Re: BUG #1620: triggers breaks with alter table (at least with plpythonu)

"Nahuel Greco" <ngreco@gmail.com> writes:
> If I create a trigger for a table, the trigger works
> ok, but if I add a new column to the table, then
> the trigger receives a NEW record with the old
> structure! I can fix that only if I remove the trigger
> from the table _and_ the trigger function.

Starting a fresh backend session would be sufficient.  I believe the
issue is that plpython is caching tuple structure information.

            regards, tom lane