{"Entry":{"collection":"psql","key":"cmd-64-58","name":"\\dX","aliases":["\\dX","\\dX+","\\dXx","\\dXx+"],"metadata":{"aliases":["\\dX","\\dX+","\\dXx","\\dXx+"],"category":"Describe database objects","content_hash":"77e98b623d93139bc9cee9d50c5692eb3cd94897a7a31fce3b0a7182e3d1f855","imported_at":"2026-09-30T00:40:44.836035+08:00","name":"\\dX","name_zh":"","slug":"cmd-64-58","summary":"Lists extended statistics. If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode. 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If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode.","BodyHTML":"\u003cdiv\u003e\u003cdl\u003e\u003cdt id=\"APP-PSQL-META-COMMAND-DX-UC\"\u003e\u003cspan\u003e\u003ccode\u003e\\dX[x] [ \u003ca href=\"/docs/18/app-psql.html#APP-PSQL-PATTERNS\" title=\"Patterns\" rel=\"nofollow\"\u003e\u003cem\u003e\u003ccode\u003epattern\u003c/code\u003e\u003c/em\u003e\u003c/a\u003e ]\u003c/code\u003e\u003c/span\u003e \u003c/dt\u003e\u003cdd\u003e\n\u003cp\u003eLists extended statistics. If \u003cem\u003e\u003ccode\u003epattern\u003c/code\u003e\u003c/em\u003e is specified, only those extended statistics whose names match the pattern are listed. If \u003ccode\u003ex\u003c/code\u003e is appended to the command name, the results are displayed in expanded mode.\u003c/p\u003e\n\u003cp\u003eThe status of each kind of extended statistics is shown in a column named after its statistic kind (e.g. Ndistinct). \u003ccode\u003edefined\u003c/code\u003e means that it was requested when creating the statistics, and NULL means it wasn\u0026#39;t requested. You can use \u003ccode\u003epg_stats_ext\u003c/code\u003e if you\u0026#39;d like to know whether \u003ca href=\"/docs/18/sql-analyze.html\" title=\"ANALYZE\" rel=\"nofollow\"\u003e\u003ccode\u003eANALYZE\u003c/code\u003e\u003c/a\u003e was run and statistics are available to the planner.\u003c/p\u003e\n\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","SourceRevision":"ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8","ContentHash":"ed8e3260f1ba78302ffa0eb64334d2a65a77417d8e30ee6b404d7020f5617845","Payload":{"description":["Lists extended statistics. If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode."],"manual_html":"\u003cdiv\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt id=\"APP-PSQL-META-COMMAND-DX-UC\"\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003e\\dX[x] [ \u003ca class=\"link\" href=\"/docs/18/app-psql.html#APP-PSQL-PATTERNS\" title=\"Patterns\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003epattern\u003c/code\u003e\u003c/em\u003e\u003c/a\u003e ]\u003c/code\u003e\u003c/span\u003e \u003c/dt\u003e\u003cdd\u003e\n\u003cp\u003eLists extended statistics. If \u003cem class=\"replaceable\"\u003e\u003ccode\u003epattern\u003c/code\u003e\u003c/em\u003e is specified, only those extended statistics whose names match the pattern are listed. If \u003ccode class=\"literal\"\u003ex\u003c/code\u003e is appended to the command name, the results are displayed in expanded mode.\u003c/p\u003e\n\u003cp\u003eThe status of each kind of extended statistics is shown in a column named after its statistic kind (e.g. Ndistinct). \u003ccode class=\"literal\"\u003edefined\u003c/code\u003e means that it was requested when creating the statistics, and NULL means it wasn't requested. 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