Oliver Dizon <johnoliver@xxxxxxxxxxxxxxxxx> writes: > 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' Read up on "outer references" in SQL sub-selects. This query is entirely legal, although it doesn't do what you want. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
