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From: Tom Lane on 11 Nov 2009 09:47
Jaime Casanova <jcasanov(a)systemguards.com.ec> writes:
> I was using auto_explain to log plans (with analyze option on) from
> queries that take more than 500ms, something i found i little odd is
> that the duration says 779ms but actual time says 269ms (almost 3
> times lower), maybe some kind of instrumentation cleanup can explain
> this?

Client slow about absorbing the rows, perhaps? The actual data output
process isn't counted as part of the plan tree's runtime ... but it
would be included in the total elapsed time.

regards, tom lane

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