Teodor Sigaev <teodor@sigaev.ru> writes:
> Do you think we need to add new pg_am boolean option? Like pg_am.amcangettuple
> or pg_am.amcanpertuplescan
I think it's sufficient to mark this by setting amgettuple to zero.
We might as well allow amgetbitmap to be zero, too, to mark the case
where the AM doesn't want to support bitmap scans.
regards, tom lane