When connecting Looker to your database, you can specify additional Java Database Connectivity (JDBC) parameters.

When connecting Looker to your database, you can specify additional Java Database Connectivity (JDBC) parameters. To maintain security, Looker restricts the allowed values for certain parameters. For the JDBC parameters that have a restricted set of allowed values, the allowed values are listed in the "Supported JDBC parameters" section of the database configuration instructions page for your dialect.