[OpenSIPS-Users] use DB_STRING as default

[Nick]

Hello

My Opensips Server versions is 1.7.1.
MySQL Version is 5.1.

I have create some table for my project. But I get this error.
WARNING:db_mysql:db_mysql_get_columns: unhandled data type column 
(err_code) type id (251), use DB_STRING as default

If I downgrade mysql version to 5.0.
I can't get this error.

Can everyone give me a suggestion??

Thanks