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From: Yura Sokolov <[email protected]>
To: David Rowley <[email protected]>
Cc: PostgreSQL Developers <[email protected]>
Subject: Re: Fix BUG #17335: Duplicate result rows in Gather node
Date: Tue, 25 Jan 2022 12:29:07 +0300
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAApHDvqEnKn_Y4nNPqCPRLkwxZWS3tNPU6VxB9P1QtiN8y3onw@mail.gmail.com>
References: <[email protected]>
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В Вт, 25/01/2022 в 21:20 +1300, David Rowley пишет:
> On Tue, 25 Jan 2022 at 20:03, David Rowley <[email protected]> wrote:
> > On Tue, 25 Jan 2022 at 17:35, Yura Sokolov <[email protected]> wrote:
> > > And another attempt to fix tests volatility.
> > 
> > FWIW, I had not really seen the point in adding a test for this.   I
> > did however see a point in it with your original patch. It seemed
> > useful there to verify that Gather and GatherMerge did what we
> > expected with 1 worker.
> 
> I ended up pushing just the last patch I sent.
> 
> The reason I didn't think it was worth adding a new test was that no
> tests were added in the original commit.  Existing tests did cover it,

Existed tests didn't catched the issue. It is pitty fix is merged
without test case it fixes.

> but here we're just restoring the original behaviour for one simple
> case.  The test in your patch just seemed a bit more hassle than it
> was worth. I struggle to imagine how we'll break this again.

Thank you for attention and for fix.

regards,
Yura Sokolov.







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