Results 2 issues of 谢超

As the title suggests, I encountered the SQL_INVALID_HANDLE error from SQLGetData function. It appears that the Driver::call function is not thread safe. To address this issue, I attempted to add...

### table info ``` -- table define CREATE TABLE `t0` ( `id` int(11) NOT NULL AUTO_INCREMENT, `c1` int(11) NOT NULL, `c2` varchar(64) COLLATE utf8mb4_bin NOT NULL, `c3` bit(4) DEFAULT NULL,...