Re: Trigger definition . . . puzzled

"Rolf A. de By" <deby@itc.nl> writes:
> Thanks for that.  There is some misunderstanding here. For this example, 
> I had taken the sting out of my trigger function and turned it into a 
> much more concise no-op, with warnings.  The actual code of my original 
> trigger function is irrelevant.  The no-op trigger function displays the 
> same strange behaviour: it works as expected for INSERTs, but not for 
> UPDATEs.  The update goes through!  And it shouldn't.

Reading between the lines, I gather you have an inheritance setup and
are expecting a trigger on the parent table to fire for events occurring
in the child tables.  Doesn't work like that; you need to put triggers
on the child tables.
        regards, tom lane