Re: Increasing select max(datecol) from bilkaib where datecol<=date'2008-11-01' and (cr='00' or db='00') speed

On Wed, Nov 12, 2008 at 07:02:10PM +0200, Andrus wrote:
> explain analyze select max(kuupaev) from bilkaib where
> kuupaev<=date'2008-11-01' and (cr='00' or db='00')

do you always have this: "(cr='00' or db='00')"? or do the values (00)
change?
if they don't change, or *most* of the queries have "(cr='00' or
db='00')", than the biggest time difference you will get after creating
this index:
create index test on bilkaib (kuupaev) where cr='00' or db='00';

depesz

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