antwS+] [ pattern ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description. Tip To look up functions taking arguments or returning values of a specific data type, use your pager's search capability to scroll through the \\df output."}, "comparison_hash": "770954cdae3e1d44e6fa7d5a7c820b35c721b067f8e157920814b754ef21c03d", "manual_language": "zh", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[antwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code>\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div><h3>\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code>\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "11": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 11.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=11", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=11", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "11.22", "major": "11", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/11/postgresql-11-A4.pdf", "bytes": 13057499, "pages": 2732, "sha256": "41d75855e610d0d9b8802b87dc5b080bef8d7e91c7cf69401fbf8d3cf801b4b5", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/11/postgresql-11-US.pdf", "bytes": 12961189, "pages": 2883, "sha256": "6a8899ef36935a5b7ed2b436207564a567a4ef1eb1c2200195876b8de4d4fa30", "built_at": "2026-09-26"}}, "tree": "11", "index": "index.html", "major": "11", "pages": 1125, "release": "11.22", "source_url": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "svg_assets": 0, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f", "evidence_kind": "English manual and source declarations", "source_sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "sources": [{"url": "/docs/11/app-psql.html#APP-PSQL-META-COMMANDS", "file": "app-psql.html", "label": "11.22 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMANDS", "sha256": "32c4d489e91e59715de2f7c3264fcccab3dd1eca54673dbfeac61304b0c54d4d"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/11/app-psql.html#APP-PSQL-META-COMMANDS", "anchor": "APP-PSQL-META-COMMANDS", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "app-psql.html", "extraction": "exact-definition", "source_hash": "5d6b0e557e9e1f0aed36485762d9b52d3f89da8c674d11a394a38facf6bc66b1", "fragment_sha256": "4bc548767a2cca83c4608028323360cab6e4a45aa18feebeab74d73c55da9ce9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "c9796cb6ebf3ff61223cdd3a866e6b5a4b8b76de7fc0460975e7acf9c32dc687", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 11.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"title": "\\df", "locale": "zh-Hans", "source": {"key": "cmd-64-66", "locale": "zh-Hans", "version": "11", "text_hash": "b509a4d11e28e6710ee2070ac2161543c13ed78217eb20faf96749eecfbf91be", "collection": "psql", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "payload": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 11.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=11", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/11/app-psql.html#APP-PSQL-META-COMMANDS", "anchor": "APP-PSQL-META-COMMANDS", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "app-psql.html", "extraction": "exact-definition", "source_hash": "5d6b0e557e9e1f0aed36485762d9b52d3f89da8c674d11a394a38facf6bc66b1", "fragment_sha256": "4bc548767a2cca83c4608028323360cab6e4a45aa18feebeab74d73c55da9ce9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "c9796cb6ebf3ff61223cdd3a866e6b5a4b8b76de7fc0460975e7acf9c32dc687", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "sections": [], "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code class=\"literal\">\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div class=\"tip\"><h3 class=\"title\">\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code class=\"literal\">\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/11/app-psql.html#APP-PSQL-META-COMMANDS\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "version": "11", "link_map": {"/zh/docs/11/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/11/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code>\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div><h3>\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code>\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/11/app-psql.html#APP-PSQL-META-COMMANDS\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "08606fc4a70b5c0289bfbb5fbc1ad61ef77df711579123d3b39ae609369d7b97", "content_hash": "b509a4d11e28e6710ee2070ac2161543c13ed78217eb20faf96749eecfbf91be", "source_database": "center", "source_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=11", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/11/app-psql.html", "method": "same-major semantic