"Relyea, Mike" <[EMAIL PROTECTED]> writes:
> I've zipped the results of EXPLAIN INSERT INTO "tblSummary" SELECT *
> FROM "qrySummary"; for my case. It's a zip file that I've renamed to
> .txt in order to get around the attachment being blocked by certain mail
> servers.
Egad, what a mess :-(. By my count you have 89 hash joins, 24 sorts,
and 8 hash aggregations in there. In total these will feel authorized
to use 121 times work_mem. Since you've got work_mem set to 256 meg,
an out-of-memory condition doesn't seem that surprising. You need to
make work_mem drastically smaller for this query. Or else break it down
into multiple steps.
regards, tom lane
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