Just spent an hour getting nowhere, til I discovered this (description is a
varchar field):
select description from address union select 'other';
fine but...
select 'other' union select description from address;
ERROR: Unable to transform varchar to unknown
Each UNION | EXCEPT | INTERSECT clause must have compatible target
types
Its not a problem, as I now I've worked it out I can do what I wanted (a
long nasty union to get around some outer join issues), but I just wondered
if the order of the selects in a union should matter?
tamsin