node", "sha256": "01339254dd1dc30d095af846d0b6a7c01f96338187a6fbb8cf45290d5941196b", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[45]/div[1]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[45]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description.", "/versions/11/facts/0/label": "Client", "/versions/11/facts/1/label": "Case-sensitive spelling", "/versions/11/tables/0/title": "Spellings in this manual definition", "/versions/11/related/0/label": "psql command-line options and complete manual", "/versions/11/tables/0/columns/0/label": "Command", "/versions/11/tables/0/columns/1/label": "Documented suffix modifiers"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "9a540c50d0c2ad3172de75143b676f0b9aa1cf317d00cee82d6e19578f86d53b", "canonical_center_text_hash": "b509a4d11e28e6710ee2070ac2161543c13ed78217eb20faf96749eecfbf91be"}, "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description. Tip To look up functions taking arguments or returning values of a specific data type, use your pager's search capability to scroll through the \\df output."}, "comparison_hash": "2d403d1675aceab1884f6e3c4956ed63d0a2ce22046e145e8414f4293c4aac26", "manual_language": "zh", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 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"translated_from_revision": null}, "body_sha256": "0cc442dcb030f6e630093e04a24250b937888560ff96b791ec8b1c6ecd28f43e", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 12.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"title": "\\df", "locale": "zh-Hans", "source": {"key": "cmd-64-66", "locale": "zh-Hans", "version": "12", "text_hash": "d2234d475e89306ddc0c529b4ca6137429f2790cb0b3c97ecca99eaced510c0f", "collection": "psql", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "payload": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 12.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=12", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/12/app-psql.html#APP-PSQL-META-COMMANDS", "anchor": "APP-PSQL-META-COMMANDS", "locale": "zh-Hans", "version": "12", "build_id": 65, "page_key": "app-psql.html", "extraction": "exact-definition", "source_hash": "8036faa7b026a8cae7af58d1fc5d09a60491dbad5f0fdada98b4bddf617018e4", "fragment_sha256": "4bc548767a2cca83c4608028323360cab6e4a45aa18feebeab74d73c55da9ce9", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "0cc442dcb030f6e630093e04a24250b937888560ff96b791ec8b1c6ecd28f43e", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "sections": [], "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code class=\"literal\">\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div class=\"tip\"><h3 class=\"title\">\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code class=\"literal\">\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/12/app-psql.html#APP-PSQL-META-COMMANDS\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "version": "12", "link_map": {"/zh/docs/12/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/12/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code>\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div><h3>\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code>\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/12/app-psql.html#APP-PSQL-META-COMMANDS\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "b9664825189e418d298b284fca755055924424ac1c214968bae594a891059b71", "content_hash": "d2234d475e89306ddc0c529b4ca6137429f2790cb0b3c97ecca99eaced510c0f", "source_database": "center", "source_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=12", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ 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To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. 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"snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "40cd2e2398f86794b7e7ac122e6b2cab56299649bed4c464a7a959eb87ab0548", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "sections": [], "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code class=\"literal\">\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div class=\"tip\"><h3 class=\"title\">\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code class=\"literal\">\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/13/app-psql.html#APP-PSQL-META-COMMANDS\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "version": "13", "link_map": {"/zh/docs/13/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/13/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code>\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div><h3>\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code>\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/13/app-psql.html#APP-PSQL-META-COMMANDS\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "0018cb00196f8c7655bf3f150f53bec784f8b8ed2810778f5196a36997705ecc", "content_hash": "7d9e0fe0d77e19b599e82c2a1afc890a7b30c5bfef944d6c4639a5bf3c91e908", "source_database": "center", "source_revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=13", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/13/app-psql.html", "method": "same-major