check_mb_gb2312 467 mysqlnd/mysqlnd_charset.c { 24, "gb2312", "gb2312_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_gb2312, check_mb_gb2312}, check_mb_gb2312 533 mysqlnd/mysqlnd_charset.c { 86, "gb2312", "gb2312_bin", 1, 2, "", mysqlnd_mbcharlen_gb2312, check_mb_gb2312},