Re: apply_scanjoin_target_to_paths and partitionwise join - Mailing list pgsql-hackers

From Robert Haas
Subject Re: apply_scanjoin_target_to_paths and partitionwise join
Date
Msg-id CA+TgmoaTiKiMh7tGDbC1rz_Yvu_Op=uENJJ0i_xr2Uu_fBWOSQ@mail.gmail.com
Whole thread Raw
In response to Re: apply_scanjoin_target_to_paths and partitionwise join  (arne.roland@malkut.net)
List pgsql-hackers
On Fri, May 24, 2024 at 2:02 PM <arne.roland@malkut.net> wrote:
> I am not sure, whether it's really a bug. I personally wouldn't be brave
> enough to back patch this. I don't want to deal with complaining end
> users. Suddenly their optimizer, which always had horrible estimates,
> was actually able to do harmful stuff with them. Only due to a minor
> version upgrade. I think that's a bad idea to backpatch something with
> complex performance implications. Especially since they might even be
> based on potentially inaccurate data...

+1.

--
Robert Haas
EDB: http://www.enterprisedb.com



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