COPY and views

Is there a reason for the following behavior?

nconway=# create table a (col1 int);
CREATE TABLE
nconway=# insert into a default values;
INSERT 1883513 1
nconway=# copy a to '/tmp/output';
COPY
nconway=# create view myview as select * from a;
CREATE VIEW
nconway=# copy myview to '/tmp/output';
ERROR: You cannot copy view myview

I can understand not allowing COPY FROM to target a view
(or at least, a view without an insertion rule defined) --
but is there a similar reason for disallowing copying data
out of a view?

Cheers,

Neil

--
Neil Conway <neilconway(at)rogers(dot)com>
PGP Key ID: DB3C29FC