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From: Kashif Zeeshan <[email protected]>
To: Ron Johnson <[email protected]>
Cc: pgsql-general <[email protected]>
Subject: Re: PG 14 pg_basebackup accepts --compress=server-zst option
Date: Fri, 7 Jun 2024 09:27:07 +0500
Message-ID: <CAAPsdhfQ0GvDuNeMZpe_sccHcM=7dHZq=C6wXbM8zFr_X2FD3g@mail.gmail.com> (raw)
In-Reply-To: <CANzqJaB=-AUnoXh+V6ayLPbRut7yNt7utL-=0+OK4hdh35-cTQ@mail.gmail.com>
References: <CANzqJaB=-AUnoXh+V6ayLPbRut7yNt7utL-=0+OK4hdh35-cTQ@mail.gmail.com>

Hi

On Fri, Jun 7, 2024 at 6:54 AM Ron Johnson <[email protected]> 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
>
>

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