semantic node", "sha256": "dd2bf63d81b9a9d3fc69c646197cfdc14a0b1bab1c9f0b98608d66554da4a261", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[53]/div[1]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[53]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description.", "/versions/13/facts/0/label": "Client", "/versions/13/facts/1/label": "Case-sensitive spelling", "/versions/13/tables/0/title": "Spellings in this manual definition", "/versions/13/related/0/label": "psql command-line options and complete manual", "/versions/13/tables/0/columns/0/label": "Command", "/versions/13/tables/0/columns/1/label": "Documented suffix modifiers"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "cf408c7a0bb69ee0786a103da491073a6a26484d145d10e5d854a28dca8d7290", "canonical_center_text_hash": "7d9e0fe0d77e19b599e82c2a1afc890a7b30c5bfef944d6c4639a5bf3c91e908"}, "description_zh": "\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002 \u63d0\u793a \u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8 \\df \u8f93\u51fa\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description. Tip To look up functions taking arguments or returning values of a specific data type, use your pager's search capability to scroll through the \\df output."}, "comparison_hash": "2d403d1675aceab1884f6e3c4956ed63d0a2ce22046e145e8414f4293c4aac26", "manual_language": "zh", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwS+] [ pattern ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\u5217\u51fa\u51fd\u6570\u53ca\u5176\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\u3002\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u4ec5\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u53ef\u5728\u547d\u4ee4\u4e2d\u6dfb\u52a0\u5bf9\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u5339\u914d\u8be5\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u9ed8\u8ba4\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code> \u4fee\u9970\u7b26\u53ef\u5305\u542b\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528<code>\\df+</code>\u5f62\u5f0f\uff0c\u8fd8\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u62e5\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002</p><div><h3>\u63d0\u793a</h3><p>\u8981\u67e5\u627e\u63a5\u53d7\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u53c2\u6570\u6216\u8fd4\u56de\u7279\u5b9a\u6570\u636e\u7c7b\u578b\u503c\u7684\u51fd\u6570\uff0c\u8bf7\u4f7f\u7528\u5206\u9875\u5668\u7684\u641c\u7d22\u529f\u80fd\u6d4f\u89c8<code>\\df</code> \u8f93\u51fa\u3002</p></div></dd><p><a href=\"/zh/docs/13/app-psql.html#APP-PSQL-META-COMMANDS\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "14": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 14.25"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=14", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=14", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.25/postgresql-14.25.tar.bz2", "label": "14.25", "major": "14", "channel": "stable", "manifest": {"major": "14", "release": "14.25", "source_url": "https://ftp.postgresql.org/pub/source/v14.25/postgresql-14.25.tar.bz2", "source_sha256": "09af980eb3a5d0a8ad7a34b95031b1988bbcd430c87700a62d6234c0ed97ae4c"}, "revision": "3458c6c18c8d4de5bbf0e6a5e72e5d2a815a2604b1cef6d1ec84491c75e57d2f", "evidence_kind": "English manual and source declarations", "source_sha256": "09af980eb3a5d0a8ad7a34b95031b1988bbcd430c87700a62d6234c0ed97ae4c"}, "sources": [{"url": "/docs/14/app-psql.html#APP-PSQL-META-COMMANDS", "file": "app-psql.html", "label": "14.25 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMANDS", "sha256": "ea99b69e21da51aab6382e82434cfb27bfb24f452abe7bbb4b1fb29319f081b0"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 14.25"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>", "body_sha256": "6000c3068e9ff81d54555b40b8441593a9c7ad24f48ad8280db265787d27d508", "content_hash": "26ce0a1b0bbe50c8490171f23ed0082bfe779763594161afb09869bf451ecc56", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "14", "documentation_release": "14.25"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=14", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=14", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "14.25"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description."