Re: Query tuning - Mailing list pgsql-sql

From Scott Marlowe
Subject Re: Query tuning
Date
Msg-id dcc563d10805160821p22e01297ia85bf6317c4a6c2b@mail.gmail.com
Whole thread Raw
In response to Query tuning  (<kapil.munish@wipro.com>)
Responses Re: Query tuning
List pgsql-sql
On Thu, May 15, 2008 at 12:00 AM,  <kapil.munish@wipro.com> wrote:
> Hi,
>
> select count(distinct(j.JOBID)) as jobCount
> from  JOB_TYPE_FIRST a, JOB_TYPE_SECOND b, JOB_ALLOCATION_WORKLIST j
> where (( a.JOBID = j.JOBID)
> and (a.BOOK_ID = :bookId))
> or ((b.JOBID = j.JOBID)
> and (b.BOOK_ID = :bookId));

Have you tried joining a with j and b with j separately, and then
doing a union on those two sets?


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