On 10/27/2011 02:13 PM, Robert Haas wrote:
> If I had to guess, I'd bet that the second one is trying to spool the
> resultset in memory someplace and that's driving the machine into
> swap.
That would be my guess too. SELECT * on a 40-million row table is a
*lot* different than getting the count, which throws away the rows once
it verifies they're valid.
--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 800 | Chicago IL, 60604
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sthomas@peak6.com
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