}, "comparison_hash": "3df83359167a990f4597dc2486520fe3af8a4918b1e91fb0c0ee8706c1e7e493", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>", "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "ea99b69e21da51aab6382e82434cfb27bfb24f452abe7bbb4b1fb29319f081b0", "version": "14.25"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "f2eed17e1379e0b59f4bf5a92289a41d8ec44b349f2b069962f186547dc717ef", "version": "14.25"}], "release": "14.25", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "runtime_remeasured": false}}, "15": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 15.20"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=15", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=15", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v15.20/postgresql-15.20.tar.bz2", "label": "15.20", "major": "15", "channel": "stable", "manifest": {"major": "15", "release": "15.20", "source_url": "https://ftp.postgresql.org/pub/source/v15.20/postgresql-15.20.tar.bz2", "source_sha256": "30e65cbbb771a39b553ed2df7e65622e65647aed55dbc19bd0fe853ff0a08442"}, "revision": "6d870676353ceb5b021cc09084428ae294e90804236e38ffe556364784ee5fe5", "evidence_kind": "English manual and source declarations", "source_sha256": "30e65cbbb771a39b553ed2df7e65622e65647aed55dbc19bd0fe853ff0a08442"}, "sources": [{"url": "/docs/15/app-psql.html#APP-PSQL-META-COMMANDS", "file": "app-psql.html", "label": "15.20 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMANDS", "sha256": "b2a45145fd66cf7a28d7197594e8437e3b0310e88cdedf9d789c0fceefeebc27"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 15.20"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>", "body_sha256": "6000c3068e9ff81d54555b40b8441593a9c7ad24f48ad8280db265787d27d508", "content_hash": "5c6a4d66499143be08e340f0987e9616f709eaad1054c8ec01ef3109d544ede7", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "15", "documentation_release": "15.20"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=15", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=15", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "15.20"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, source code and description."}, "comparison_hash": "3df83359167a990f4597dc2486520fe3af8a4918b1e91fb0c0ee8706c1e7e493", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u6e90\u4ee3\u7801\u548c\u63cf\u8ff0\u3002\n        </p></dd>", "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "b2a45145fd66cf7a28d7197594e8437e3b0310e88cdedf9d789c0fceefeebc27", "version": "15.20"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "666ec9d596198e5b09316660b8bc7ce5cdbfbdb13053df6050aeea8838b8a855", "version": "15.20"}], "release": "15.20", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "runtime_remeasured": false}}, "16": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 16.16"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=16", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=16", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.16/postgresql-16.16.tar.bz2", "label": "16.16", "major": "16", "channel": "stable", "manifest": {"major": "16", "release": "16.16", "source_url": "https://ftp.postgresql.org/pub/source/v16.16/postgresql-16.16.tar.bz2", "source_sha256": "9d5cd8633043b75740d5d59749c6b7365e6aeb53c47098b1a5e80bb18f87881a"}, "revision": "871ba8026d5a12aa5884ac4e6e77369dacd4b2bdbd835b2305f7dbae4ee7b50d", "evidence_kind": "English manual and source declarations", "source_sha256": "9d5cd8633043b75740d5d59749c6b7365e6aeb53c47098b1a5e80bb18f87881a"}, "sources": [{"url": "/docs/16/app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "file": "app-psql.html", "label": "16.16 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMAND-DF-LC", "sha256": "6161d51dc66d54c8fd300944fed2bbae80efe4a532023b2e7771df5d94732330"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 16.16"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "body_sha256": "c77563fecd32fd3e3df503c639a5b3ab3d977791a3958a0d485bfbc20c85fec2", "content_hash": "fc1f2a955ddbc7fa35b64ac30b7ce7145c224739ffac53db1363ab726e228cb7", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "16", "documentation_release": "16.16"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=16", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=16", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "16.16"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf ."}, "comparison_hash": "314c1566f177cbcf646299c327832eaca6dceaa4b8d02010c0aa8c2c10b9f8b5", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "6161d51dc66d54c8fd300944fed2bbae80efe4a532023b2e7771df5d94732330", "version": "16.16"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "c0d23bdcbad8a5daf5f0b3f68e3cda09f59d69ebf5476444ecd369309fbd52c6", "version": "16.16"}], "release": "16.16", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "runtime_remeasured": false}}, "17": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 