Re: behaviour change - default_tablesapce + partition table

From: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
To: Rushabh Lathia <rushabh(dot)lathia(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Subject: Re: behaviour change - default_tablesapce + partition table
Date: 2019-05-20 04:30:30
Message-ID: 170fcf53-d79b-c3a2-3d9a-46e3dfc19af2@lab.ntt.co.jp
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On 2019/05/17 12:40, Rushabh Lathia wrote:
> Hi,
>
> Consider the below test:
>
> create tablespace mytbs location '/home/rushabh/mywork/workspace/pg/';
> create table test ( a int , b int ) partition by list (a);
>
> set default_tablespace to mytbs;
> create table test_p1 partition of test for values in (1);
>
> In the above test, after the setting the default_tablespace I am creating
> a partition table and expecting that to get created under "mytbs"
> tablespace.
>
> But that is not the case:
>
> postgres(at)66247=#select relname, reltablespace from pg_class where relname =
> 'test_p1';
> relname | reltablespace
> ---------+---------------
> test_p1 | 0
> (1 row)
>
> I noticed the behaviour change for default_tablespace with partition table
> with below commit.
>
> commit 87259588d0ab0b8e742e30596afa7ae25caadb18
> Author: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
> Date: Thu Apr 25 10:20:23 2019 -0400
>
> Fix tablespace inheritance for partitioned rels
>
> Commit ca4103025dfe left a few loose ends. The most important one
> (broken pg_dump output) is already fixed by virtue of commit
> 3b23552ad8bb, but some things remained:
>
> I don't think that new behaviour is intended

Should we add this to open items?

Thanks,
Amit

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