Jeff Davis writes:
> On Mon, 2020-03-23 at 02:05 -0400, Tom Lane wrote:
>> If there's no way to test the feature in some significantly-cheaper
>> way,
>> perhaps we should move this test out to a separate script that's not
>> run
>> by default.
> I'll rework the tests. I wanted to be a bit more a
On Mon, 2020-03-23 at 02:05 -0400, Tom Lane wrote:
> If there's no way to test the feature in some significantly-cheaper
> way,
> perhaps we should move this test out to a separate script that's not
> run
> by default.
I'll rework the tests. I wanted to be a bit more aggressive about
testing right
Jeff Davis writes:
> Disk-based Hash Aggregation.
I noticed that the regression tests seemed suddenly slower than they
have been. A bit of poking around reveals that this patch made
groupingsets.sql take approximately 8X longer than it used to,
and more than twice as long as any other core regre
Disk-based Hash Aggregation.
While performing hash aggregation, track memory usage when adding new
groups to a hash table. If the memory usage exceeds work_mem, enter
"spill mode".
In spill mode, new groups are not created in the hash table(s), but
existing groups continue to be advanced if input
