The following bug has been logged online: Bug reference: 4936 Logged by: Mathieu Dupuis Email address: mdup...@premieresloges.ca PostgreSQL version: 8.4.0 Operating system: Ubuntu Description: Bad result for SQL query Details:
I have found a probleme with a sql query that I run in one of my program. I have simplified the query as much as I can to figure out what the problem is. Have have also compere the result with the same data between postgresql 8.4 and postgresql 8.3 and the resultset is different. Here are the result of the simplest query that recreate the problem, as you can see the p.id and sod.performance_id are the same because I join on those fields but if I compare with one, I have a different result that if I compare the other. -- 1) Return 1 rows (bad) select p.performance_datetime, sod.id from saleorder_details sod, performance p, sale where p.id in (select 21030434) and p.id = sod.performance_id and sale.id = sod.sale_id; -- 2) Return many rows (good) select p.performance_datetime, sod.id from saleorder_details sod, performance p, sale where p.id in (21030434) and p.id = sod.performance_id and sale.id = sod.sale_id; -- 3) Return many rows (good) select p.performance_datetime, sod.id from saleorder_details sod, performance p, sale where sod.performance_id in (select 21030434) and p.id = sod.performance_id and sale.id = sod.sale_id; -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs