{"kind": "type", "slug": "bpchar", "name": "character", "major": "18", "snapshot": {"casts": [{"castfunc": "0", "castmethod": "b", "castsource": "text", "casttarget": "bpchar", "castcontext": "i"}, {"castfunc": "text(bpchar)", "castmethod": "f", "castsource": "bpchar", "casttarget": "text", "castcontext": "i"}, {"castfunc": "text(bpchar)", "castmethod": "f", "castsource": "bpchar", "casttarget": "varchar", "castcontext": "i"}, {"castfunc": "0", "castmethod": "b", "castsource": "varchar", "casttarget": "bpchar", "castcontext": "i"}, {"castfunc": "bpchar(char)", "castmethod": "f", "castsource": "char", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "bpchar(name)", "castmethod": "f", "castsource": "name", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "char(text)", "castmethod": "f", "castsource": "bpchar", "casttarget": "char", "castcontext": "a"}, {"castfunc": "name(bpchar)", "castmethod": "f", "castsource": "bpchar", "casttarget": "name", "castcontext": "i"}, {"castfunc": "text(inet)", "castmethod": "f", "castsource": "cidr", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "text(inet)", "castmethod": "f", "castsource": "inet", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "text(bool)", "castmethod": "f", "castsource": "bool", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "0", "castmethod": "b", "castsource": "xml", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "xml", "castmethod": "f", "castsource": "bpchar", "casttarget": "xml", "castcontext": "e"}, {"castfunc": "bpchar(bpchar,int4,bool)", "castmethod": "f", "castsource": "bpchar", "casttarget": "bpchar", "castcontext": "i"}], "facts": [{"label": "目录名称", "value": "pg_catalog.bpchar"}, {"label": "类型 OID", "value": "1042"}, {"label": "类型种类", "value": "基础类型"}, {"label": "声明长度", "value": "变长（varlena）"}, {"label": "存储策略", "value": "扩展"}, {"label": "输入函数", "value": "bpcharin"}, {"label": "输出函数", "value": "bpcharout"}, {"label": "手册中的声明", "value": "character( n ) , char( n ) , bpchar( n )"}, {"label": "手册说明", "value": "定长，空格填充"}, {"label": "手册中的声明", "value": "bpchar"}, {"label": "手册说明", "value": "无限长度的变长，忽略尾随空格"}], "ranges": [], "tables": [], "aliases": ["bpchar", "char [ ( n ) ]"], "catalog": {"oid": "1042", "descr": "'char(length)' blank-padded string, fixed storage length", "typacl": "_null_", "typlen": "-1", "typelem": "0", "typname": "bpchar", "typsend": "bpcharsend", "typtype": "b", "typalign": "i", "typarray": "0", "typbyval": "f", "typdelim": "','", "typinput": "bpcharin", "typmodin": "bpchartypmodin", "typndims": "0", "typowner": "POSTGRES", "typrelid": "0", "typmodout": "bpchartypmodout", "typoutput": "bpcharout", "typtypmod": "-1", "typanalyze": "-", "typdefault": "_null_", "typnotnull": "f", "typreceive": "bpcharrecv", "typstorage": "x", "typbasetype": "0", "typcategory": "S", "typcollation": "default", "typisdefined": "t", "typnamespace": "pg_catalog", "typsubscript": "-", "typdefaultbin": "_null_", "array_type_oid": "1014", "typispreferred": "f", "array_type_name": "_bpchar"}, "related": [{"url": "/wiki/catalog/pg_type/?v=18", "label": "pg_type 系统目录"}, {"url": "/wiki/catalog/pg_cast/?v=18", "label": "pg_cast 系统目录"}, {"url": "/wiki/catalog/pg_operator/?v=18", "label": "pg_operator 系统目录"}, {"url": "/wiki/catalog/pg_opclass/?v=18", "label": "pg_opclass 系统目录"}, {"url": "/wiki/type/arrays/?v=18", "label": "数组"}, {"url": "/wiki/indexam/brin/?v=18", "label": "brin 索引访问方法"}, {"url": "/wiki/indexam/btree/?v=18", "label": "btree 索引访问方法"}, {"url": "/wiki/indexam/hash/?v=18", "label": "hash 索引访问方法"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "source_files": {"doc/src/sgml/datatype.sgml": "86328daa77e20d81d222376ec0306d9841a17104e436c08d138eb763aefb3700", "src/include/catalog/pg_am.h": "3426799df799f32163fcc0765f43dbdb5e88e626acf31284fef9fc6014b69d8e", "src/include/catalog/pg_am.dat": "b3cb86b102a42fb0024cbd99779c9897afb40d12a71f5cc5a0e5aee7ff2f9969", "src/include/catalog/pg_cast.h": "de585c7df687d698e7d1d100dce8a794ac9da52414ea48169191019178c8f053", "src/include/catalog/pg_proc.h": "f7d59f07c5b95e2f3c7141762a0f576e8a3af7581ba54c27537f4d500472bea5", "src/include/catalog/pg_type.h": "8fb198749fd82b6c1818a3c18455f226f66116fcfeb3d4959c65ce3fda22802e", "src/include/catalog/pg_range.h": "45546d952b5181f989bd9234721897fc2b37005c8e49ce2ddc156f26974c3ca4", "src/include/catalog/pg_cast.dat": "97911281ca2c81917394ccb2ec13367e37c6801fd461d5e1a3d2f28b911b46