17.12"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=17", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=17", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.12/postgresql-17.12.tar.bz2", "label": "17.12", "major": "17", "channel": "stable", "manifest": {"major": "17", "release": "17.12", "source_url": "https://ftp.postgresql.org/pub/source/v17.12/postgresql-17.12.tar.bz2", "source_sha256": "9cf136a703d8ee2f83465c43be4e9e8e7930c82b0bfba13be7e2537be769ac55"}, "revision": "cdf1f58367ae5412a459972f45d3edc959901a849a12eaac1f08b050ba94663e", "evidence_kind": "English manual and source declarations", "source_sha256": "9cf136a703d8ee2f83465c43be4e9e8e7930c82b0bfba13be7e2537be769ac55"}, "sources": [{"url": "/docs/17/app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "file": "app-psql.html", "label": "17.12 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMAND-DF-LC", "sha256": "0a15b496eec7377c3e3cdbba9c3202ea984799cde158cf8c6826d339ff454a76"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 17.12"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "body_sha256": "c77563fecd32fd3e3df503c639a5b3ab3d977791a3958a0d485bfbc20c85fec2", "content_hash": "1c72b7774e84c557f32534ce8785eac1b6c9fda22b15157179df50ebf6a49c2d", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "17", "documentation_release": "17.12"}, "modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=17", "text": "\\df"}, "modifiers": "anptwS+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=17", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "17.12"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 \\df+ \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwS+"}], "signature": "\\df[anptwS+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf ."}, "comparison_hash": "314c1566f177cbcf646299c327832eaca6dceaa4b8d02010c0aa8c2c10b9f8b5", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u4f7f\u7528 <code class=\"literal\">\\df+</code> \u5f62\u5f0f\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "0a15b496eec7377c3e3cdbba9c3202ea984799cde158cf8c6826d339ff454a76", "version": "17.12"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "72c5d1a2c80c31246970e54811e0b6ea23a7c11cefe49b9e64efbb6b84781fa2", "version": "17.12"}], "release": "17.12", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "runtime_remeasured": false}}, "18": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 18.7"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=18", "text": "\\df"}, "modifiers": "anptwSx+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=18", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.7/postgresql-18.7.tar.bz2", "label": "18.7", "major": "18", "channel": "stable", "manifest": {"major": "18", "release": "18.7", "source_url": "https://ftp.postgresql.org/pub/source/v18.7/postgresql-18.7.tar.bz2", "source_sha256": "441dfae4280cae3e0425e5f876f80559fb0731c140f1aae22b3e5a54d0411bfd"}, "revision": "1b2d62b4845aa46374f2cb680f95d3392322cc8128646992ae4e18d0e7084915", "evidence_kind": "English manual and source declarations", "source_sha256": "441dfae4280cae3e0425e5f876f80559fb0731c140f1aae22b3e5a54d0411bfd"}, "sources": [{"url": "/docs/18/app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "file": "app-psql.html", "label": "18.7 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMAND-DF-LC", "sha256": "af50448485df02bdef2b72b8347192ba029c7082b8d0392ecb17db44ad533aaf"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 18.7"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "body_sha256": "827a9395154f1717592b4d4ee1c81808b481d6cf0ca02b371fbb650f1a81df6b", "content_hash": "f40bfcacfac0c3be5baa7771bf9229c35579db7786d893d6f9004c24ead2be8b", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "18", "documentation_release": "18.7"}, "modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=18", "text": "\\df"}, "modifiers": "anptwSx+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=18", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "18.7"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf ."}, "comparison_hash": "463540b1f5bb6a87e6284c97df28e516b177096935047a9a6bfb5009264a5927", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "af50448485df02bdef2b72b8347192ba029c7082b8d0392ecb17db44ad533aaf", "version": "18.7"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "cb475c53a16d9e06358f5e6c9c5649645db92568cfd319f230c62c9f57ae090b", "version": "18.7"}], "release": "18.7", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "runtime_remeasured": false}, "center_zh_rendered": "<dl><dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd></dl>"}, "19": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 19rc2"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=19", "text": "\\df"}, "modifiers": "anptwSx+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\df", "related": [{"url": "/wiki/tool/psql/?v=19", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19rc2/postgresql-19rc2.tar.bz2", "label": "19rc2", "major": "19", "channel": "preview", "manifest": {"major": "19", "release": "19rc2", "source_url": "https://ftp.postgresql.org/pub/source/v19rc2/postgresql-19rc2.tar.bz2", "source_sha256": "23a7bb862e4bac395c047305ed0084117b01e71255ce858b907cdcd78ce40351"}, "revision": "cd49a2a98fed04eec7571858125796f86e63613d1985225049f2aa8b0955f256", "evidence_kind": "English