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From: Alexander Korotkov <aekorotkov@gmail.com>
Date: Sat, 20 Dec 2025 12:41:39 +0200
Message-ID: 
 <CAPpHfdudzb96AOCPsyWAJnMdj-QU3xCt52PHzLbz4scbzio7sQ@mail.gmail.com>
Subject: Re: Add SPLIT PARTITION/MERGE PARTITIONS commands
To: Kirill Reshke <reshkekirill@gmail.com>
Cc: zengman <zengman@halodbtech.com>,
	pgsql-hackers <pgsql-hackers@lists.postgresql.org>
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Hi Kirill!

On Sat, Dec 20, 2025 at 10:58=E2=80=AFAM Kirill Reshke <reshkekirill@gmail.=
com> wrote:
> I have been looking though git log, noticed this commit, and did small te=
sts.
>
> This is what I found:
>
> ```
> reshke=3D# create table z(i int) partition by range(i);
> CREATE TABLE
> reshke=3D# create table z_1 partition of z for values from (0)to(1);
> CREATE TABLE
> reshke=3D# create table z_2 partition of z for values from (1)to(2);
> CREATE TABLE
> reshke=3D# alter table only z merge partitions (z_1,z_2) into z_12;
> ALTER TABLE
> reshke=3D#
>
> ```
>
> IMO "alter table only ... merge partitions" does not make perfect
> sense and should be rejected rather than executed. WDYT?

Could you, please, clarify your point? I didn't quite get it.  It
looks like pretty basic example of merging two adjacent partitions.

------
Regards,
Alexander Korotkov
Supabase