{"Entry":{"collection":"operator","key":"op-7e2a-bpchar-text","name":"~*(bpchar,text)","aliases":["~*","~*(bpchar,text)"],"metadata":{"aliases":["~*","~*(bpchar,text)"],"category":"Character strings","content_hash":"a03b58833a3eae1d931a4488c1f6ca255f9e4a6480cb29b13616d74a755e79da","derived_content_hash":"a03f95c368088a8f9cb491f682b7b141de902a707d34aa41ef79d66a6692f554","imported_at":"2026-09-30T00:40:43.884933+08:00","name":"~*(bpchar,text)","name_zh":"","slug":"op-7e2a-bpchar-text","summary":"matches regular expression, case-insensitive"}},"Definition":{"Collection":"operator","Key":"op-7e2a-bpchar-text","SourceDatabase":"center","Version":"18","SourceTable":"pg_operator_entry","SourceKey":"op-7e2a-bpchar-text","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"aliases":["~*","~*(bpchar,text)"],"comparison_data":{"memberships":[],"operator":{"commutator":"","function":"bpcharicregexeq(bpchar,text)","hash_join":"f","kind":"b","left_type":"bpchar","merge_join":"f","negator":"!~*(bpchar,text)","result_type":"bool","right_type":"text","symbol":"~*"}},"comparison_hash":"705fba104e3b1b37cc880cdffe64996f5153d97aadf4ce580c732a626cb59c25","description":["matches regular expression, case-insensitive"],"description_zh":"匹配正则表达式，不区分大小写。","description_zh_html":"\u003cp\u003e匹配正则表达式，不区分大小写。\u003c/p\u003e\u003cdl\u003e\u003cdt\u003e种类\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003eb\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e符号\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003e~*\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e否定运算符\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003e!~*(bpchar,text)\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e实现函数\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003ebpcharicregexeq(bpchar,text)\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e可用于哈希连接\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003e否\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e左操作数类型\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003ebpchar\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e可用于归并连接\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003e否\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e右操作数类型\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003etext\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e结果类型\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003ebool\u003c/code\u003e\u003c/dd\u003e\u003c/dl\u003e\u003ch3\u003e同版本中文手册节选\u003c/h3\u003e\u003cp\u003e\n   目录 \u003ccode class=\"structname\"\u003epg_operator\u003c/code\u003e 存储关于操作符的信息。详见 \u003ca class=\"xref\" href=\"/zh/docs/18/sql-createoperator.html\"\u003e\u003cspan class=\"refentrytitle\"\u003eCREATE OPERATOR\u003c/span\u003e\u003c/a\u003e 和\u003ca class=\"xref\" href=\"/zh/docs/18/xoper.html\"\u003e第 36.14 节\u003c/a\u003e。\n  \u003c/p\u003e\u003cp\u003e\u003ca href=\"/zh/docs/18/catalog-pg-operator.html\"\u003e查看完整中文手册与上下文\u003c/a\u003e。\u003c/p\u003e\u003cp\u003e本页开头的中文说明为 PG.CENTER 对源码说明的翻译；手册节选保留对应版本中文文档原文。源码信息及手册示例不代表重新进行过运行测试。\u003c/p\u003e","facts":[{"label":"Left operand","value":"bpchar"},{"label":"Right operand","value":"text"},{"label":"Result type","value":"bool"},{"label":"Implementing function","value":"bpcharicregexeq(bpchar,text)"},{"label":"Operator kind","value":"Binary"},{"label":"Hash join candidate","value":"no"},{"label":"Merge join candidate","value":"no"}],"facts_zh":[{"label":"左操作数","value":"bpchar"},{"label":"右操作数","value":"text"},{"label":"返回类型","value":"bool"},{"label":"实现函数","value":"bpcharicregexeq(bpchar,text)"},{"label":"操作符种类","value":"Binary"},{"label":"可用于哈希连接","value":"否"},{"label":"可用于归并连接","value":"否"}],"manual_semantics":"Source catalog description; no additional matching manual operator definition claimed","memberships":[],"operator":{"commutator":"","function":"bpcharicregexeq(bpchar,text)","hash_join":"f","kind":"b","left_type":"bpchar","merge_join":"f","negator":"!~*(bpchar,text)","result_type":"bool","right_type":"text","symbol":"~*"},"related":[{"label":"bpchar data type","url":"/wiki/type/bpchar/?v=18"},{"label":"text data type","url":"/wiki/type/text/?v=18"},{"label":"bool data type","url":"/wiki/type/bool/?v=18"},{"label":"Negator: !~*(bpchar,text)","url":"/wiki/operator/op-217e2a-bpchar-text/?v=18"}],"release":{"catalog_fingerprint":"deec62e0f0c649d9d0d058ddd0b16bf41afffd569c3fd73949ff0971ce5cabd6","channel":"stable","label":"18.6","major":"18","manual_fingerprint":"fefce9e478eb2afe5e17e869492bbedc67dce23d317f0a5257240113d6496ebc","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. 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