Re: [HACKERS] Notes on testing Postgres 10b1

On 2017-06-07 14:29:04 +0900, Michael Paquier wrote:
> On Wed, Jun 7, 2017 at 2:01 PM, Josh Berkus <josh@berkus.org> wrote:
> > Q1. Why does wal_level default to "replica" and not "logical"?
> 
> The difference of WAL generated is way higher between
> archive->hot_standby than hot_standby->logical. And unlike replica,
> logical decoding is not something that is widely spread in user's
> deployments to justify changing to such a default. At least that's
> what I recall on the matter.

Right.  I think what we really want there is some form of magic
switching to logical when a slot is present.  Thats easy enough on the
master, a good bit harder when we allow decoding on standbys, which
Craig's working on.


> > Q2: I thought we were going to finally change the pg_dump default to
> > "custom" format in this release?  No?
> 
> I don't recall any discussion on this matter, but my memory may fail me.

Nothing here either.


- Andres