b2", "src/include/catalog/pg_proc.dat": "1f934ce80d460159dda137714374a35f9896315ea2476709cbb4da13b38ef95a", "src/include/catalog/pg_type.dat": "5f5887b75677cba2d4a1a0cfeb355df5ed91f85d385fac88bd8d7c605b3578f9", "src/include/catalog/pg_opclass.h": "9c218537806c8ef0398302faaca7f91315dfc1198c48706cebffb479b68defaf", "src/include/catalog/pg_range.dat": "5c2271f8e89e9378d1887204e5785060b77405b5f0ff3e6c719250c9c1dcfcc4", "src/include/catalog/pg_operator.h": "621b18cfffe102413d79b746ce7a10f77fc60fdd097bac34c22b31070d3ee3c4", "src/include/catalog/pg_opfamily.h": "e1f5fc8aebd3042df847455bf66bf755f768c2aa8a9b03d22f7ec8563eba59c0", "src/include/catalog/pg_opclass.dat": "4ee7d3619a6aa106e1c0db55de903931c7d11b1c60ba053a022519c55f8ee668", "src/include/catalog/pg_operator.dat": "5d35b9b2ef5f9797cc815263927ef8a12367fedace53e828b4e8b320e2a7f703", "src/include/catalog/pg_opfamily.dat": "3b694879027b858f2ecf1fa1152b7e30c6e15a216ba99c2384291c30e9d52311"}, "manual_sha256": {"arrays.html": "0e1d5c5a7b4a949d4439995f44f74ad4264e050d16eb9ad2a850fbaee04032df", "domains.html": "82d486973ccc35d14276627a67ac76b434452f23f9ed4d8aa3fbb01fdf285fc2", "datatype.html": "e581f67c74e42006289638c8659e9b338adbfd7f068bd8bf2b3be3880fcd2254", "rowtypes.html": "74f99e029c3a9edfd3e18810ba3c8cb66d3aada91eb67b86476560871e6617e9", "rangetypes.html": "e4960abc7ce8e51d794f94f1e57b099d30b7f75dd7f2b23a960eef91f6291c33", "datatype-bit.html": "c49124aad561636c18080b9e09572fde7785a6b9eae86f5a33283f0fd6774c37", "datatype-oid.html": "8b3360302225f08ae72716ce1804596de95b568e5d31f788cb4597427b28cc38", "datatype-xml.html": "061fc2295b7b69be704f0a741b8decd10ad721059f871fb0243c669bb54d7822", "datatype-enum.html": "cab38e53222e30cc94b24de4b33634fd22d7c93f58ebcf35f646c9b8da78fae8", "datatype-json.html": "650162a05b660146b500a205d523374d00aee117a6a6240d30262be51b6e33e5", "datatype-uuid.html": "292b307b3223c6182bdba687e7f69e6dca9038430143ad79d56327f6ed4c3246", "datatype-money.html": "8b29c14b90679683ac5c472b59a0a7e2853f32cc7db43fab417b2697a6879964", "functions-info.html": "78ac80bf81da2e4f4a33f3b850faa86f0f58ec54a083d6c31da557907de0df87", "catalog-pg-type.html": "ea9c9313bab8e92a7da18ebc50c7ff1f908dd80999a7e0ca3bbc82ba626c58d4", "datatype-binary.html": "0c03ec47b76e37888a3da7f5dcfd340128a5d356642a85185cc9ebe17856a904", "datatype-pg-lsn.html": "339172f5107cc7eb7139bec911277647219e92a532cebd0f3da0a5dacf8195af", "datatype-pseudo.html": "c7cf0b8214304bd8702c95f2142671ae5f0d631f83717f9c07d9e1f2579961b4", "datatype-boolean.html": "b633f663e6c8276e7056287640c413aa79dbc15d5353cee0d41653d58d376956", "datatype-numeric.html": "b74619f7ac2f1ca9f85c48073df78c33dd30e464e61baba6008634534edcb500", "sql-createdomain.html": "e94f927196de1b0ea1ce35cd4603c1f6f544439adcc0edf1c4222358e832245b", "datatype-datetime.html": "e366275d8b13845bfa4ef0d68faa093e5f3ecb708a1ec870cbcbf7e425b85699", "datatype-character.html": "c73eebe413ea709a7792e4cfc3cfe9fb68cb496ebe83c3ebaa9d09f8c40d0f73", "datatype-geometric.html": "0eb3053cfe7d6b0a4b5592c5d7af8d97cae527e87f063c5793413bcba5c14cd9", "datatype-net-types.html": "96846e641cc37727ddcd8b8a1aa0dbe33cd9787760a2b4efb0dcb9403d5be63f", "datatype-textsearch.html": "4b15e05be8b49a71b28aea22f2c46d0dbf639a91e7b4fe129a4c737c6daad47c"}, "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "/docs/18/datatype-character.html", "path": "datatype-character.html", "label": "PostgreSQL 18 English manual", "sha256": "c73eebe413ea709a7792e4cfc3cfe9fb68cb496ebe83c3ebaa9d09f8c40d0f73"}, {"url": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}], "zh_from": {"kind": "same-version-chinese-manual-with-preserved-translation-of-reverified-type-description", "manual": {"url": "/zh/docs/18/datatype-character.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "datatype-character.html", "extraction": "exact-table-row", "source_hash": "20b454879774a337fc212af9aa5395d7db17332995937e1fdbb50801a9a15c0a", "fragment_sha256": "3d9ae8f45ccaecef3d7b5d54625c81c3fc67470ff07428e1fc0591bb594592d7", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "e7783c1e1508afd9dfb58ae90aa221268b56f8c368ee8784f4f5ed2018e6a104", "runtime_rerun": false, "summary_translation": {"key": "bpchar", "kind": "preserved-translation-of-reverified-type-description", "table": "data_type", "version": "18", "source_database": "pgweb", "english_description_sha256": "ef60fcb52ce226145814835aaa8071162038cf118ed275232cc96190226c55c4", "localized_description_sha256": "6b04110588dee6621c1bb22227781b91e07907cbd758a4c10af4ff315fd53d12", "original_localization_sources": [{"url": "/docs/18/datatype-character.html", "method": "same-major