Re: joining two tables slow due to sequential scan

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On Fri, 2006-02-10 at 16:35, Tim Jones wrote:
> OK.  I'm gonna make a couple of guesses here:
> 
> 1:  clinicaldocuments.patientidentifier is an int8 and you're running
> 7.4 or before.
> 
> -- nope int4  and 8.1
> 
> 2: There are more rows with clinicaldocuments.patientidentifier= 123
> than with documentversions.documentstatus = 'AC'.
> 
> -- nope generally speaking all statuses are 'AC'
> 
> 3: documentversions.documentidentifier and
> clinicaldocuments.dssdocumentidentifier are not the same type.
> 
> -- nope both int4

OK then, I guess we'll need to see the explain analyze output of both of
those queries.


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