{"Entry":{"collection":"psql","key":"cmd-73-65-74","name":"\\set","aliases":["\\set"],"metadata":{"aliases":["\\set"],"category":"Scripting and assistance","content_hash":"a2b95629537b9869ac24e0eeb36218de0d104e9afe564ba103fa7eb52f551a96","imported_at":"2026-09-30T00:40:45.183162+08:00","name":"\\set","name_zh":"","slug":"cmd-73-65-74","summary":"Sets the psql variable name to value , or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \\unset command."}},"Definition":{"Collection":"psql","Key":"cmd-73-65-74","SourceDatabase":"center","Version":"18","SourceTable":"psql_command","SourceKey":"cmd-73-65-74","SourceRevision":"ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8","Facts":{"command":"\\set","comparison_data":{"definition":"Sets the psql variable name to value , or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \\unset command. \\set without any arguments displays the names and values of all currently-set psql variables. Valid variable names can contain letters, digits, and underscores. See Variables below for details. Variable names are case-sensitive. Certain variables are special, in that they control psql 's behavior or are automatically set to reflect connection state. These variables are documented in Variables , below. Note This command is unrelated to the SQL command SET .","modifiers":[],"signature":"\\set [ name [ value [ ... ] ] ]","spellings":["\\set"]},"comparison_hash":"4ccab889961521d65dc52159ba29d4e119498b265c284df8c2f916c616b0da0e","description":["Sets the psql variable name to value , or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \\unset command."],"facts":[{"label":"Client","value":"psql 18.6"},{"label":"Case-sensitive spelling","value":"\\set"}],"manual_html":"\u003cdiv\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt id=\"APP-PSQL-META-COMMAND-SET\"\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003e\\set [ \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e [ \u003cem class=\"replaceable\"\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e [ ... ] ] ]\u003c/code\u003e\u003c/span\u003e \u003c/dt\u003e\u003cdd\u003e\n\u003cp\u003eSets the \u003cspan class=\"application\"\u003epsql\u003c/span\u003e variable \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e to \u003cem class=\"replaceable\"\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e, or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \u003ccode class=\"command\"\u003e\\unset\u003c/code\u003e command.\u003c/p\u003e\n\u003cp\u003e\u003ccode class=\"command\"\u003e\\set\u003c/code\u003e without any arguments displays the names and values of all currently-set \u003cspan class=\"application\"\u003epsql\u003c/span\u003e variables.\u003c/p\u003e\n\u003cp\u003eValid variable names can contain letters, digits, and underscores. See \u003ca class=\"xref\" href=\"/docs/18/app-psql.html#APP-PSQL-VARIABLES\" title=\"Variables\"\u003eVariables\u003c/a\u003e below for details. Variable names are case-sensitive.\u003c/p\u003e\n\u003cp\u003eCertain variables are special, in that they control \u003cspan class=\"application\"\u003epsql\u003c/span\u003e's behavior or are automatically set to reflect connection state. These variables are documented in \u003ca class=\"xref\" href=\"/docs/18/app-psql.html#APP-PSQL-VARIABLES\" title=\"Variables\"\u003eVariables\u003c/a\u003e, below.\u003c/p\u003e\n\u003cdiv class=\"note\"\u003e\n\u003ch3 class=\"title\"\u003eNote\u003c/h3\u003e\n\u003cp\u003eThis command is unrelated to the SQL command \u003ca class=\"link\" href=\"/docs/18/sql-set.html\" title=\"SET\"\u003e\u003ccode class=\"command\"\u003eSET\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","manual_path":"app-psql.html#APP-PSQL-META-COMMAND-SET","modifiers":[],"related":[{"label":"psql command-line options and complete manual","url":"/wiki/tool/psql/?v=18"}],"release":{"channel":"stable","evidence_kind":"English manual and source declarations","label":"18.6","major":"18","manifest":{"index":"index.html","major":"18","pages":1148,"pdf":{"A4":{"built_at":"2026-09-26","bytes":15865106,"pages":3154,"sha256":"19512c405da53f9f7fcf0abba359223aa65f021be025bf3411381918f92e3190","url":"/files/documentation/pdf/18/postgresql-18-A4.pdf"},"US":{"built_at":"2026-09-26","bytes":15748059,"pages":3328,"sha256":"facbe6c229e598b872d3d98bef53308f46e06746006fa4590de9a7de9dd46319","url":"/files/documentation/pdf/18/postgresql-18-US.pdf"}},"release":"18.6","source_mode":"en SGML built with pinned official archive","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","source_url":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","svg_assets":3,"tree":"18"},"ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sections":[],"signature":"\\set [ name [ value [ ... ] ] ]","sources":[{"anchor":"APP-PSQL-META-COMMAND-SET","file":"app-psql.html","label":"18.6 English manual · app-psql.html","sha256":"fa2a1d39294b8854318e82e93f71272c645ed88150ecc2786c28902c3f32782c","url":"/docs/18/app-psql.html#APP-PSQL-META-COMMAND-SET"}],"spellings":["\\set"],"tables":[{"columns":[{"key":"command","label":"Command"},{"key":"modifiers","label":"Documented suffix modifiers"}],"key":"spellings","rows":[{"command":{"text":"\\set","url":"/wiki/psql/cmd-73-65-74/?v=18"},"modifiers":"None listed in this signature"}],"title":"Spellings in this manual definition"}]},"ManualEvidence":{"manual_path":"app-psql.html#APP-PSQL-META-COMMAND-SET","release":{"channel":"stable","evidence_kind":"English manual and source declarations","label":"18.6","major":"18","manifest":{"index":"index.html","major":"18","pages":1148,"pdf":{"A4":{"built_at":"2026-09-26","bytes":15865106,"pages":3154,"sha256":"19512c405da53f9f7fcf0abba359223aa65f021be025bf3411381918f92e3190","url":"/files/documentation/pdf/18/postgresql-18-A4.pdf"},"US":{"built_at":"2026-09-26","bytes":15748059,"pages":3328,"sha256":"facbe6c229e598b872d3d98bef53308f46e06746006fa4590de9a7de9dd46319","url":"/files/documentation/pdf/18/postgresql-18-US.pdf"}},"release":"18.6","source_mode":"en SGML built with pinned official archive","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","source_url":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","svg_assets":3,"tree":"18"},"ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sources":[{"anchor":"APP-PSQL-META-COMMAND-SET","file":"app-psql.html","label":"18.6 English manual · app-psql.html","sha256":"fa2a1d39294b8854318e82e93f71272c645ed88150ecc2786c28902c3f32782c","url":"/docs/18/app-psql.html#APP-PSQL-META-COMMAND-SET"}]},"MeasuredEvidence":{}},"Text":{"Collection":"psql","Key":"cmd-73-65-74","SourceDatabase":"center","Version":"18","Locale":"en","Title":"\\set","Summary":"Sets the psql variable name to value , or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \\unset command.","BodyHTML":"\u003cdiv\u003e\u003cdl\u003e\u003cdt id=\"APP-PSQL-META-COMMAND-SET\"\u003e\u003cspan\u003e\u003ccode\u003e\\set [ \u003cem\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e [ \u003cem\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e [ ... ] ] ]\u003c/code\u003e\u003c/span\u003e \u003c/dt\u003e\u003cdd\u003e\n\u003cp\u003eSets the \u003cspan\u003epsql\u003c/span\u003e variable \u003cem\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e to \u003cem\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e, or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \u003ccode\u003e\\unset\u003c/code\u003e command.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003e\\set\u003c/code\u003e without any arguments displays the names and values of all currently-set \u003cspan\u003epsql\u003c/span\u003e variables.