semantic node", "sha256": "1b410c231f113ce255ee6b8ce70f72d0caa18402458df477bf254d2989b0874e", "language": "zh", "matched_nodes": ["#DATATYPE-CHARACTER/div[0]", "#DATATYPE-CHARACTER/div[19]/h3[0]", "#DATATYPE-CHARACTER/div[19]/p[1]", "#DATATYPE-CHARACTER/div[21]/div[1]/div[1]/table[0]/tr[0]/td[1]", "#DATATYPE-CHARACTER/div[21]/p[0]", "#DATATYPE-CHARACTER/div[24]/div[1]/table[0]/tbody[2]/tr[0]/td[2]", "#DATATYPE-CHARACTER/div[24]/div[1]/table[0]/tbody[2]/tr[1]/td[2]", "#DATATYPE-CHARACTER/div[24]/p[0]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[0]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[1]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[2]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[3]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/thead[1]/tr[0]/th[0]", "#DATATYPE-CHARACTER/div[9]/p[0]", "#DATATYPE-CHARACTER/p[11]", "#DATATYPE-CHARACTER/p[12]", "#DATATYPE-CHARACTER/p[13]", "#DATATYPE-CHARACTER/p[14]", "#DATATYPE-CHARACTER/p[16]", "#DATATYPE-CHARACTER/p[17]", "#DATATYPE-CHARACTER/p[20]"]}, {"url": "/docs/18/functions-matching.html", "method": "same-major semantic node", "sha256": "704120d783880b39b956c073d1a82ba1f40b35068b4d3b9a195f543b86c3a22a", "language": "zh", "matched_nodes": ["#FUNCTIONS-MATCHING/div[9]/div[51]/p[2]/em[2]"]}, {"url": "/docs/18/protocol-overview.html", "method": "same-major semantic node", "sha256": "3f1aa8bd4dbef58e9a82e8cf4c82829a4df7416cfa83dd61c18e9e25060f22da", "language": "zh", "matched_nodes": ["#PROTOCOL-OVERVIEW/div[9]/p[1]/span[2]/span[0]"]}]}, "authored_translation": "preserved-translation-of-reverified-type-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "coverage": "source inventory; exact declared input types for operator classes", "facts_zh": [{"label": "目录名称", "value": "pg_catalog.bpchar"}, {"label": "类型 OID", "value": "1042"}, {"label": "类型种类", "value": "基础类型"}, {"label": "声明长度", "value": "变长（varlena）"}, {"label": "存储策略", "value": "扩展"}, {"label": "输入函数", "value": "bpcharin"}, {"label": "输出函数", "value": "bpcharout"}, {"label": "手册中的声明", "value": "character( n ) , char( n ) , bpchar( n )"}, {"label": "手册说明", "value": "定长，空格填充"}, {"label": "手册中的声明", "value": "bpchar"}, {"label": "手册说明", "value": "无限长度的变长，忽略尾随空格"}], "sections": [], "center_zh": {"title": "character", "locale": "zh-Hans", "source": {"key": "bpchar", "locale": "zh-Hans", "version": "18", "text_hash": "b1a48208d3a00e6ef6b8d4ec3cf8e8705272b5e061e0c77b0df9aa1d0b136fb1", "collection": "type", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "目录名称", "value": "pg_catalog.bpchar"}, {"label": "类型 OID", "value": "1042"}, {"label": "类型种类", "value": "基础类型"}, {"label": "声明长度", "value": "变长（varlena）"}, {"label": "存储策略", "value": "扩展"}, {"label": "输入函数", "value": "bpcharin"}, {"label": "输出函数", "value": "bpcharout"}, {"label": "手册中的声明", "value": "character( n ) , char( n ) , bpchar( n )"}, {"label": "手册说明", "value": "定长，空格填充"}, {"label": "手册中的声明", "value": "bpchar"}, {"label": "手册说明", "value": "无限长度的变长，忽略尾随空格"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-preserved-translation-of-reverified-type-description", "manual": {"url": "/zh/docs/18/datatype-character.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "datatype-character.html", "extraction": "exact-table-row", "source_hash": "20b454879774a337fc212af9aa5395d7db17332995937e1fdbb50801a9a15c0a", "fragment_sha256": "3d9ae8f45ccaecef3d7b5d54625c81c3fc67470ff07428e1fc0591bb594592d7", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "e7783c1e1508afd9dfb58ae90aa221268b56f8c368ee8784f4f5ed2018e6a104", "runtime_rerun": false, "summary_translation": {"key": "bpchar", "kind": "preserved-translation-of-reverified-type-description", "table": "data_type", "version": "18", "source_database": "pgweb", "english_description_sha256": "ef60fcb52ce226145814835aaa8071162038cf118ed275232cc96190226c55c4", "localized_description_sha256": "6b04110588dee6621c1bb22227781b91e07907cbd758a4c10af4ff315fd53d12", "original_localization_sources": [{"url": "/docs/18/datatype-character.html", "method": "same-major semantic node", "sha256": "1b410c231f113ce255ee6b8ce70f72d0caa18402458df477bf254d2989b0874e", "language": "zh", "matched_nodes": ["#DATATYPE-CHARACTER/div[0]", "#DATATYPE-CHARACTER/div[19]/h3[0]", "#DATATYPE-CHARACTER/div[19]/p[1]", "#DATATYPE-CHARACTER/div[21]/div[1]/div[1]/table[0]/tr[0]/td[1]", "#DATATYPE-CHARACTER/div[21]/p[0]", "#DATATYPE-CHARACTER/div[24]/div[1]/table[0]/tbody[2]/tr[0]/td[2]", "#DATATYPE-CHARACTER/div[24]/div[1]/table[0]/tbody[2]/tr[1]/td[2]", "#DATATYPE-CHARACTER/div[24]/p[0]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[0]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[1]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[2]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[3]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/thead[1]/tr[0]/th[0]", "#DATATYPE-CHARACTER/div[9]/p[0]", "#DATATYPE-CHARACTER/p[11]", "#DATATYPE-CHARACTER/p[12]", "#DATATYPE-CHARACTER/p[13]", "#DATATYPE-CHARACTER/p[14]", "#DATATYPE-CHARACTER/p[16]", "#DATATYPE-CHARACTER/p[17]", "#DATATYPE-CHARACTER/p[20]"]}, {"url": "/docs/18/functions-matching.html", "method": "same-major semantic node", "sha256": "704120d783880b39b956c073d1a82ba1f40b35068b4d3b9a195f543b86c3a22a", "language": "zh", "matched_nodes": ["#FUNCTIONS-MATCHING/div[9]/div[51]/p[2]/em[2]"]}, {"url": "/docs/18/protocol-overview.html", "method": "same-major semantic node", "sha256": "3f1aa8bd4dbef58e9a82e8cf4c82829a4df7416cfa83dd61c18e9e25060f22da", "language": "zh", "matched_nodes": ["#PROTOCOL-OVERVIEW/div[9]/p[1]/span[2]/span[0]"]}]}, "authored_translation": "preserved-translation-of-reverified-type-description", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [], "description_zh": "定长字符串", "description_zh_html": "<p>定长字符串</p><h3>同版本中文手册定义</h3><table><tbody><tr><td><code class=\"type\">bpchar</code></td><td>无限长度的变长，忽略尾随空格</td></tr></tbody></table><p><a href=\"/zh/docs/18/datatype-character.html\">查看完整中文手册与上下文</a>。</p>"}, "summary": "定长字符串", "version": "18", "link_map": {"/zh/docs/18/datatype-character.html": "/docs/18/datatype-character.html"}, "body_html": "<p>定长字符串</p><h3>同版本中文手册定义</h3><table><tbody><tr><td><code>bpchar</code></td><td>无限长度的变长，忽略尾随空格</td></tr></tbody></table><p><a href=\"/zh/docs/18/datatype-character.html\" rel=\"nofollow\">查看完整中文手册与上下文</a>。</p>", "body_sha256": "3c52a8658e6b82922bdc587dd51c01caf00c950fb17f94c8c369d0375e42b843", "content_hash": "b1a48208d3a00e6ef6b8d4ec3cf8e8705272b5e061e0c77b0df9aa1d0b136fb1", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "operators": [{"oid": "1054", "descr": "equal", "oprcom": "=(bpchar,bpchar)", "oprcode": "bpchareq", "oprjoin": "eqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "=", "oprrest": "eqsel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "<>(bpchar,bpchar)", "oprresult": "bool", "oid_symbol": "BpcharEqualOperator", "oprcanhash": "t", "oprcanmerge": "t", "oprnamespace": "pg_catalog"}, {"oid": "1055", "descr": "matches regular expression, case-sensitive", "oprcom": "0", "oprcode": "bpcharregexeq", "oprjoin": "regexeqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~", "oprrest": "regexeqsel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "!~(bpchar,text)", "oprresult": "bool", "oid_symbol": "OID_BPCHAR_REGEXEQ_OP", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1056", "descr": "does not match regular expression, case-sensitive", "oprcom": "0", "oprcode": "bpcharregexne", "oprjoin": "regexnejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~", "oprrest": "regexnesel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "~(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1057", "descr": "not equal", "oprcom": "<>(bpchar,bpchar)", "oprcode": "bpcharne", "oprjoin": "neqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "<>", "oprrest": "neqsel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "=(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1058", "descr": "less than", "oprcom": ">(bpchar,bpchar)", "oprcode": "bpcharlt", "oprjoin": "scalarltjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "<", "oprrest": "scalarltsel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": ">=(bpchar,bpchar)", "oprresult": "bool", "oid_symbol": "BpcharLessOperator", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1059", "descr": "less than or equal", "oprcom": ">=(bpchar,bpchar)", "oprcode": "bpcharle", "oprjoin": "scalarlejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "<=", "oprrest": "scalarlesel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": ">(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1060", "descr": "greater than", "oprcom": "<(bpchar,bpchar)", "oprcode": "bpchargt", "oprjoin": "scalargtjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": ">", "oprrest": "scalargtsel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "<=(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1061", "descr": "greater than or equal", "oprcom": "<=(bpchar,bpchar)", "oprcode": "bpcharge", "oprjoin": "scalargejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": ">=", "oprrest": "scalargesel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "<(bpchar,bpchar)", "oprresult": "bool", "oid_symbol": "BpcharGreaterEqualOperator", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1211", "descr": "matches LIKE expression", "oprcom": "0", "oprcode": "bpcharlike", "oprjoin": "likejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~~", "oprrest": "likesel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "!~~(bpchar,text)", "oprresult": "bool", "oid_symbol": "OID_BPCHAR_LIKE_OP", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1212", "descr": "does not match LIKE expression", "oprcom": "0", "oprcode": "bpcharnlike", "oprjoin": "nlikejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~~", "oprrest": "nlikesel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "~~(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1234", "descr": "matches regular expression, case-insensitive", "oprcom": "0", "oprcode": "bpcharicregexeq", "oprjoin": "icregexeqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~*", "oprrest": "icregexeqsel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "!~*(bpchar,text)", "oprresult": "bool", "oid_symbol": "OID_BPCHAR_ICREGEXEQ_OP", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1235", "descr": "does not match regular expression, case-insensitive", "oprcom": "0", "oprcode": "bpcharicregexne", "oprjoin": "icregexnejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~*", "oprrest": "icregexnesel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "~*(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1629", "descr": "matches LIKE expression, case-insensitive", "oprcom": "0", "oprcode": "bpchariclike", "oprjoin": "iclikejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~~*", "oprrest": "iclikesel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "!~~*(bpchar,text)", "oprresult": "bool", "oid_symbol": "OID_BPCHAR_ICLIKE_OP", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "1630", "descr": "does not match LIKE expression, case-insensitive", "oprcom": "0", "oprcode": "bpcharicnlike", "oprjoin": "icnlikejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~~*", "oprrest": "icnlikesel", "oprowner": "POSTGRES", "oprright": "text", "oprnegate": "~~*(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "2326", "descr": "less than", "oprcom": "~>~(bpchar,bpchar)", "oprcode": "bpchar_pattern_lt", "oprjoin": "scalarltjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~<~", "oprrest": "scalarltsel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "~>=~(bpchar,bpchar)", "oprresult": "bool", "oid_symbol": "BpcharPatternLessOperator", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "2327", "descr": "less than or equal", "oprcom": "~>=~(bpchar,bpchar)", "oprcode": "bpchar_pattern_le", "oprjoin": "scalarlejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~<=~", "oprrest": "scalarlesel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "~>~(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "2329", "descr": "greater than or equal", "oprcom": "~<=~(bpchar,bpchar)", "oprcode": "bpchar_pattern_ge", "oprjoin": "scalargejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~>=~", "oprrest": "scalargesel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "~<~(bpchar,bpchar)", "oprresult": "bool", "oid_symbol": "BpcharPatternGreaterEqualOperator", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}, {"oid": "2330", "descr": "greater than", "oprcom": "~<~(bpchar,bpchar)", "oprcode": "bpchar_pattern_gt", "oprjoin": "scalargtjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~>~", "oprrest": "scalargtsel", "oprowner": "POSTGRES", "oprright": "bpchar", "oprnegate": "~<=~(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f", "oprnamespace": "pg_catalog"}], "signature": "character [ ( n ) ]", "tables_zh": [], "description": ["定长字符串"], "manual_html": "", "manual_path": "datatype-character.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/18/datatype-character.html", "method": "same-major semantic node", "sha256": "1b410c231f113ce255ee6b8ce70f72d0caa18402458df477bf254d2989b0874e", "language": "zh", "matched_nodes": ["#DATATYPE-CHARACTER/div[0]", "#DATATYPE-CHARACTER/div[19]/h3[0]", "#DATATYPE-CHARACTER/div[19]/p[1]", "#DATATYPE-CHARACTER/div[21]/div[1]/div[1]/table[0]/tr[0]/td[1]", "#DATATYPE-CHARACTER/div[21]/p[0]", "#DATATYPE-CHARACTER/div[24]/div[1]/table[0]/tbody[2]/tr[0]/td[2]", "#DATATYPE-CHARACTER/div[24]/div[1]/table[0]/tbody[2]/tr[1]/td[2]", "#DATATYPE-CHARACTER/div[24]/p[0]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[0]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[1]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[2]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/tbody[2]/tr[3]/td[1]", "#DATATYPE-CHARACTER/div[9]/div[1]/table[0]/thead[1]/tr[0]/th[0]", "#DATATYPE-CHARACTER/div[9]/p[0]", "#DATATYPE-CHARACTER/p[11]", "#DATATYPE-CHARACTER/p[12]", "#DATATYPE-CHARACTER/p[13]", "#DATATYPE-CHARACTER/p[14]", "#DATATYPE-CHARACTER/p[16]", "#DATATYPE-CHARACTER/p[17]", "#DATATYPE-CHARACTER/p[20]"]}, {"url": "/docs/18/functions-matching.html", "method": "same-major semantic node", "sha256": "704120d783880b39b956c073d1a82ba1f40b35068b4d3b9a195f543b86c3a22a", "language": "zh", "matched_nodes": ["#FUNCTIONS-MATCHING/div[9]/div[51]/p[2]/em[2]"]}, {"url": "/docs/18/protocol-overview.html", "method": "same-major semantic node", "sha256": "3f1aa8bd4dbef58e9a82e8cf4c82829a4df7416cfa83dd61c18e9e25060f22da", "language": "zh", "matched_nodes": ["#PROTOCOL-OVERVIEW/div[9]/p[1]/span[2]/span[0]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "fixed-length character string", "/versions/18/facts/0/label": "Catalog name", "/versions/18/facts/1/label": "Type OID", "/versions/18/facts/2/label": "Type kind", "/versions/18/facts/2/value": "Base type", "/versions/18/facts/3/label": "Declared length", "/versions/18/facts/3/value": "Variable length (varlena)", "/versions/18/facts/4/label": "Storage strategy", "/versions/18/facts/4/value": "extended", "/versions/18/facts/5/label": "Input function", "/versions/18/facts/6/label": "Output function", "/versions/18/facts/7/label": "Documented declaration", "/versions/18/facts/8/label": "Manual description", "/versions/18/facts/8/value": "fixed-length, blank-padded", "/versions/18/facts/9/label": "Documented declaration", "/versions/18/facts/10/label": "Manual description", "/versions/18/facts/10/value": "variable unlimited length, blank-trimmed", "/versions/18/related/0/label": "pg_type catalog", "/versions/18/related/1/label": "pg_cast catalog", "/versions/18/related/2/label": "pg_operator catalog", "/versions/18/related/3/label": "pg_opclass catalog", "/versions/18/related/4/label": "Arrays", "/versions/18/related/5/label": "brin index access method", "/versions/18/related/6/label": "btree index access method", "/versions/18/related/7/label": "hash index access method"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "432ffb638535f07515c24d6a2a1234980873515a38383f1eb34c90e10788bac5", "canonical_center_text_hash": "b1a48208d3a00e6ef6b8d4ec3cf8e8705272b5e061e0c77b0df9aa1d0b136fb1"}, "description_zh": "定长字符串", "comparison_data": {"casts": [{"castfunc": "0", "castmethod": "b", "castsource": "xml", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "bpchar(char)", "castmethod": "f", "castsource": "char", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "bpchar(name)", "castmethod": "f", "castsource": "name", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "char(text)", "castmethod": "f", "castsource": "bpchar", "casttarget": "char", "castcontext": "a"}, {"castfunc": "text(bool)", "castmethod": "f", "castsource": "bool", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "text(inet)", "castmethod": "f", "castsource": "cidr", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "text(inet)", "castmethod": "f", "castsource": "inet", "casttarget": "bpchar", "castcontext": "a"}, {"castfunc": "xml", "castmethod": "f", "castsource": "bpchar", "casttarget": "xml", "castcontext": "e"}, {"castfunc": "0", "castmethod": "b", "castsource": "text", "casttarget": "bpchar", "castcontext": "i"}, {"castfunc": "0", "castmethod": "b", "castsource": "varchar", "casttarget": "bpchar", "castcontext": "i"}, {"castfunc": "bpchar(bpchar,int4,bool)", "castmethod": "f", "castsource": "bpchar", "casttarget": "bpchar", "castcontext": "i"}, {"castfunc": "name(bpchar)", "castmethod": "f", "castsource": "bpchar", "casttarget": "name", "castcontext": "i"}, {"castfunc": "text(bpchar)", "castmethod": "f", "castsource": "bpchar", "casttarget": "text", "castcontext": "i"}, {"castfunc": "text(bpchar)", "castmethod": "f", "castsource": "bpchar", "casttarget": "varchar", "castcontext": "i"}], "facts": [{"label": "Catalog