hi,
I am using hibernate with my j2ee application, my database is mysql server 5.1, and i am using group_concat function of mysql. In local system it is working fine with any error. when I am deploying application on window server it is giving me an error no dialect mapping for jdbc type:-1 and no dialect mapping for jdbc type : -4, I have used group_concat in my sub query.

Please let me know is there any compatibility issue with hibernate or any problem in mysql server 5.1 (I have modified mysql configuration file, my.ini with group_concat_max_len=1024)

Plaese help me,

Thanks
Manveer Singh