> > tgl=> select * from pg_shadow
> > tgl-> where not (usesysid is null and oid is null);
> > pqReadData() -- backend closed the channel unexpectedly.
btw, you may already have noticed that this doesn't crash if the same
clause is changed to be a target:
tgl=> select not (usesysid is null and oid is null) from pg_shadow;
?column?
--------
t
t
(2 rows)
- Thomas