Re: Memory-Bounded Hash Aggregation - Mailing list pgsql-hackers

From Jeff Davis
Subject Re: Memory-Bounded Hash Aggregation
Date
Msg-id bd6edb713f0e3c9ecb7f08a6b4bb3f469c6cf152.camel@j-davis.com
Whole thread Raw
In response to Re: Memory-Bounded Hash Aggregation  (Jeff Davis <pgsql@j-davis.com>)
Responses Re: Memory-Bounded Hash Aggregation  (Justin Pryzby <pryzby@telsasoft.com>)
List pgsql-hackers
On Wed, 2020-02-26 at 19:14 -0800, Jeff Davis wrote:
> Rebased on your change. This simplified the JIT and interpretation
> code
> quite a bit.

Attached another version.

 * tweaked EXPLAIN output some more
 * rebased and cleaned up
 * Added back the enable_hashagg_disk flag (defaulting to on). I've
gone back and forth on this, but it seems like a good idea to have it
there. So now there are a total of two GUCs: enable_hashagg_disk and
enable_groupingsets_hash_disk

Unless I (or someone else) finds something significant, this is close
to commit.

Regards,
     Jeff Davis


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