"Todd A. Cook" <[EMAIL PROTECTED]> writes:
> I am consistently running into out-of-memory issues in 8.1.4 running on
> RHEL3 and 8.0.5 on RHEL4.  The logs show entries like this:

> AggContext: -2130714624 total in 271 blocks; 9688 free (269 chunks); 
> -2130724312 used
> TupleHashTable: 893902872 total in 119 blocks; 1088688 free (449 chunks); 
> 892814184 used

Misestimated hash aggregation, perhaps?  What is the query and what does
EXPLAIN show for it?  What have you got work_mem set to?

                        regards, tom lane

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