User may receive the following error during execution of Tableau reports after upgrading from GPDB6 to GPDB7
current transaction is aborted, commands ignored until end of transaction block
The following error is the primary cause of the Tableau report failure:
ERROR","42703","column c.relhasoids does not exist
relhasoids no longer exists as Postgres 12 (GPDB7) and above, and oid is no longer a special column.
Tableau postgresql driver need to be upgraded to support the current running version of GPDB