Am Dienstag, dem 10.05.2022 um 15:00 +0100 schrieb Simon Riggs:
[...]
>
> > I think REINDEX DATABASE reindexing the current database is a good
> > usability improvement in itself. But skipping the shared catalogs
> > needs an explicity syntax. Not sure how feasible it is but
> > something
> > like REINDEX DATABASE skip SHARED/SYSTEM.
>
> There are two commands:
>
> REINDEX DATABASE does every except system catalogs
> REINDEX SYSTEM does system catalogs only
>
> So taken together, the two commands seem intuitive to me.
>
> It is designed like this because it is dangerous to REINDEX the
> system
> catalogs because of potential deadlocks, so we want a way to avoid
> that problem.
>
> Perhaps I can improve the docs more, will look.
>
And we already have a situation where this already happens with REINDEX
DATABASE: if you use CONCURRENTLY, it skips system catalogs already and
prints a warning. In both cases there are good technical reasons to
skip catalog indexes and to change the workflow to use separate
commands.
Bernd