Re: pg_basebackup's --gzip switch misbehaves

On Wed, Sep 21, 2022 at 11:43:56PM -0400, Tom Lane wrote:
> I don't have any opinion on the concrete merits of this change,
> but I want to note that 15rc1 wraps on Monday, and we don't like
> people pushing noncritical changes shortly before a wrap. There
> is not a lot of time for fooling around here.

If I were to do it in the next couple of hours, we'd still have quite
a couple of days of coverage, which is plenty as far as I understand?

Saying that, it is not a critical change. Just to give some numbers,
for a fresh initdb's instance base.tar.zst is at:
- 3.6MB at level 0.
- 3.8MB at level 1.
- 3.6MB at level 2.
- 4.3MB at level -1.
- 4.6MB at level -2.
- 6.1MB at level -7.

I am not sure if there would be a huge demand for this much control
over the current [1,22], but the library wants to control dynamically
the bounds and has the APIs to allow that.
--
Michael