To resolve this issue, follow the below steps:
1) Login to your Spotfire Server machine and launch "TIBCO Spotfire Server Configuration Tool" (UIConfig).
2) Enter your bootstrap password and then click on the "Configuration" Tab.
3) Now click on the "Data Source Template" and take a backup of MySQL data source template.
4) From MySQL jdbc template remove:
<sql-runtime>
com.spotfire.ws.im.ds.sql.mysql.MySQLDriverSQLRuntime
</sql-runtime>
5) Save the configuration and then open the Information Designer once again.
6) Then set "FETCH SIZE" in data source element(Information Designer) to 0 and save data source element. This tells driver to use it's own default value.