Re: Add a GUC check hook to ensure summarize_wal cannot be enabled when wal_level is minimal

On Wed, Jul 10, 2024 at 10:10 AM Robert Haas <robertmhaas@gmail.com> wrote:
> On Wed, Jul 10, 2024 at 1:56 AM Fujii Masao <masao.fujii@oss.nttdata.com> wrote:
> > I believe this issue occurs when the server is shut down cleanly.
> > The shutdown-checkpoint record retains the wal_level value used
> > before the shutdown. If wal_level is changed after this,
> > the wal_level that indicated by the shutdown-checkpoint record
> > and that the WAL data generated afterwards depends on may not match.
>
> Oh, that's a problem. I'll have to think about that.

Here is an attempt at fixing this problem.

--
Robert Haas
EDB: http://www.enterprisedb.com