Re: Reducing the memory footprint of large sets of pending triggers

Simon Riggs <simon@2ndQuadrant.com> writes:
> A much better objective would be to remove duplicate trigger calls, so
> there isn't any build up of trigger data in the first place. That would
> apply only to immutable functions. RI checks certainly fall into that
> category.

They're hardly "duplicates": each event is for a different tuple.

For RI checks, once you get past a certain percentage of the table it'd
be better to throw away all the per-tuple events and do a full-table
verification a la RI_Initial_Check().  I've got no idea about a sane
way to make that happen, though.
        regards, tom lane