On Fri, 2025-06-20 at 11:14 -0700, David G. Johnston wrote:
> > In the circumstance where a function evaluation is performed within
> > Boolean
> > expression, the evaluation seems to continue past a function
> > returning a
> > TRUE value.
> >
>
> Where did we claim we perform short-circuiting?
Even if you force the execution-time evaluation order with CASE, you
can still get an error:
EXPLAIN SELECT CASE WHEN random() < 2 THEN TRUE ELSE (1/0 = 0) END;
ERROR: division by zero
The expression "random() < 2" is always true, so at execution time the
second branch will never be reached. But it is reached at planning
time.
Regards,
Jeff Davis
