Wayne Conrad <wayne@xxxxxxxxxxxx> wrote: > select page_number, ps_id, ps_page_id from ps_page where > ps_page_id in (select ps_page_id from documents_ps_page where > document_id in (select document_id from temp_doc_ids)) order by > ps_page_id; > [estimated rows=34398932; actual rows=5] > We tried increasing (from 100 to 1,000 and 10,000) the statistics > targets for each of the indexed columns, one at a time, and > analyzing the table/column with each change. This had no effect Ouch. Out of curiosity, what do you get with?: explain analyze select page_number, ps_id, ps_page_id from ps_page p where exists ( select * from documents_ps_page d where d.ps_page_id = p.ps_page_id and exists (select * from temp_document_ids t where t.document_id = d.document_id) ) order by ps_page_id ; -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance