Re: Removing unneeded self joins

From: David Steele <david(at)pgmasters(dot)net>
To: Andrey Lepikhov <a(dot)lepikhov(at)postgrespro(dot)ru>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Removing unneeded self joins
Date: 2020-04-01 15:34:54
Message-ID: 031ab7da-c943-cd65-590e-671add024e3f@pgmasters.net
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On 1/27/20 11:10 PM, Andrey Lepikhov wrote:
> Rebased version v.22.
> - Added enable_self_join_removal GUC (true is default)
> - The joinquals of the relation that is being removed, redistributed in
> accordance with the remove_rel_from_query () machinery.

This patch no longer applies cleanly on
src/test/regress/sql/equivclass.sql:
http://cfbot.cputube.org/patch_27_1712.log

The CF entry has been updated to Waiting on Author.

Regards,
--
-David
david(at)pgmasters(dot)net

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