Bertrand Petit <[EMAIL PROTECTED]> writes:
> That query can't be planed because of the following error: "Unable to
> identify an ordering operator '<' for type 'character varying[]'".
This shortcoming is (at long last) repaired for 7.4. There is no simple
solution in earlier releases, I fear.
> I'm signaled that the array_out procedure is not defined: "ERROR:
> TypeCreate: function array_out(attributes) does not exist". That error
> sounds strange as the CREATE TYPE manual describes uniform array type
> creation as illustrated above and that array_out() seems to exist as
> shown bellow.
CREATE TYPE wants an *exact* match of the argument/result datatypes.
You could fake it out by creating another pg_proc row pointing at the
same internal procedure. However, I think creating a private datatype
is the hard way to go about this. A better short-run solution is just
to create = and < operators for varchar[].
regards, tom lane
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