[parser]: '(' ')' could coexist with alias. e.g., select * from (dual) a;

src/sql/parser/sql_parser_mysql_mode.l

@@ -936,7 +936,6 @@ Timestamp{whitespace}?\"[^\"]*\" {
     }
   }
 }
-<hint>APPEND  { return APPEND; }
 <hint>NO_GATHER_OPTIMIZER_STATISTICS  { return NO_GATHER_OPTIMIZER_STATISTICS; }
 <hint>GATHER_OPTIMIZER_STATISTICS  { return GATHER_OPTIMIZER_STATISTICS; }
 <hint>LOG_LEVEL  { return LOG_LEVEL; }