> 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? 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