Major Description
We should deprecate QueryServices.DEFAULT_TABLE_ISTRANSACTIONAL_ATTRIB and instead have a QueryServices.DEFAULT_TRANSACTION_PROVIDER now that we'll have two transaction providers: Tephra and Omid. Along the same lines, we should add a TRANSACTION_PROVIDER column to SYSTEM.CATALOG and stop using the IS_TRANSACTIONAL table property. For backwards compatibility, we can assume the provider is Tephra if the existing properties are set to true.