Re: Release notes for February minor releases

Justin Pryzby <pryzby@telsasoft.com> writes:
> On Fri, Feb 04, 2022 at 02:58:59PM -0500, Tom Lane wrote:
>> Please send comments/corrections by Sunday.

[ assorted comments ]

Thanks for the corrections.

> +      A previous bug fix disabled building of extended statistics for
> +      old-style inheritance trees, but any existing statistics data was
> +      not removed, and that data would become more and more out-of-date
> +      over time.  Adjust the planner to ignore such data.  Extended
> +      statistics for the individual child tables are still built and used,
> +      however.

> The issue here isn't that old stats were never updated.  For inheritance, they
> *were* updated with non-inherited stats (for SELECT FROM ONLY).  But then
> "SELECT FROM tbl*" used the stats anyway...

I'm confused about this bit.  Are we still building bogus stats for
inheritance parents, or has that stopped?

            regards, tom lane