> On 13 Jul 2020, at 14:18, Michael Paquier <michael@paquier.xyz> wrote:
> That sounds like a good idea with an extra qual in the first part of
> the inner CTE, if coupled with a check to make sure that we never
> get a NULL result. Now there is IMO an argument to not complicate
> more this query as it is not like a lot of tuples would get filtered
> out anyway because of a NULL set of values? I don't have strong
> feelings for one approach or the other, but if I were to choose, I
> would just let the code as-is, without the change in the CTE.
I don't have strong opinions either, both approaches will work, so feel free to
go ahead with the proposed change.
cheers ./daniel
