Redshift JDBC driver DatabaseMetadata.getTypeInfo does not include reference to new INTERVAL types

Amazon Redshift JDBC 2.1.0.26

Redshift introduced INTERVAL types
https://docs.aws.amazon.com/redshift/latest/dg/r_interval_data_types.html

JDBC driver method getTypeInfo does not describe the new types
https://docs.oracle.com/javase/8/docs/api/java/sql/DatabaseMetaData.html#getTypeInfo--


Start by locating the JDBC DatabaseMetaData implementation of getTypeInfo and compare its reported types with the INTERVAL types described in the linked Amazon Redshift documentation. Use the JDBC getTypeInfo specification to verify the expected metadata, then add coverage for the missing types and confirm the driver reports them.

Written by the indexing model from the issue text.