{"Entry":{"collection":"catalog","key":"pg_conversion","name":"pg_conversion","aliases":[],"metadata":{"changed_in":["8.1","12"],"changes":[{"added":[],"attributes":[],"description_changed":true,"descriptions":[],"from":"7.4","listing":[],"order":false,"removed":[],"status":"reworded","to":"8.0","types":[],"unlisted":[]},{"added":[],"attributes":[],"description_changed":false,"descriptions":[],"from":"8.0","listing":[],"order":false,"removed":[],"status":"changed","to":"8.1","types":[{"from":"int4","name":"conowner","to":"oid"}],"unlisted":[]},{"added":[],"attributes":[],"description_changed":true,"descriptions":[],"from":"9.0","listing":[],"order":false,"removed":[],"status":"reworded","to":"9.1","types":[],"unlisted":[]},{"added":[],"attributes":[],"description_changed":true,"descriptions":[{"from":"Conversion procedure","name":"conproc","to":"Conversion function"}],"from":"10","listing":[],"order":false,"removed":[],"status":"reworded","to":"11","types":[],"unlisted":[]},{"added":[],"attributes":[{"attribute":"hidden","from":true,"name":"oid","to":false}],"description_changed":false,"descriptions":[],"from":"11","listing":[],"order":false,"removed":[],"status":"changed","to":"12","types":[],"unlisted":[]},{"added":[],"attributes":[],"description_changed":false,"descriptions":[{"from":"Source encoding ID","name":"conforencoding","to":"Source encoding ID (pg_encoding_to_char() can translate this number to the encoding name)"},{"from":"Destination encoding ID","name":"contoencoding","to":"Destination encoding ID (pg_encoding_to_char() can translate this number to the encoding name)"}],"from":"14","listing":[],"order":false,"removed":[],"status":"reworded","to":"15","types":[],"unlisted":[]}],"column_count":8,"content_hash":"4545be6e6e221de9d18ff1d3f42715f14427dfb74745146d6c122fba89a12bbc","first_version":"7.4","imported_at":"2026-09-30T00:40:55.468795+08:00","kind":"catalog","last_version":"20","name":"pg_conversion","position":18,"present_in":["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"],"relation_oid":null,"relkind":"r","shared":false,"source_rev":"english-manuals:720b4c407d8bf23174e31ba7dff8c1eda0a7a44cb670fd67ff307d98aaf54dd8","summary":"The catalog pg_conversion describes encoding conversion functions.","summary_zh":""}},"Definition":{"Collection":"catalog","Key":"pg_conversion","SourceDatabase":"center","Version":"18","SourceTable":"catalog","SourceKey":"pg_conversion","SourceRevision":"english-manuals:720b4c407d8bf23174e31ba7dff8c1eda0a7a44cb670fd67ff307d98aaf54dd8","Facts":{"columns":[{"array_dimensions":0,"attnum":1,"description":"Row identifier","description_zh":"","documented":true,"documented_name":"oid","hidden":false,"name":"oid","not_null":true,"references":"","type":"oid","type_modifier":-1,"type_oid":26},{"array_dimensions":0,"attnum":2,"description":"Conversion name (unique within a namespace)","description_zh":"","documented":true,"documented_name":"conname","hidden":false,"name":"conname","not_null":true,"references":"","type":"name","type_modifier":-1,"type_oid":19},{"array_dimensions":0,"attnum":3,"description":"The OID of the namespace that contains this conversion","description_zh":"","documented":true,"documented_name":"connamespace","hidden":false,"name":"connamespace","not_null":true,"references":"pg_namespace.oid","type":"oid","type_modifier":-1,"type_oid":26},{"array_dimensions":0,"attnum":4,"description":"Owner of the conversion","description_zh":"","documented":true,"documented_name":"conowner","hidden":false,"name":"conowner","not_null":true,"references":"pg_authid.oid","type":"oid","type_modifier":-1,"type_oid":26},{"array_dimensions":0,"attnum":5,"description":"Source