Re: Nested Loop "Killer" on 8.1

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"Dave North" <DNorth@xxxxxxxxxxxx> writes:
> The outstanding question here is why does the explain analyze take
> (quite a bit) longer than just executing the query?

EXPLAIN ANALYZE has nontrivial measurement overhead, especially on
platforms with slow gettimeofday().  Old/cheap PC hardware, in particular,
tends to suck in this respect.

			regards, tom lane

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