presto-base-jdbc/src/main/java/io/prestosql/plugin/jdbc/ForwardingJdbcClient.java/ForwardingJdbcClient/getTableHandle
class ForwardingJdbcClient:    @Override
    public Optional<JdbcTableHandle> getTableHandle(JdbcIdentity identity, SchemaTableName schemaTableName)
    {
        return getDelegate().getTableHandle(identity, schemaTableName);
    }