\u003c/p\u003e\n\u003cp\u003eValid variable names can contain letters, digits, and underscores. See \u003ca href=\"/docs/18/app-psql.html#APP-PSQL-VARIABLES\" title=\"Variables\" rel=\"nofollow\"\u003eVariables\u003c/a\u003e below for details. Variable names are case-sensitive.\u003c/p\u003e\n\u003cp\u003eCertain variables are special, in that they control \u003cspan\u003epsql\u003c/span\u003e\u0026#39;s behavior or are automatically set to reflect connection state. These variables are documented in \u003ca href=\"/docs/18/app-psql.html#APP-PSQL-VARIABLES\" title=\"Variables\" rel=\"nofollow\"\u003eVariables\u003c/a\u003e, below.\u003c/p\u003e\n\u003cdiv\u003e\n\u003ch3\u003eNote\u003c/h3\u003e\n\u003cp\u003eThis command is unrelated to the SQL command \u003ca href=\"/docs/18/sql-set.html\" title=\"SET\" rel=\"nofollow\"\u003e\u003ccode\u003eSET\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","SourceRevision":"ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8","ContentHash":"5aa083771ce58067000eb5cb18fc4b4891b6faafddc89beecc30fdadc3d3ce50","Payload":{"description":["Sets the psql variable name to value , or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \\unset command."],"manual_html":"\u003cdiv\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt id=\"APP-PSQL-META-COMMAND-SET\"\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003e\\set [ \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e [ \u003cem class=\"replaceable\"\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e [ ... ] ] ]\u003c/code\u003e\u003c/span\u003e \u003c/dt\u003e\u003cdd\u003e\n\u003cp\u003eSets the \u003cspan class=\"application\"\u003epsql\u003c/span\u003e variable \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e to \u003cem class=\"replaceable\"\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e, or if more than one value is given, to the concatenation of all of them. If only one argument is given, the variable is set to an empty-string value. To unset a variable, use the \u003ccode class=\"command\"\u003e\\unset\u003c/code\u003e command.\u003c/p\u003e\n\u003cp\u003e\u003ccode class=\"command\"\u003e\\set\u003c/code\u003e without any arguments displays the names and values of all currently-set \u003cspan class=\"application\"\u003epsql\u003c/span\u003e variables.\u003c/p\u003e\n\u003cp\u003eValid variable names can contain letters, digits, and underscores. See \u003ca class=\"xref\" href=\"/docs/18/app-psql.html#APP-PSQL-VARIABLES\" title=\"Variables\"\u003eVariables\u003c/a\u003e below for details. Variable names are case-sensitive.\u003c/p\u003e\n\u003cp\u003eCertain variables are special, in that they control \u003cspan class=\"application\"\u003epsql\u003c/span\u003e's behavior or are automatically set to reflect connection state. These variables are documented in \u003ca class=\"xref\" href=\"/docs/18/app-psql.html#APP-PSQL-VARIABLES\" title=\"Variables\"\u003eVariables\u003c/a\u003e, below.\u003c/p\u003e\n\u003cdiv class=\"note\"\u003e\n\u003ch3 class=\"title\"\u003eNote\u003c/h3\u003e\n\u003cp\u003eThis command is unrelated to the SQL command \u003ca class=\"link\" href=\"/docs/18/sql-set.html\" title=\"SET\"\u003e\u003ccode class=\"command\"\u003eSET\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","related":[{"label":"psql command-line options and complete manual","url":"/wiki/tool/psql/?v=18"}],"sections":[],"tables":[{"columns":[{"key":"command","label":"Command"},{"key":"modifiers","label":"Documented suffix modifiers"}],"key":"spellings","rows":[{"command":{"text":"\\set","url":"/wiki/psql/cmd-73-65-74/?v=18"},"modifiers":"None listed in this signature"}],"title":"Spellings in this manual definition"}]}},"RequestedLocale":"zh-Hans","Fallback":true,"Versions":["10","11","12","13","14","15","16","17","18","19","20"],"Locales":["en"],"Signatures":null,"Spellings":[{"Version":"18","Ordinal":0,"Command":"\\set","Signature":"\\set [ name [ value [ ... ] ] ]","Modifiers":[]}],"SQLState":null,"Evidence":null}