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Re: Explain buffers wrong counter with parallel plans - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Explain buffers wrong counter with parallel plans
Date
Msg-id CA+TgmoaPSz4OdpxP6R2vvkmT-PDT1dK3Pn=fwCaXbuLfs99U3A@mail.gmail.com
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In response to Re: Explain buffers wrong counter with parallel plans  (Adrien Nayrat <adrien.nayrat@anayrat.info>)
Responses Re: Explain buffers wrong counter with parallel plans  (Amit Kapila <amit.kapila16@gmail.com>)
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On Wed, May 2, 2018 at 11:37 AM, Adrien Nayrat
<adrien.nayrat@anayrat.info> wrote:
> In 9.6 gather node reports sum of buffers for main process + workers. In 10,
> gather node only reports buffers from the main process.

Oh, really?  Well, that sounds like a bug.  Amit seems to think it's
expected behavior, but I don't know why it should be.  The commit
message makes it sound like it's just refactoring, but in fact it
seems to have made a significant behavior change that doesn't look
very desirable.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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