Re: POC: GROUP BY optimization
От | Dmitry Dolgov |
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Тема | Re: POC: GROUP BY optimization |
Дата | |
Msg-id | 20201026085721.g6h5xljxvodnmk34@localhost обсуждение исходный текст |
Ответ на | Re: POC: GROUP BY optimization (Pavel Borisov <pashkin.elfe@gmail.com>) |
Ответы |
Re: POC: GROUP BY optimization
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Список | pgsql-hackers |
> On Mon, Oct 26, 2020 at 12:44:58PM +0400, Pavel Borisov wrote: > > > > > > I wonder if anyone has plans to try again with this optimization in v14 > > cycle? The patches no longer apply thanks to the incremental sort patch, > > but I suppose fixing that should not be extremely hard. > > > > I found this feature interesting and I'd like to join. > PFA the updated version of the patch made fully compatible with changes in > v13 and I suppose it is ready to be reviewed for v14. > > Main things changed: > 1. Patch is made compatible with new lists representation ( 1cff1b95ab6d ) > 2. Patch is made compatible with the incremental sort ( d2d8a229bc58 and > ba3e76cc571e ) > 3. Tests are changed to represent changes in keys numbering and > naming convention in the plan ( 55a1954da16 and 6ef77cf46e8 ) > > As always your ideas are very much welcome! Hi, Thanks for your interest! FYI there is a new thread about this topic [1] with the next version of the patch and more commentaries (I've created it for visibility purposes, but probably it also created some confusion, sorry for that). [1]: https://www.postgresql.org/message-id/flat/CA%2Bq6zcW_4o2NC0zutLkOJPsFt80megSpX_dVRo6GK9PC-Jx_Ag%40mail.gmail.com
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