Re: Add starelid, attnum to pg_stats and leverage this in pg_dump

>> nathan
>
>
> You're both right. Currently, we fetch extended stats one at a time, thus there's no _immediate_ need to do so.
>
> But "why wait until there is a crisis" is solid reasoning and for that I had already coded up the change.
>I did have one small problem in that Michael Paquier had hoped that we could get the expr index (-1, -2, etc) on the expressions
> as that was something that we at least briefly thought we'd need for importing expression statistics. However the existing query
> uses a SELECT unnest(a), unnest(b) pattern in it, and WITH ORDINALITY is not allowed, and the workarounds I found seemed a
> bit tortured. Hence, I decided to leave that out so as not to distract from the now accepted patch, and with that out of the way
> I'll happily inflict that tortured SQL on y'all.

Can we add the tableid for now (see 0003) and follow-up with another
thread with the sql changes to pg_dump?

I also corrected v2-0001. The docs were still referencing "starlid"
instead of "tableid"

--
Sami Imseih
Amazon Web Services (AWS)