Klint Gore <kg@kgb.une.edu.au> writes: > There are 55k rows in t1 (103 fields) and 10k in t2 (4 fields, 4 is text). > before vacuum analyze the query gave 10k rows like it was doing an inner > join. after vacuum analyze gave the full 55k. Sounds like a bug ... > 7.4.0, rh linux 7.2, p4 (non ht) cpu. You are of course aware that there are a lot of known bugs in 7.4.0? Please try it on 7.4.2. If you can still make it happen on 7.4.2 then I'd be interested in a test case... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html