LATIN4

ISO 8859-4, ECMA 94

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Encoding: LATIN4
Encoding id: 11
Language: North European
Server?: Yes
Icu?: Yes
Bytes/char: 1
aliases: iso88594, latin4
manual path: /docs/18/multibyte.html#MULTIBYTE-CHARSET-SUPPORTED
signature: 未知

版本定义 PG 18

23.3.1. Supported Character Sets

Table 23.3 shows the character sets available for use in PostgreSQL.

Table 23.3. PostgreSQL Character Sets

Name	Description	Language	Server?	ICU?	Bytes/Char	Aliases
`BIG5`	Big Five	Traditional Chinese	No	No	1–2	`WIN950`, `Windows950`
`EUC_CN`	Extended UNIX Code-CN	Simplified Chinese	Yes	Yes	1–3
`EUC_JP`	Extended UNIX Code-JP	Japanese	Yes	Yes	1–3
`EUC_JIS_2004`	Extended UNIX Code-JP, JIS X 0213	Japanese	Yes	No	1–3
`EUC_KR`	Extended UNIX Code-KR	Korean	Yes	Yes	1–3
`EUC_TW`	Extended UNIX Code-TW	Traditional Chinese, Taiwanese	Yes	Yes	1–4
`GB18030`	National Standard	Chinese	No	No	1–4
`GBK`	Extended National Standard	Simplified Chinese	No	No	1–2	`WIN936`, `Windows936`
`ISO_8859_5`	ISO 8859-5, ECMA 113	Latin/Cyrillic	Yes	Yes	1
`ISO_8859_6`	ISO 8859-6, ECMA 114	Latin/Arabic	Yes	Yes	1
`ISO_8859_7`	ISO 8859-7, ECMA 118	Latin/Greek	Yes	Yes	1
`ISO_8859_8`	ISO 8859-8, ECMA 121	Latin/Hebrew	Yes	Yes	1
`JOHAB`	JOHAB	Korean (Hangul)	No	No	1–3
`KOI8R`	KOI8-R	Cyrillic (Russian)	Yes	Yes	1	`KOI8`
`KOI8U`	KOI8-U	Cyrillic (Ukrainian)	Yes	Yes	1
`LATIN1`	ISO 8859-1, ECMA 94	Western European	Yes	Yes	1	`ISO88591`
`LATIN2`	ISO 8859-2, ECMA 94	Central European	Yes	Yes	1	`ISO88592`
`LATIN3`	ISO 8859-3, ECMA 94	South European	Yes	Yes	1	`ISO88593`
`LATIN4`	ISO 8859-4, ECMA 94	North European	Yes	Yes	1	`ISO88594`
`LATIN5`	ISO 8859-9, ECMA 128	Turkish	Yes	Yes	1	`ISO88599`
`LATIN6`	ISO 8859-10, ECMA 144	Nordic	Yes	Yes	1	`ISO885910`
`LATIN7`	ISO 8859-13	Baltic	Yes	Yes	1	`ISO885913`
`LATIN8`	ISO 8859-14	Celtic	Yes	Yes	1	`ISO885914`
`LATIN9`	ISO 8859-15	LATIN1 with Euro and accents	Yes	Yes	1	`ISO885915`
`LATIN10`	ISO 8859-16, ASRO SR 14111	Romanian	Yes	No	1	`ISO885916`
`MULE_INTERNAL`	Mule internal code	Multilingual Emacs	Yes	No	1–4
`SJIS`	Shift JIS	Japanese	No	No	1–2	`Mskanji`, `ShiftJIS`, `WIN932`, `Windows932`
`SHIFT_JIS_2004`	Shift JIS, JIS X 0213	Japanese	No	No	1–2
`SQL_ASCII`	unspecified (see text)	any	Yes	No	1
`UHC`	Unified Hangul Code	Korean	No	No	1–2	`WIN949`, `Windows949`
`UTF8`	Unicode, 8-bit	all	Yes	Yes	1–4	`Unicode`
`WIN866`	Windows CP866	Cyrillic	Yes	Yes	1	`ALT`
`WIN874`	Windows CP874	Thai	Yes	No	1
`WIN1250`	Windows CP1250	Central European	Yes	Yes	1
`WIN1251`	Windows CP1251	Cyrillic	Yes	Yes	1	`WIN`
`WIN1252`	Windows CP1252	Western European	Yes	Yes	1
`WIN1253`	Windows CP1253	Greek	Yes	Yes	1
`WIN1254`	Windows CP1254	Turkish	Yes	Yes	1
`WIN1255`	Windows CP1255	Hebrew	Yes	Yes	1
`WIN1256`	Windows CP1256	Arabic	Yes	Yes	1
`WIN1257`	Windows CP1257	Baltic	Yes	Yes	1
`WIN1258`	Windows CP1258	Vietnamese	Yes	Yes	1	`ABC`, `TCVN`, `TCVN5712`, `VSCII`

Not all client APIs support all the listed character sets. For example, the PostgreSQL JDBC driver does not support MULE_INTERNAL, LATIN6, LATIN8, and LATIN10.

The SQL_ASCII setting behaves considerably differently from the other settings. When the server character set is SQL_ASCII, the server interprets byte values 0–127 according to the ASCII standard, while byte values 128–255 are taken as uninterpreted characters. No encoding conversion will be done when the setting is SQL_ASCII. Thus, this setting is not so much a declaration that a specific encoding is in use, as a declaration of ignorance about the encoding. In most cases, if you are working with any non-ASCII data, it is unwise to use the SQL_ASCII setting because PostgreSQL will be unable to help you by converting or validating non-ASCII characters.

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完整来源事实

attributes

{"Bytes/Char":"1","ICU?":"Yes","Language":"North European","Server?":"Yes","encoding":"LATIN4","encoding_id":"11"}

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定义来源

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

正文语言: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f