Installing a JDBC Driver

The credentials used to authenticate with Amazon Redshift determine whether you need to install a JDBC driver:

Instance profile: When using an instance profile to authenticate with Redshift, you do not need to install a JDBC driver. The Amazon Redshift destination uses a JDBC driver included with the destination.
AWS access keys: When using AWS access keys to authenticate with Redshift, you must install an Amazon Redshift JDBC driver.; Install the latest available Amazon Redshift JDBC driver that does not contain the AWS SDK. For a list of supported drivers that do not include the AWS SDK, see the Amazon Redshift documentation.; Install the driver as an external library for the AWS Redshift cluster-provided libraries stage library.

Transformer bundles a JDBC driver into the launched Spark application so that the driver is available on each node in the cluster.