On Wed, 7 Jul 2010, JOUANIN Nicolas (44) wrote:
It seems to work fine (same execution plan and less duration) after :
 - setting default_statistics_target to 100
 - full vacuum with analyze

Don't do VACUUM FULL.

Matthew

--
I suppose some of you have done a Continuous Maths course. Yes? Continuous
Maths? <menacing stares from audience> Whoah, it was like that, was it!
                                       -- Computer Science Lecturer
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