Re: select_parallel test failure: gather sometimes losing tuples (maybe during rescans)?

From: Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: select_parallel test failure: gather sometimes losing tuples (maybe during rescans)?
Date: 2018-03-04 10:03:49
Message-ID: CAEepm=2ZMpOuSYKbFkUdkuaHraupUEoTL=nvuMp=EzXK3uQUSg@mail.gmail.com
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On Sun, Mar 4, 2018 at 10:46 PM, Magnus Hagander <magnus(at)hagander(dot)net> wrote:
> Um. Have you actually seen the "mail archive app" cut long threads off in
> other cases? Because it's certainly not supposed to do that...

Hi Magnus,

I mean the "flat" thread view:

https://www.postgresql.org/message-id/flat/CAFjFpRfQ8GrQvzp3jA2wnLqrHmaXna-urjm_UY9BqXj=EaDTSA(at)mail(dot)gmail(dot)com

The final message on that page is not the final message that appears
in my mail client for the thread. I guessed that might have been cut
off due to some hard-coded limit, but perhaps there is some other
reason (different heuristics for thread following?)

--
Thomas Munro
http://www.enterprisedb.com

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