> The nice thing about this implementation approach is that most of the
> backend need not be aware of deleted columns. There are a few places in
> the parser (probably few enough to count on one hand) that will have to
> explicitly check for and reject references to dropped columns, and
> you're done. The rewriter, planner and executor are blissfully ignorant
> of the whole deal.
If you can enumerate these places without much effort, it'd be appreciated!
I found:
expandRTE() in parser/parse_relation.c
What else?
Chris