Re: Assertion failure with LEFT JOINs among >500 relations

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: Onder Kalaci <onderk(at)microsoft(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Assertion failure with LEFT JOINs among >500 relations
Date: 2020-10-18 23:10:06
Message-ID: 244844.1603062606@sss.pgh.pa.us
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David Rowley <dgrowleyml(at)gmail(dot)com> writes:
> On Sat, 17 Oct 2020 at 06:00, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> I'm good with the v2 patch.

> Thanks a lot for having a look. I'll proceed in getting the v2 which I
> sent earlier into master.

> For the backbranches, I think I go with something more minimal in the
> form of adding:

TBH, I see no need to do anything in the back branches. This is not
an issue for production usage.

regards, tom lane

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