Re: 9.5: Memory-bounded HashAgg - Mailing list pgsql-hackers

From Jeff Davis
Subject Re: 9.5: Memory-bounded HashAgg
Date
Msg-id 1419801290.24895.77.camel@jeff-desktop
Whole thread Raw
In response to Re: 9.5: Memory-bounded HashAgg  (Jeff Davis <pgsql@j-davis.com>)
List 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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