Excerpts from Jann Röder's message of lun ago 23 00:23:38 -0400 2010: > "Hash Join (cost=516.66..17710110.47 rows=8358225 width=16)" > " Hash Cond: ((b.itemid)::bpchar = a.itemid)" > " -> Seq Scan on b (cost=0.00..15110856.68 rows=670707968 width=16)" > " -> Hash (cost=504.12..504.12 rows=1003 width=16)" > " -> Index Scan using idx_issueid on a (cost=0.00..504.12 > rows=1003 width=16)" > " Index Cond: (issueid = 'A1983PW823'::bpchar)" Hmm, I'm placing bets on the bpchar weirdness. I'd try getting rid of that and using plain varchar for all the columns. -- Álvaro Herrera <alvherre@xxxxxxxxxxxxxxxxx> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance