Hi > SQL Server 2008 R2 Query > select t1.id from table1 t1 inner join table2 t2 on t1.id = t2.id > and t1.question = t2.question and isnull(t1.response,'ISNULL') <> > isnull(t2.response,'ISNULL') > > Postgres 9.1 Query > select t1.id from table1 t1 inner join table2 t2 on t1.id = t2.id > and t1.question = t2.question and coalesce(t1.response,'ISNULL') <> > coalesce(t2.response,'ISNULL') > > What gives? They have same indexes/PK etc? Regards, Jayadevan DISCLAIMER: "The information in this e-mail and any attachment is intended only for the person to whom it is addressed and may contain confidential and/or privileged material. If you have received this e-mail in error, kindly contact the sender and destroy all copies of the original communication. IBS makes no warranty, express or implied, nor guarantees the accuracy, adequacy or completeness of the information contained in this email or any attachment and is not liable for any errors, defects, omissions, viruses or for resultant loss or damage, if any, direct or indirect." -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
