vitess.io/vitess@v0.16.2/go/mysql/collations/internal/charset/testdata (about) candide-gb18030.txt rashomon-iso2022jp.txt rashomon-sjis.txt rashomon-ujis.txt sunzi-bingfa-gb-levels-1-and-2-hz-gb2312.txt sunzi-bingfa-simplified-gbk.txt sunzi-bingfa-traditional-big5.txt unsu-joh-eun-nal-euckr.txt