Re: min_safe_lsn column in pg_replication_slots view

At Fri, 19 Jun 2020 16:36:09 +0900, Michael Paquier <michael@paquier.xyz> wrote in 
> On Fri, Jun 19, 2020 at 04:13:27PM +0900, Fujii Masao wrote:
> > Agreed. But isn't it too late to remove the columns (i.e., change
> > the catalog) for v13? Because v13 beta1 was already released.
> > IIUC the catalog should not be changed since beta1 release so that
> > users can upgrade PostgreSQL without initdb.
> 
> Catalog bumps have happened in the past between beta versions:
> git log -p REL_12_BETA1..REL_12_BETA2 src/include/catalog/catversion.h
> git log -p REL_11_BETA1..REL_11_BETA2 src/include/catalog/catversion.h
> git log -p REL_10_BETA1..REL_10_BETA2 src/include/catalog/catversion.h
> 
> So we usually avoid to do that between betas, but my take here is that
> a catalog bump is better than regretting a change we may have to live
> with after the release is sealed.

FWIW if we decide that it is really useless, I agree to remove it now.

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center