Re: [PERFORM] Explain Analyze - actual time in loops - Mailing list pgsql-performance

From Tom Lane
Subject Re: [PERFORM] Explain Analyze - actual time in loops
Date
Msg-id 15789.1504878289@sss.pgh.pa.us
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In response to Re: [PERFORM] Explain Analyze - actual time in loops  (Neto pr <netopr9@gmail.com>)
Responses Re: [PERFORM] Explain Analyze - actual time in loops  (Neto pr <netopr9@gmail.com>)
List pgsql-performance
Neto pr <netopr9@gmail.com> writes:
> After analyzing, I saw that in some places of the plan, it is being used
> Parallelism. Does this explain why the final value spent (in minutes) to go
> through the index (184 minutes) is greater than the total query time (66
> minutes)?

I was just about to ask you about that.  If this is under a Gather node,
I believe that the numbers include time expended in all processes.
So if you had three or more workers these results would make sense.
        regards, tom lane


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