Re: pg_dump -Are statistics saved?

On Mon, 2023-11-27 at 19:45 -0500, Tom Lane wrote:
> Murthy Nunna  writes:
> 
> 
> > If not, is it necessary to run ANALYZE after pg_restore?
> 
> That has always been necessary after a dump/restore, and still is.
> The pg_dump man page makes this clear enough, I should think:
> 
>     The dump file produced by pg_dump does not contain the statistics used
>     by the optimizer to make query planning decisions. Therefore, it is
>     wise to run ANALYZE after restoring from a dump file to ensure optimal
>     performance; see Section 25.1.3 and Section 25.1.6 for more
>     information.

If you are not pressed for time, you can wait until autovacuum gets around
to calculating the statistics automatically.

Yours,
Laurenz Albe