name", "value": "pg_catalog.bpchar"}, {"label": "Declared length", "value": "Variable length (varlena)"}, {"label": "Documented declaration", "value": "bpchar"}, {"label": "Documented declaration", "value": "character( n ) , char( n ) , bpchar( n )"}, {"label": "Input function", "value": "bpcharin"}, {"label": "Output function", "value": "bpcharout"}, {"label": "Storage strategy", "value": "extended"}, {"label": "Type OID", "value": "1042"}, {"label": "Type kind", "value": "Base type"}], "ranges": [], "aliases": ["bpchar", "char [ ( n ) ]"], "catalog": {"typacl": "_null_", "typlen": "-1", "typelem": "0", "typname": "bpchar", "typsend": "bpcharsend", "typtype": "b", "typalign": "i", "typarray": "_bpchar", "typbyval": "f", "typdelim": ",", "typinput": "bpcharin", "typmodin": "bpchartypmodin", "typndims": "0", "typrelid": "0", "typmodout": "bpchartypmodout", "typoutput": "bpcharout", "typtypmod": "-1", "typanalyze": "-", "typdefault": "_null_", "typnotnull": "f", "typreceive": "bpcharrecv", "typstorage": "x", "typbasetype": "0", "typcategory": "S", "typcollation": "default", "typisdefined": "t", "typsubscript": "-", "typdefaultbin": "_null_", "typispreferred": "f", "array_type_name": "_bpchar"}, "operators": [{"oprcom": "~<=~(bpchar,bpchar)", "oprcode": "bpchar_pattern_ge", "oprjoin": "scalargejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~>=~", "oprrest": "scalargesel", "oprright": "bpchar", "oprnegate": "~<~(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "~<~(bpchar,bpchar)", "oprcode": "bpchar_pattern_gt", "oprjoin": "scalargtjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~>~", "oprrest": "scalargtsel", "oprright": "bpchar", "oprnegate": "~<=~(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "~>=~(bpchar,bpchar)", "oprcode": "bpchar_pattern_le", "oprjoin": "scalarlejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~<=~", "oprrest": "scalarlesel", "oprright": "bpchar", "oprnegate": "~>~(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "~>~(bpchar,bpchar)", "oprcode": "bpchar_pattern_lt", "oprjoin": "scalarltjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~<~", "oprrest": "scalarltsel", "oprright": "bpchar", "oprnegate": "~>=~(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "<=(bpchar,bpchar)", "oprcode": "bpcharge", "oprjoin": "scalargejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": ">=", "oprrest": "scalargesel", "oprright": "bpchar", "oprnegate": "<(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "<(bpchar,bpchar)", "oprcode": "bpchargt", "oprjoin": "scalargtjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": ">", "oprrest": "scalargtsel", "oprright": "bpchar", "oprnegate": "<=(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpchariclike", "oprjoin": "iclikejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~~*", "oprrest": "iclikesel", "oprright": "text", "oprnegate": "!~~*(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharicnlike", "oprjoin": "icnlikejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~~*", "oprrest": "icnlikesel", "oprright": "text", "oprnegate": "~~*(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharicregexeq", "oprjoin": "icregexeqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~*", "oprrest": "icregexeqsel", "oprright": "text", "oprnegate": "!~*(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharicregexne", "oprjoin": "icregexnejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~*", "oprrest": "icregexnesel", "oprright": "text", "oprnegate": "~*(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": ">=(bpchar,bpchar)", "oprcode": "bpcharle", "oprjoin": "scalarlejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "<=", "oprrest": "scalarlesel", "oprright": "bpchar", "oprnegate": ">(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharlike", "oprjoin": "likejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~~", "oprrest": "likesel", "oprright": "text", "oprnegate": "!