Hi,
> So I started implementing a CustomScan. It's not trivial.
>
> I've learned that the system executes ExecInitCustomScan automatically, but I
> probably need it to do most of the stuff in ExecInitIndexScan, and then
> execute the scan mostly the way it's done in IndexNext.
>
> Basically, I w
I've built a custom type of index. I implemented an index access method,
but have run into roadblocks. I need to:
1. See the other quals in the where clause.
2. Extract some things from the projection.
3. Insert some things in the projection.
4. Push some aggregations down into the index.
So I st
