Re: PG 14 pg_basebackup accepts --compress=server-zst option

Hi

On Fri, Jun 7, 2024 at 6:54 AM Ron Johnson <ronljohnsonjr(at)gmail(dot)com> wrote:

>
> https://www.postgresql.org/docs/14/app-pgbasebackup.html doesn't mention
> "--compress=[{client|server}-]method". That first appears in the v15 docs.
>
> And yet pg_basebackup doesn't complain about an invalid option.
> (Technically, this is a bug; I first noticed it a week after copying a
> script from a PG 15 server to five PG 14 servers, and running it quite a
> few times without fail.)
>
If the support is removed then it should be mentioned in the official
documentation.

Regards
Kashif Zeeshan
Bitnine Global

>
> $ pg_basebackup \
> > --pgdata=$PGDATA \
> > --dbname=service=basebackup \
> > --verbose --progress \
> > --checkpoint=fast \
> > --write-recovery-conf \
> > --wal-method=stream \
> > --create-slot --slot=pgstandby1 \
> > --compress=server-zst ; echo $?
> pg_basebackup: initiating base backup, waiting for checkpoint to complete
> pg_basebackup: checkpoint completed
> pg_basebackup: write-ahead log start point: 256/BC000028 on timeline 1
> pg_basebackup: starting background WAL receiver
> pg_basebackup: created replication slot "pgstandby1"
> 42567083/42567083 kB (100%), 1/1 tablespace
> pg_basebackup: write-ahead log end point: 256/BC000138
> pg_basebackup: waiting for background process to finish streaming ...
> pg_basebackup: syncing data to disk ...
> pg_basebackup: renaming backup_manifest.tmp to backup_manifest
> pg_basebackup: base backup completed
> 0
>
>