=?ISO-8859-1?Q?Sebastian_B=F6ck?= <sebastianboeck@freenet.de> writes:
> why is the last definition of a view not working, although the
> documentation says all three are equal?
The documentation says no such thing...
> CREATE OR REPLACE VIEW not_working AS
> SELECT one.*
> FROM one.one, two.two
> JOIN join1 ON join1.id = one.id;
JOIN binds tighter than comma in FROM-lists, so that means
FROM one.one CROSS JOIN (two.two JOIN join1 ON join1.id = one.id);
which of course is illegal because the JOIN/ON condition refers to
something that's not within the current JOIN. Your preceding example
parenthesizes as
FROM (one.one CROSS JOIN two.two) JOIN join1 ON join1.id = one.id;
which is OK.
regards, tom lane