Given something like:
create table foo (id int primary key not null);create table bar (id int primary key not null, a_id int references
foo(id));select a.id, b.id from foo a left outer join bar b on (b.a_id =
a.id) for update;
PG 8.1.4 balks, saying:
SELECT FOR UPDATE/SHARE cannot be applied to the nullable side of an
outer join
Is this behavior spec-mandated, or could only the rows in B which are
not-null be locked?
----
James Robinson
Socialserve.com