Re: A thought on Index Organized Tables

It might be slightly easier given the assumption that you only want to
scan leaf tuples.

But there's an additional problem I didn't think of before. Currently
we optimize index scans by copying all relevant tuples to local memory
so we don't need to hold an index lock for an extended time or spend a
lot of time relocking and rechecking the index for changes. That
wouldn't be possible if we needed to get visibility info from the page
since we would need up-to-date information.