What's going on here:

usa=> select user_id from users_users where joindate >= '2004-03-09';
ERROR:  column "user_id" does not exist

usa=> select * from shop_orders where user_id in (select user_id from users_users where joindate >= '2004-03-09');
[waits and waits and waits...have to cancel]
^CCancel request sent
ERROR: canceling query due to user request


How come using a field that doesn't exist in the subquery actually works and doesn't cause a syntax error?

Chris


---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match

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