| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: 9.5: Memory-bounded HashAgg |
| Date: | 2014-12-28 21:14:50 |
| Message-ID: | 1419801290.24895.77.camel@jeff-desktop |
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| Lists: | pgsql-hackers |
On Thu, 2014-12-11 at 02:46 -0800, Jeff Davis wrote:
> On Sun, 2014-08-10 at 14:26 -0700, Jeff Davis wrote:
> > This patch is requires the Memory Accounting patch, or something similar
> > to track memory usage.
> >
> > The attached patch enables hashagg to spill to disk, which means that
> > hashagg will contain itself to work_mem even if the planner makes a
> > bad misestimate of the cardinality.
>
> New patch attached. All open items are complete, though the patch may
> have a few rough edges.
>
This thread got moved over here:
http://www.postgresql.org/message-id/1419326161.24895.13.camel@jeff-desktop
Regards,
Jeff Davis
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