encoding ID (pg_encoding_to_char() can translate this number to the encoding name)","description_zh":"","documented":true,"documented_name":"conforencoding","hidden":false,"name":"conforencoding","not_null":true,"references":"","type":"int4","type_modifier":-1,"type_oid":23},{"array_dimensions":0,"attnum":6,"description":"Destination encoding ID (pg_encoding_to_char() can translate this number to the encoding name)","description_zh":"","documented":true,"documented_name":"contoencoding","hidden":false,"name":"contoencoding","not_null":true,"references":"","type":"int4","type_modifier":-1,"type_oid":23},{"array_dimensions":0,"attnum":7,"description":"Conversion function","description_zh":"","documented":true,"documented_name":"conproc","hidden":false,"name":"conproc","not_null":true,"references":"pg_proc.oid","type":"regproc","type_modifier":-1,"type_oid":24},{"array_dimensions":0,"attnum":8,"description":"True if this is the default conversion","description_zh":"","documented":true,"documented_name":"condefault","hidden":false,"name":"condefault","not_null":true,"references":"","type":"bool","type_modifier":-1,"type_oid":16}],"description":"The catalog pg_conversion describes encoding conversion functions. See CREATE CONVERSION for more information.","description_zh":"","doc":{"anchor":"id-1.10.4.16.4","file":"catalog-pg-conversion.html","lang":"en","sha256":"9fae26c8790e583a0aafa2d96e23740de3d05afe595179a7542351210065a821","slug":"18"},"kind":"catalog","lang":"en","measured_attributes":true,"metadata_release":"18.6","runtime_columns":["oid","conname","connamespace","conowner","conforencoding","contoencoding","conproc","condefault"],"runtime_verified":false,"source":"english-manual"},"ManualEvidence":{"doc":{"anchor":"id-1.10.4.16.4","file":"catalog-pg-conversion.html","lang":"en","sha256":"9fae26c8790e583a0aafa2d96e23740de3d05afe595179a7542351210065a821","slug":"18"}},"MeasuredEvidence":{"measured_attributes":true,"metadata_release":"18.6","runtime_columns":["oid","conname","connamespace","conowner","conforencoding","contoencoding","conproc","condefault"],"runtime_verified":false}},"Text":{"Collection":"catalog","Key":"pg_conversion","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"pg_conversion","Summary":"目录pg_conversion描述编码转换函数。更多信息参见CREATE CONVERSION。","BodyHTML":"\u003cp\u003e目录pg_conversion描述编码转换函数。更多信息参见CREATE CONVERSION。\u003c/p\u003e","SourceRevision":"2026-09-27@419045e","ContentHash":"8668a51aaff9eed1aaa7d79459516329102f6803c6540412fe93e2868e16a969","Payload":{"columns":[{"description_zh":"行标识符","name":"oid","type":"oid","zh_from":"doc"},{"description_zh":"转换的名字（在一个名字空间内唯一）","name":"conname","type":"name","zh_from":"doc"},{"description_zh":"包含此转换的名字空间的OID","name":"connamespace","type":"oid","zh_from":"doc"},{"description_zh":"转换的拥有者","name":"conowner","type":"oid","zh_from":"doc"},{"description_zh":"源编码ID（pg_encoding_to_char() 可以将此数字转换为编码名称）","name":"conforencoding","type":"integer","zh_from":"doc"},{"description_zh":"目标编码ID（pg_encoding_to_char() 可以将此数字转换为编码名称）","name":"contoencoding","type":"integer","zh_from":"doc"},{"description_zh":"转换函数","name":"conproc","type":"regproc","zh_from":"doc"},{"description_zh":"如果这是默认转换则为真","name":"condefault","type":"boolean","zh_from":"doc"}],"description_zh":"目录pg_conversion描述编码转换函数。更多信息参见CREATE CONVERSION。","zh_from":"doc"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","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":null,"Spellings":null,"SQLState":null,"Evidence":null}
