Re: Damage control for planner's get_actual_variable_endpoint() runaway

Andres Freund <andres@anarazel.de> writes:
> This can't quite be right - isn't this only applying the limit if we found a
> visible tuple?

What it's restricting is the number of heap page fetches, which
might be good enough.  We don't have a lot of visibility here
into how many index pages were scanned before returning the next
not-dead index entry, so I'm not sure how hard it'd be to do better.

            regards, tom lane