Hi Guys, I hope I'm in the right place to throw this. I just want to ask the reason behind this weird scenario. All records were deleted in a table even if the subquery in the where clause has a missing a column. --from a certain script where table_id is not yet existing on table_sample delete from main_table_sample where table_id in (select table_id from table_sample); Im expecting that postgres will return an ERROR message like 'column "table_id" does not exist on table table_sample' But it did not returned any error and deleted all the records instead. Version: psql (8.4.9, server 9.2.5) Thanks and Regards, ______________________ Oliver G. Dizon Z Getcare Systems Team RTZ Associates, Inc. johnoliver@xxxxxxxxxxxxxxxxx -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general