alvherre(at)postgresql(dot)org (Alvaro Herrera) writes:
> We no longer need to palloc the VacuumStmt node; keeping it on the stack is
> simpler.
If you're going to do that, you should at least set the nodeTag so that
the struct appears valid to onlookers. A memset wouldn't be out of
place either to make sure that any uninitialized fields behave sanely.
regards, tom lane