Re: PATCH: add support for IN and @> in functional-dependency statistics use

On Tue, 17 Mar 2020 at 15:37, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
>
> On Tue, Mar 17, 2020 at 12:42:52PM +0000, Dean Rasheed wrote:
>
> >The other thing that I'm still concerned about is the possibility of
> >returning estimates with P(a,b) > P(a) or P(b). I think that such a
> >thing becomes much more likely with the new types of clause supported
> >here, because they now allow multiple values from each column, where
> >before we only allowed one. I took another look at the patch I posted
> >on the other thread, and I've convinced myself that it's correct.
> >Attached is an updated version, with some cosmetic tidying up and now
> >with some additional regression tests.
>
> Yeah, I agree that's something we need to fix. Do you plan to push the
> fix, or do you want me to do it?
>

I can push it. Have you had a chance to review it?

Regards,
Dean