Hi everyone, I want to rework type conversion system in connector and flink table module to be resuable and scalability. I Postgres system, the type '_citext' will not supported in org.apache.flink.connector.jdbc.catalog.PostgresCatalog#fromJDBCType. what's more, org.apache.flink.table.runtime.typeutils.InternalSerializers#createInternal cannnot support the TIMESTAMP_WITH_TIME_ZONE. For more background and api design : https://issues.apache.org/jira/browse/FLINK-23122. Please let me know if this matches your thoughts.
Regards,Jack