manual and source declarations", "source_sha256": "23a7bb862e4bac395c047305ed0084117b01e71255ce858b907cdcd78ce40351"}, "sources": [{"url": "/docs/19/app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "file": "app-psql.html", "label": "19rc2 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMAND-DF-LC", "sha256": "88aeb3d77ad0a535a6a363215f0ac18936c368ac157e694ad30fea3c1ee30218"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 19rc2"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "body_sha256": "827a9395154f1717592b4d4ee1c81808b481d6cf0ca02b371fbb650f1a81df6b", "content_hash": "24999772766afee56140f605d1930336a0d72b37fac676563346e7d42d9a7612", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "19", "documentation_release": "19rc2"}, "modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=19", "text": "\\df"}, "modifiers": "anptwSx+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=19", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "19rc2"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern 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\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf ."}, "comparison_hash": "463540b1f5bb6a87e6284c97df28e516b177096935047a9a6bfb5009264a5927", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span 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\u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "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": "5e06fe0541cd1f62a9fc1a66c342c19a2944ff3c98281bfbdb1d4a6d6d53fe2f", "previous_source_revision": "1bbbbf4133d426f0e4304010688d2984c30fb67df0cc3a61b3e37eb3f6f37833"}, "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "88aeb3d77ad0a535a6a363215f0ac18936c368ac157e694ad30fea3c1ee30218", "version": "19rc2"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "7c244fc95f382349e2864e47925de5baa9fd870b49efe597bdf30e0ffc365f68", 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[], "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwSx+] [ pattern [ arg_pattern ... ] ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd><p><a href=\"/zh/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-DF-LC\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "version": "20", "link_map": {"/zh/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-DF-LC": "/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-DF-LC"}, "body_html": "<p>psql \u547d\u4ee4 \\df[anptwSx+] [ pattern [ arg_pattern ... ] ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code>-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code>x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code>+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code>\\sf</code> \u67e5\u770b\u3002\n        </p></dd><p><a href=\"/zh/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-DF-LC\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "232fa2ebba26704d9e048d945e0b4fd08bd246b1cf407aaebbf3938260e59e69", "content_hash": "a735aace9fd7e6795428756426f5e8a27d6527f61c7785df85dc921be1e66198", "source_database": "center", "source_revision": "3cd0885bb4eccdbaac1a21177cc639e9031e54bd8ea6536c45224b5563354ce2"}, "modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=20", "text": "\\df"}, "modifiers": "anptwSx+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern 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"sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/devel/app-psql.html", "method": "same-major semantic node", "sha256": "1590b6e290ad21fe3ac1c1549628841ae426d1cd07a8f808789207878dbee5ab", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[11]/dl[0]/dd[61]"]}], "language": "zh", "original_text": {"/summary": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf .", "/category": "Describe database objects", "/versions/20/description/0": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf .", "/versions/20/facts/0/label": "Client", "/versions/20/facts/1/label": "Case-sensitive spelling", "/versions/20/tables/0/title": "Spellings in this manual definition", "/versions/20/related/0/label": "psql command-line options and complete manual", "/versions/20/tables/0/columns/0/label": "Command", "/versions/20/tables/0/columns/1/label": "Documented suffix modifiers"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "181acad3469362b870b41c7c008490c0cde3f3b53dddac10e00a5a716483134a", "canonical_center_text_hash": "a735aace9fd7e6795428756426f5e8a27d6527f61c7785df85dc921be1e66198"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf ."