Humm... Reading this way... It sounds like I could write something like this:
SELECT city, (temp_hi+temp_lo)/2 temp_avg, date FROM weather; Like it work with tables... 2008/3/14, Tom Lane <[EMAIL PROTECTED]>: > > "Daniel Cristian Cruz" <[EMAIL PROTECTED]> writes: > > Where it says: > > > "Notice how the AS clause is used to relabel the output column. (The AS > > clause is optional.)" > > > It's wrong, because it causes an error if executed without it. > > Hmm? You can leave off the AS clause if you want: > > SELECT city, (temp_hi+temp_lo)/2 AS temp_avg, date FROM weather; > SELECT city, (temp_hi+temp_lo)/2, date FROM weather; > > regards, tom lane > -- Daniel Cristian Cruz クルズ クリスチアン ダニエル
