select count(1) from snapshotlist where id not in (select id from q);
count
-------
0
(1 row)
Doesn't this usually happen if q.id contains NULL. That is as per ANSI standard.
select count(1) from snapshotlist where id not in (select id from q);
count
-------
0
(1 row)
Doesn't this usually happen if q.id contains NULL. That is as per ANSI standard.