postgres question: Views with duplicate field names
Hello, I have a question about views in Postgres.
Given a table like so:
create table todo (
id serial,
task text,
done_time timestamp default null
);
id serial,
task text,
done_time timestamp default null
);
it is legal (though perhaps not advised, by some) to query it like so:
select task, * from todo;
This gives a result with 2 redundant "task" fields (with duplicate names):
task | id | task | done_time
--------------+----+----------
wash the dog | 1 | wash the dog |
--------------+----+----------
wash the dog | 1 | wash the dog |
However, if I try to make a view of this I hit a problem: views can't have duplicate field names:
create view task2 as select task, * from todo;
ERROR: column "task" specified more than once
I understand this may seem like a silly thing to want to do, but my question is if there is an easy way to automatically de-dup the columns of the query so I can create a view from it. Or is there any fundamental reason why views can't be allowed to have duplicate columns, just like the result set above?
Thanks!
Ryan
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