Jim Nasby <decibel@decibel.org> writes:
> Any time this happens it's generally a nasty surprise for users.

Really? Running out of work memory is expected on large tables.

> It would be nice to throw them an explicit warning that it's occurring.

I think this is a bad idea. It's furthermore pretty useless in the
autovacuum world, since no one is likely to see the warning.

regards, tom lane

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