Karl Wright wrote: > I did an ANALYZE on that table and repeated the explain, and got this: > > >>>>>> > metacarta=> analyze intrinsiclink; > ANALYZE > metacarta=> explain select count(*) from intrinsiclink where > jobid=1181766706097 and > childidhash='7E130F3B688687757187F1638D8776ECEF3009E0'; > QUERY PLAN > > ------------------------------------------------------------------------------------------------------------------------------------ > Aggregate (cost=15276.36..15276.37 rows=1 width=0) > -> Index Scan using i1181764142395 on intrinsiclink > (cost=0.00..15255.53 rows=8333 width=0) > Index Cond: ((jobid = 1181766706097::bigint) AND > ((childidhash)::text = '7E130F3B688687757187F1638D8776ECEF3009E0'::text)) > (3 rows) > <<<<<< > > ... even more wildly wrong.
Interesting. What is the statistics target for this table? Try increasing it, with ALTER TABLE ... SET STATISTICS, rerun analyze, and try again. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc. ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate
