On Wed, May 21, 2003 at 04:39:18PM -0400, Tom Lane wrote:
> "Jim C. Nasby" <jim@nasby.net> writes:
> > On Tue, May 20, 2003 at 12:58:41AM -0400, Tom Lane wrote:
> >> How many rows would you expect this command to insert?
> >>
> >> You might be running into the fact that pending-trigger-call lists are
> >> kept in memory, but it's hard to tell without knowing the number of
> >> rows involved...
>
> > 35M
>
> Each pending deferred-trigger action takes about 40 bytes + palloc
> overhead, probably 48 bytes altogether ... 48 * 35M comes to 1.68G, so
> that's exactly where your problem is. I'd suggest trying to commit the
> changes in smaller batches ...
Ugh... would two triggers double that? Where can I get more info on
what's happening under the covers here, especially on what a deferred
trigger is?
--
Jim C. Nasby (aka Decibel!) jim@nasby.net
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