Aleksander Alekseev <aleksan...@timescale.com> writes:
> If I'm right about the limitations of aggregate functions and SRFs
> this leaves us the following options:
> 1. Changing the constraints of aggregate functions or SRFs. However I
> don't think we want to do it for such a single niche scenario.
> 2. Custom syntax and a custom node.
> 3. To give up
Seems to me the obvious answer is to extend TABLESAMPLE (or at least, some
of the tablesample methods) to allow it to work on a subquery.
regards, tom lane
