Обсуждение: whether I can add a new encoding?
The pg_wchar.h file comments "We must avoid renumbering any backend encoding until libpq's major version number is increased beyond 5", Can I add a new server-side encoding, GBK18030, and place it after PG_KOI8U in PG10.6?
> The pg_wchar.h file comments "We must avoid renumbering any backend encoding until libpq's major version number is increasedbeyond 5", Can I add a new server-side encoding, GBK18030, and place it after PG_KOI8U in PG10.6? What's GBK18030? Can you please give a pointer to a specification of GBK18030? Best reagards, -- Tatsuo Ishii SRA OSS LLC English: http://www.sraoss.co.jp/index_en/ Japanese:http://www.sraoss.co.jp
"=?ISO-8859-1?B?UGFuZG9yYQ==?=" <yeyukui@qq.com> writes:
> The pg_wchar.h file comments "We must avoid renumbering any backend encoding until libpq's major version number is
increasedbeyond 5", Can I add a new server-side encoding, GBK18030, and place it after PG_KOI8U in PG10.6?
What is GBK18030? If it's related to either GBK or GB18030,
then it'd be unsafe to use as a server encoding because it's not a
strict ASCII superset (that is, it has multibyte characters in
which not all bytes have the high bit set). The lack of room for
a new server encoding in the pg_enc enum has seemed like a mostly
hypothetical problem because of that restriction.
regards, tom lane