~~(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": ">(bpchar,bpchar)", "oprcode": "bpcharlt", "oprjoin": "scalarltjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "<", "oprrest": "scalarltsel", "oprright": "bpchar", "oprnegate": ">=(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "<>(bpchar,bpchar)", "oprcode": "bpcharne", "oprjoin": "neqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "<>", "oprrest": "neqsel", "oprright": "bpchar", "oprnegate": "=(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharnlike", "oprjoin": "nlikejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~~", "oprrest": "nlikesel", "oprright": "text", "oprnegate": "~~(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharregexeq", "oprjoin": "regexeqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "~", "oprrest": "regexeqsel", "oprright": "text", "oprnegate": "!~(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "0", "oprcode": "bpcharregexne", "oprjoin": "regexnejoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "!~", "oprrest": "regexnesel", "oprright": "text", "oprnegate": "~(bpchar,text)", "oprresult": "bool", "oprcanhash": "f", "oprcanmerge": "f"}, {"oprcom": "=(bpchar,bpchar)", "oprcode": "bpchareq", "oprjoin": "eqjoinsel", "oprkind": "b", "oprleft": "bpchar", "oprname": "=", "oprrest": "eqsel", "oprright": "bpchar", "oprnegate": "<>(bpchar,bpchar)", "oprresult": "bool", "oprcanhash": "t", "oprcanmerge": "t"}], "operator_classes": [{"opcname": "bpchar_bloom_ops", "opcfamily": "brin/bpchar_bloom_ops", "opcintype": "bpchar", "opcmethod": "brin", "opcdefault": "f", "opckeytype": "bpchar"}, {"opcname": "bpchar_pattern_ops", "opcfamily": "btree/bpchar_pattern_ops", "opcintype": "bpchar", "opcmethod": "btree", "opcdefault": "f", "opckeytype": "0"}, {"opcname": "bpchar_pattern_ops", "opcfamily": "hash/bpchar_pattern_ops", "opcintype": "bpchar", "opcmethod": "hash", "opcdefault": "f", "opckeytype": "0"}, {"opcname": "bpchar_minmax_ops", "opcfamily": "brin/bpchar_minmax_ops", "opcintype": "bpchar", "opcmethod": "brin", "opcdefault": "t", "opckeytype": "bpchar"}, {"opcname": "bpchar_ops", "opcfamily": "btree/bpchar_ops", "opcintype": "bpchar", "opcmethod": "btree", "opcdefault": "t", "opckeytype": "0"}, {"opcname": "bpchar_ops", "opcfamily": "hash/bpchar_ops", "opcintype": "bpchar", "opcmethod": "hash", "opcdefault": "t", "opckeytype": "0"}]}, "comparison_hash": "c919b9d0d7c957587e465b4e303053254bc2e18629d071763a9a51925b4416c8", "manual_language": "zh", "operator_classes": [{"opcname": "bpchar_ops", "opcowner": "POSTGRES", "opcfamily": "btree/bpchar_ops", "opcintype": "bpchar", "opcmethod": "btree", "opcdefault": "t", "opckeytype": "0", "opcnamespace": "pg_catalog"}, {"opcname": "bpchar_ops", "opcowner": "POSTGRES", "opcfamily": "hash/bpchar_ops", "opcintype": "bpchar", "opcmethod": "hash", "opcdefault": "t", "opckeytype": "0", "opcnamespace": "pg_catalog"}, {"oid": "4219", "opcname": "bpchar_pattern_ops", "opcowner": "POSTGRES", "opcfamily": "btree/bpchar_pattern_ops", "opcintype": "bpchar", "opcmethod": "btree", "oid_symbol": "BPCHAR_BTREE_PATTERN_OPS_OID", "opcdefault": "f", "opckeytype": "0", "opcnamespace": "pg_catalog"}, {"opcname": "bpchar_pattern_ops", "opcowner": "POSTGRES", "opcfamily": "hash/bpchar_pattern_ops", "opcintype": "bpchar", "opcmethod": "hash", "opcdefault": "f", "opckeytype": "0", "opcnamespace": "pg_catalog"}, {"opcname": "bpchar_minmax_ops", "opcowner": "POSTGRES", "opcfamily": "brin/bpchar_minmax_ops", "opcintype": "bpchar", "opcmethod": "brin", "opcdefault": "t", "opckeytype": "bpchar", "opcnamespace": "pg_catalog"}, {"opcname": "bpchar_bloom_ops", "opcowner": "POSTGRES", "opcfamily": "brin/bpchar_bloom_ops", "opcintype": "bpchar", "opcmethod": "brin", "opcdefault": "f", "opckeytype": "bpchar", "opcnamespace": "pg_catalog"}], "description_zh_html": "<p>定长字符串</p><h3>同版本中文手册定义</h3><table><tbody><tr><td><code>bpchar</code></td><td>无限长度的变长，忽略尾随空格</td></tr></tbody></table><p><a href=\"/zh/docs/18/datatype-character.html\" rel=\"nofollow\">查看完整中文手册与上下文</a>。</p>", "manual_documentation": "dedicated family chapter", "center_zh_rendered": "<p>定长字符串</p><h3>同版本中文手册定义</h3><table><tbody><tr><td><code>bpchar</code></td><td>无限长度的变长，忽略尾随空格</td></tr></tbody></table><p><a href=\"/docs/18/datatype-character.html\">查看完整中文手册与上下文</a>。</p>"}, "from": "17", "comparison": {"available": true, "changes": [], "prose_changed": false}}