"Dan Wilson" <phpPgAdmin@acucore.com> writes:
> : Possibly some future release will actually do the right thing with ORDER
> : BY of an expression on the output columns, but right now it has to be an
> : output column, period.
> OK... I tried adding UPPER(last_name) to the result column lists of both
> sides of the union and it still gives me the same error.
You have to use the SQL-standard syntax for ORDER BY, ie column name or
number, no shortcuts:
SELECT ..., UPPER(last_name) AS upper_last_name
UNION
SELECT ..., UPPER(last_name) AS upper_last_name
ORDER BY upper_last_name;
or if you prefer, ORDER BY n where n is the ordinal number of the
column.
regards, tom lane
