Dmitry Tkach <dmitry@openratings.com> writes:
> I know... That was a typo in my sql :-)
> But for this example it doesn't matter - that view/table is only needed
> to illustrate the rules behaviour on insert.
Oh, I see what you're on about. Sorry, a "DO INSTEAD NOTHING" only
suppresses the original command, it does not suppress other rules.
I think what you want is to make the insert_test rule conditional
on x being not null.
regards, tom lane