Ah, okay - my reasoning was there's a big fancy-pants raid array behind it
that makes disk operations faster relative to CPU ones.

I'll test it and see if it actually makes any difference.

-----Original Message-----
From: Claudio Freire [mailto:klaussfre...@gmail.com] 
Sent: 04 December 2012 18:33
To: Philip Scott
Cc: postgre...@foo.me.uk; postgres performance list
Subject: Re: [PERFORM] Slow query: bitmap scan troubles

On Tue, Dec 4, 2012 at 3:31 PM, Philip Scott <psc...@foo.me.uk> wrote:
> r_p_c 2-> 1 (s_p_c 1->0.5):

Is this really necessary?

(looks like a no-op, unless your CPU is slow)




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