SyntaxError as being parsed

[santiagochen]

SyntaxError: Expected "FROM", "GROUP", "LIMIT", "ORDER", "UNION", "WHERE", WHITE_SPACE, or end of input but "A" found;
e.g. mysql is:
SELECT dd, Max(IF(stat_key = 'yys', stat_us, 0)) AS 'yys_users' FROM waf.t_cpkg WHERE stat_ty = 'waf_ty' GROUP BY dd;
could you please take a look, and update to fix the bug?