"J.Fernando Moyano" <txinete@wanadoo.es> writes:
> The execution time of certain queries is 20 or 30 times longer in 7.0.2 that
> 6.5. (20 or 30 seconds where before it was 1 or 2 seconds !!!)
Have you done a VACUUM ANALYZE?
Other than that, there's no generic advice. You'll need to provide some
details about the problem queries and the plans you get for them in 6.5
and 7.0.
regards, tom lane