Hello. > Sorry, seems like I've incorrectly expressed what I wanted to say. > I mean this Assert() can be checked before loop, not on every loop cycle.
Yes, I understood it. Condition should be checked every cycle - at least it is done this way for index only scan: https://github.com/postgres/postgres/blob/master/src/backend/executor/nodeIndexonlyscan.c#L234 But since original index scan do not contains such check (probably due ot https://github.com/postgres/postgres/blob/master/src/backend/executor/nodeIndexscan.c#L552) - I think it could be removed. Michail.
