When locale is "ja_JP.SJIS", nl_langinfo(CODESET) returns "SHIFT_JIS"
on some platforms, at least on RedHat Linux. So the encoding/locale
match table (encoding_match_list) needs the entry. Otherwise client
encoding is set to SQL_ASCII.
Back patch to all supported branches.
{PG_SJIS, "SJIS"},
{PG_SJIS, "PCK"},
{PG_SJIS, "CP932"},
+ {PG_SJIS, "SHIFT_JIS"},
{PG_BIG5, "BIG5"},
{PG_BIG5, "BIG5HKSCS"},