}, "comparison_hash": "463540b1f5bb6a87e6284c97df28e516b177096935047a9a6bfb5009264a5927", "manual_language": "zh", "description_zh_html": "<p>psql \u547d\u4ee4 \\df[anptwSx+] [ pattern [ arg_pattern ... ] ]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span>\u201c<span>agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span>\u201c<span>normal</span>\u201d</span>\u3001<span>\u201c<span>procedure</span>\u201d</span>\u3001<span>\u201c<span>trigger</span>\u201d</span>\u6216<span>\u201c<span>window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code>a</code>\u3001<code>n</code>\u3001<code>p</code>\u3001<code>t</code> \u6216 <code>w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code>-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code>S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code>x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code>+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code>\\sf</code> \u67e5\u770b\u3002\n        </p></dd><p><a href=\"/zh/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-DF-LC\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", 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"/wiki/tool/psql/?v=18", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.7/postgresql-18.7.tar.bz2", "label": "18.7", "major": "18", "channel": "stable", "manifest": {"major": "18", "release": "18.7", "source_url": "https://ftp.postgresql.org/pub/source/v18.7/postgresql-18.7.tar.bz2", "source_sha256": "441dfae4280cae3e0425e5f876f80559fb0731c140f1aae22b3e5a54d0411bfd"}, "revision": "1b2d62b4845aa46374f2cb680f95d3392322cc8128646992ae4e18d0e7084915", "evidence_kind": "English manual and source declarations", "source_sha256": "441dfae4280cae3e0425e5f876f80559fb0731c140f1aae22b3e5a54d0411bfd"}, "sources": [{"url": "/docs/18/app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "file": "app-psql.html", "label": "18.7 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMAND-DF-LC", "sha256": "af50448485df02bdef2b72b8347192ba029c7082b8d0392ecb17db44ad533aaf"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 18.7"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\df"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>"}, "summary": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "body_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "body_sha256": "827a9395154f1717592b4d4ee1c81808b481d6cf0ca02b371fbb650f1a81df6b", "content_hash": "f40bfcacfac0c3be5baa7771bf9229c35579db7786d893d6f9004c24ead2be8b", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "definition_version": "18", "documentation_release": "18.7"}, "modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-64-66/?v=18", "text": "\\df"}, "modifiers": "anptwSx+"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "related_zh": [{"url": "/wiki/tool/psql/?v=18", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "description": ["\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002"], "manual_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "manual_path": "app-psql.html#APP-PSQL-META-COMMAND-DF-LC", "sections_zh": [], "localization": {"status": "same-version-reviewed-manual", "language": "zh", "source_language": "en", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "documentation_release": "18.7"}, "description_zh": "\u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a \u201c agg \u201d \uff08\u805a\u5408\uff09\u3001 \u201c normal \u201d \u3001 \u201c procedure \u201d \u3001 \u201c trigger \u201d \u6216 \u201c window \u201d \u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd a \u3001 n \u3001 p \u3001 t \u6216 w \u3002\u5982\u679c\u6307\u5b9a\u4e86 pattern \uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 - \u5199\u6210\u6700\u540e\u4e00\u4e2a arg_pattern \u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 S \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 x \uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 + \uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 \\sf \u67e5\u770b\u3002", "comparison_data": {"modifiers": [{"command": "\\df", "modifiers": "anptwSx+"}], "signature": "\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]", "spellings": ["\\df"], "definition": "Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\sf ."