{"Entry":{"collection":"func","key":"set-bit","name":"set_bit","aliases":[],"metadata":{"changed_in":[],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"7.2","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"added","to":"7.3"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"}],"content_hash":"9e384c12b481c9c2d64f20165483df5190f7a3cca2f3385e52dde608fa723fa9","first_version":"7.3","group":"binarystring","group_label":"Binary String Functions And Operators","groups":["binarystring","bitstring"],"imported_at":"2026-09-27T17:57:28.485828+08:00","last_version":"20","name":"set_bit","name_key":"set_bit","position":4010,"present_in":["7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"signature":"set_bit ( bytes bytea, n bigint, newvalue integer ) → 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class=\"returnvalue\"\u003ebytea\u003c/code\u003e","returns":"bytea","text":"set_bit ( bytes bytea, n bigint, newvalue integer ) → bytea","zh_from":""},{"description":"Sets n'th bit in bit string to newvalue; the first (leftmost) bit is bit 0.","description_html":"Sets \u003cem class=\"parameter\"\u003e\u003ccode\u003en\u003c/code\u003e\u003c/em\u003e'th bit in bit string to \u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e; the first (leftmost) bit is bit 0.","description_zh":"","description_zh_html":"","examples":[{"expr":"set_bit(B'101010101010101010', 6, 0)","result":"101010001010101010"}],"html":"\u003ccode class=\"function\"\u003eset_bit\u003c/code\u003e ( \u003cem class=\"parameter\"\u003e\u003ccode\u003ebits\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003ebit\u003c/code\u003e, \u003cem class=\"parameter\"\u003e\u003ccode\u003en\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003einteger\u003c/code\u003e, \u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003einteger\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003ebit\u003c/code\u003e","returns":"bit","text":"set_bit ( bits bit, n integer, newvalue integer ) → bit","zh_from":""}],"zh_from":""},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-BINARYSTRING-OTHER","file":"functions-binarystring.html","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"set-bit","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"set_bit","Summary":"设置二进制字符串中的编号为 n 的位为newvalue。","BodyHTML":"设置二进制字符串中的\u003ca href=\"/docs/18/functions-binarystring.html#FUNCTIONS-ZEROBASED-NOTE\" rel=\"nofollow\"\u003e编号为 n 的\u003c/a\u003e位为\u003cem\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e。\u003cpre\u003eset_bit ( bytes bytea, n bigint, newvalue integer ) → bytea\u003c/pre\u003e设置二进制字符串中的\u003ca href=\"/docs/18/functions-binarystring.html#FUNCTIONS-ZEROBASED-NOTE\" rel=\"nofollow\"\u003e编号为 n 的\u003c/a\u003e位为\u003cem\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e。\u003cpre\u003eset_bit ( bits bit, n integer, newvalue integer ) → bit\u003c/pre\u003e将位串中编号为\u003cem\u003e\u003ccode\u003en\u003c/code\u003e\u003c/em\u003e的位设置为\u003cem\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e；第一位（最左侧的位）编号为位 0。","SourceRevision":"ca936764","ContentHash":"81bbe69cdf348ebd3994c9fde207724aec4c465563fef92815d711b2d84e1a0a","Payload":{"description_zh":"设置二进制字符串中的编号为 n 的位为newvalue。","description_zh_html":"设置二进制字符串中的\u003ca href=\"/docs/18/functions-binarystring.html#FUNCTIONS-ZEROBASED-NOTE\"\u003e编号为 n 的\u003c/a\u003e位为\u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e。","signatures":[{"description_zh":"设置二进制字符串中的编号为 n 的位为newvalue。","description_zh_html":"设置二进制字符串中的\u003ca href=\"/docs/18/functions-binarystring.html#FUNCTIONS-ZEROBASED-NOTE\"\u003e编号为 n 的\u003c/a\u003e位为\u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e。","returns":"bytea","text":"set_bit ( bytes bytea, n bigint, newvalue integer ) → bytea","zh_from":"doc"},{"description_zh":"将位串中编号为n的位设置为newvalue；第一位（最左侧的位）编号为位 0。","description_zh_html":"将位串中编号为\u003cem class=\"parameter\"\u003e\u003ccode\u003en\u003c/code\u003e\u003c/em\u003e的位设置为\u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e；第一位（最左侧的位）编号为位 0。","returns":"bit","text":"set_bit ( bits bit, n integer, newvalue integer ) → bit","zh_from":"doc"}],"zh_from":"doc"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":[{"Version":"18","Ordinal":0,"Hash":"e1f6d56f6c4e099aaaa3d012802b4cb6dd8ab4f68d0691c1d023a64018a5c929","Text":"set_bit ( bytes bytea, n bigint, newvalue integer ) → bytea","Returns":"bytea","Payload":{"description":"Sets n'th bit in binary string to newvalue.","description_html":"Sets \u003ca href=\"/docs/18/functions-binarystring.html#FUNCTIONS-ZEROBASED-NOTE\"\u003en'th\u003c/a\u003e bit in binary string to \u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e.","description_zh":"","description_zh_html":"","examples":[{"expr":"set_bit('\\x1234567890'::bytea, 30, 0)","result":"\\x1234563890"}],"html":"\u003ccode class=\"function\"\u003eset_bit\u003c/code\u003e ( \u003cem class=\"parameter\"\u003e\u003ccode\u003ebytes\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003ebytea\u003c/code\u003e, \u003cem class=\"parameter\"\u003e\u003ccode\u003en\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003ebigint\u003c/code\u003e, \u003cem class=\"parameter\"\u003e\u003ccode\u003enewvalue\u003c/code\u003e\u003c/em\u003e \u003ccode class=\"type\"\u003einteger\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003ebytea\u003c/code\u003e","returns":"bytea","text":"set_bit ( bytes bytea, n bigint, newvalue integer ) → bytea","zh_from":""}},{"Version":"18","Ordinal":1,"Hash":"65cf010233fe4e6b2426b24e879e8935251b8061459eb3d9caf8ca3c604bc147","Text":"set_bit ( bits bit, n integer, newvalue integer ) → bit","Returns":"bit","Payload":{"description":"Sets n'th bit in bit string to newvalue; the first (leftmost) bit is bit 0.","description_html":"Sets \u003cem class=\"parameter\"\u003e\u003ccode\u003en\u003c/code\u003e\u003c/em\u003e'th bit in bit 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