Re: On-demand running query plans using auto_explain and signals

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От Robert Haas
Тема Re: On-demand running query plans using auto_explain and signals
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Msg-id CA+Tgmobu1DvQzahsSX=u9Ti=g4zJmxNmaNHC2-ru8sGBxmtvbw@mail.gmail.com
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Ответ на Re: On-demand running query plans using auto_explain and signals  ("Shulgin, Oleksandr" <oleksandr.shulgin@zalando.de>)
Ответы Re: On-demand running query plans using auto_explain and signals  (Pavel Stehule <pavel.stehule@gmail.com>)
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On Tue, Sep 15, 2015 at 5:00 AM, Shulgin, Oleksandr
<oleksandr.shulgin@zalando.de> wrote:
> Please see attached for implementation of this approach.  The most
> surprising thing is that it actually works :)

It's cool to see these interesting ideas for using some of the code
I've been working on for the last couple of years.  However, it seems
to me that a better design would avoid the use of shm_mq.  Instead of
having the guy who asks the question create a DSM, have the guy who
sends back the answer create it.  Then, he can just make the DSM big
enough to store the entire string.  I think that's going to be a lot
more robust than what you have here.

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



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