Holger Krug <hkrug(at)rationalizer(dot)com> writes:
> The proposal consists in generalizing the PostgreSQL deferred trigger
> mechanism to more general types of events.
While I have no inherent objection to that, I'm not seeing what it's
good for either. What SQL feature would be associated with this?
> One use case would be a PostgreSQL procedure `mark_tx_rollback()' to
> mark a transaction for rollback.
This is unconvincing, since Postgres has no need for rollback procedures
(and I personally will disagree with any attempt to introduce 'em; if
you need one then you have a problem doing crash recovery).
regards, tom lane
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