Have you considered a join? delete from t1 where pkey = t2.pkey;
Also, it appears you never ANALYZEd t2, maybe that would help? On Tue, Nov 30, 2004 at 04:55:58AM -0500, [EMAIL PROTECTED] wrote: > I have a table t1 with a primary key column pkey, and a table t2, with a > primary key column pkey. Is there a way to make the following delete use the > indexes? > > delete from t1 where pkey in (select pkey from t2); > > NOTICE: QUERY PLAN: > > Seq Scan on t1 (cost=0.00..6616238.99 rows=660239 width=6) > SubPlan > -> Seq Scan on t2 (cost=0.00..20.00 rows=1000 width=8) > > EXPLAIN > > > thanks, > Sally > > ------------------------------------------ > Sally Ruggero > Software Development > > North Electric Company, Inc. > 6131 Falls of Neuse Road, Suite 205 > Raleigh, NC 27609 > > Office: (919) 341-6009 > Fax: (919) 341-6010 > > Email: [EMAIL PROTECTED] > > > ---------------------------(end of broadcast)--------------------------- > TIP 8: explain analyze is your friend -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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