Josh Berkus <josh@agliodbs.com> writes:
> I'll give you an example why not:
> CALL some_sp ( user IS 19, session IS NULL );
> However, Tom, couldn't AS confuse the parser when used to call a named
> function in a SELECT clause?
I don't think so. We are talking about
SELECT f(42 AS a, col1 AS b) AS collabel FROM ...
Certainly there's no ambiguity to a person in this: param name AS's are
inside parens, collabel AS's are not. I believe that bison would deal
with this handily ... but I have to admit I've not actually tried to
make the grammar changes for it.
regards, tom lane