}, "comparison_hash": "463540b1f5bb6a87e6284c97df28e516b177096935047a9a6bfb5009264a5927", "manual_language": "zh", "description_zh_html": "<dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd>", "documentation_revision": {"inputs": [{"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "en", "sha256": "af50448485df02bdef2b72b8347192ba029c7082b8d0392ecb17db44ad533aaf", "version": "18.7"}, {"file": "app-psql.html", "kind": "same-version-reviewed-manual", "locale": "zh-Hans", "sha256": "cb475c53a16d9e06358f5e6c9c5649645db92568cfd319f230c62c9f57ae090b", "version": "18.7"}], "release": "18.7", "source_revision": "pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552", "runtime_remeasured": false}, "center_zh_rendered": "<dl><dd><p>\n        \u5217\u51fa\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u3001\u53c2\u6570\u6570\u636e\u7c7b\u578b\u548c\u51fd\u6570\u7c7b\u578b\uff0c\u51fd\u6570\u7c7b\u578b\u5206\u4e3a<span class=\"quote\">\u201c<span class=\"quote\">agg</span>\u201d</span>\uff08\u805a\u5408\uff09\u3001<span class=\"quote\">\u201c<span class=\"quote\">normal</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">procedure</span>\u201d</span>\u3001<span class=\"quote\">\u201c<span class=\"quote\">trigger</span>\u201d</span>\u6216<span class=\"quote\">\u201c<span class=\"quote\">window</span>\u201d</span>\u3002\u8981\u53ea\u663e\u793a\u7279\u5b9a\u7c7b\u578b\u7684\u51fd\u6570\uff0c\u8bf7\u5728\u547d\u4ee4\u540e\u6dfb\u52a0\u76f8\u5e94\u7684\u5b57\u6bcd <code class=\"literal\">a</code>\u3001<code class=\"literal\">n</code>\u3001<code class=\"literal\">p</code>\u3001<code class=\"literal\">t</code> \u6216 <code class=\"literal\">w</code>\u3002\u5982\u679c\u6307\u5b9a\u4e86 <em class=\"replaceable\"><code>pattern</code></em>\uff0c\u5219\u53ea\u663e\u793a\u540d\u79f0\u4e0e\u6a21\u5f0f\u5339\u914d\u7684\u51fd\u6570\u3002\u4efb\u4f55\u9644\u52a0\u53c2\u6570\u90fd\u662f\u7c7b\u578b\u540d\u6a21\u5f0f\uff0c\u5206\u522b\u4e0e\u51fd\u6570\u7b2c\u4e00\u3001\u7b2c\u4e8c\u7b49\u53c2\u6570\u7684\u7c7b\u578b\u540d\u5339\u914d\u3002\uff08\u5339\u914d\u5230\u7684\u51fd\u6570\u53ef\u4ee5\u6bd4\u4f60\u6307\u5b9a\u7684\u53c2\u6570\u66f4\u591a\uff1b\u82e5\u8981\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u5c06\u8fde\u5b57\u7b26 <code class=\"literal\">-</code> \u5199\u6210\u6700\u540e\u4e00\u4e2a <em class=\"replaceable\"><code>arg_pattern</code></em>\u3002\uff09\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u663e\u793a\u7528\u6237\u521b\u5efa\u7684\u5bf9\u8c61\uff1b\u63d0\u4f9b\u6a21\u5f0f\u6216 <code class=\"literal\">S</code>\n        \u4fee\u9970\u7b26\u53ef\u5305\u62ec\u7cfb\u7edf\u5bf9\u8c61\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">x</code>\uff0c\u7ed3\u679c\u4f1a\u4ee5\u6269\u5c55\u6a21\u5f0f\u663e\u793a\u3002\u5982\u679c\u5728\u547d\u4ee4\u540d\u540e\u8ffd\u52a0 <code class=\"literal\">+</code>\uff0c\u5219\u4f1a\u663e\u793a\u6bcf\u4e2a\u51fd\u6570\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5305\u62ec\u6613\u53d8\u6027\u3001\u5e76\u884c\u5b89\u5168\u6027\u3001\u6240\u6709\u8005\u3001\u5b89\u5168\u5206\u7c7b\u3001\u662f\u5426\u9632\u6f0f\u3001\u8bbf\u95ee\u6743\u9650\u3001\u8bed\u8a00\u3001\u5185\u90e8\u540d\u79f0\uff08\u4ec5\u9002\u7528\u4e8e C \u548c internal \u51fd\u6570\uff09\u4ee5\u53ca\u63cf\u8ff0\u3002\u7279\u5b9a\u51fd\u6570\u7684\u6e90\u4ee3\u7801\u53ef\u901a\u8fc7 <code class=\"literal\">\\sf</code> \u67e5\u770b\u3002\n        </p></dd></dl>"}, "comparison": {"left": "17", "right": "18", "status": "changed", "diff": "--- PostgreSQL 17\n+++ PostgreSQL 18\n@@ -1,12 +1,12 @@\n {\n-  \"definition\": \"Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If the form \\\\df+ is used, additional information about each function is shown, including volatility, parallel safety, owner, security classification, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\\\sf .\",\n+  \"definition\": \"Lists functions, together with their result data types, argument data types, and function types, which are classified as \u201c agg \u201d (aggregate), \u201c normal \u201d , \u201c procedure \u201d , \u201c trigger \u201d , or \u201c window \u201d . To display only functions of specific type(s), add the corresponding letters a , n , p , t , or w to the command. If pattern is specified, only functions whose names match the pattern are shown. Any additional arguments are type-name patterns, which are matched to the type names of the first, second, and so on arguments of the function. (Matching functions can have more arguments than what you specify. To prevent that, write a dash - as the last arg_pattern .) By default, only user-created objects are shown; supply a pattern or the S modifier to include system objects. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, additional information about each function is shown, including volatility, parallel safety, owner, security classification, whether it is leakproof, access privileges, language, internal name (for C and internal functions only), and description. Source code for a specific function can be seen using \\\\sf .\",\n   \"modifiers\": [\n     {\n       \"command\": \"\\\\df\",\n-      \"modifiers\": \"anptwS+\"\n+      \"modifiers\": \"anptwSx+\"\n     }\n   ],\n-  \"signature\": \"\\\\df[anptwS+] [ pattern [ arg_pattern ... ] ]\",\n+  \"signature\": \"\\\\df[anptwSx+] [ pattern [ arg_pattern ... ] ]\",\n   \"spellings\": [\n     \"\\\\df\"\n   ]"}}