Re: [PATCH] Document wal_compression=on

Re: John Naylor
> + The value <literal>on</literal> is a deprecated alias for
> <literal>pglz</literal>.
>
> "deprecated" implies we may remove it someday. I don't think we'd gain
> from doing that, but we could instead call 'on' a "historical
> spelling" of 'pglz'.

Or perhaps leave the door open for picking a better default in the future?

The value <literal>on</literal> is currently an alias for <literal>pglz</literal>.

(I would be fine with either of the 3 variants.)

Maybe we should also update the postgresql.conf.sample:

#wal_compression = off # enables compression of full-page writes;
- # off, pglz, lz4, zstd, or on
+ # off, pglz (or on), lz4, or zstd

(Or just delete it there.)

Christoph