Data conversion issues with MySQL driver 5.0.8

The MySQL JDBC driver version 5.0.8 may cause data conversion errors in the Pentaho Server. For example, SQL statements that convert a numeric field to a string are returned as a string in version 5.0.7, but return as a byte array in version 5.0.8.

To solve this problem, you must replace the mysql-connector-java-5.0.8.jar with the mysql-connector-java-5.0.7.jar in your client tool or application server's lib folder