Re: asynchronous execution

From: Corey Huinker <corey(dot)huinker(at)gmail(dot)com>
To: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
Cc: Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, robertmhaas(at)gmail(dot)com, amitdkhan(dot)pg(at)gmail(dot)com, pgsql-hackers(at)postgresql(dot)org
Subject: Re: asynchronous execution
Date: 2017-03-14 01:08:03
Message-ID: CADkLM=fDOTnmJO4YQhvqMGoRGVzkCzZ0r0r4SUzM6aJn=d7x_g@mail.gmail.com
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>
> I don't think the plan itself will change as a result of applying this
> patch. You might however be able to observe some performance improvement.
>
> Thanks,
> Amit
>

I could see no performance improvement, even with 16 separate queries
combined with UNION ALL. Query performance was always with +/- 10% of a 9.6
instance given the same script. I must be missing something.

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