Re: Sequences not moved to new tablespace
| От | Guillaume Drolet |
|---|---|
| Тема | Re: Sequences not moved to new tablespace |
| Дата | |
| Msg-id | CAOkiyv4MKhGpZBT+K5O0eYW4JPhbctueEE46_M=6XgLRjF3NNg@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Sequences not moved to new tablespace (Albe Laurenz <laurenz.albe@wien.gv.at>) |
| Ответы |
Re: Sequences not moved to new tablespace
(Albe Laurenz <laurenz.albe@wien.gv.at>)
|
| Список | pgsql-general |
2015-02-24 10:39 GMT-05:00 Albe Laurenz <laurenz.albe@wien.gv.at>:
datname | oid | spcname | oid
-----------+--------+----------+--------
mydb| 942258 | diamonds | 940585
(1 row)
Guillaume Drolet wrote:
>> If you want to move a whole database to a different tablespace (the only reason
>> I can think of for doing what you are trying to so), use the command
>> ALTER DATABASE ... SET TABLESPACE ...
> Thanks Laurenz. I tried your suggestion:
>
> psql -U postgres -c "ALTER DATABASE mydb SET TABLESPACE pg_default;"
>
> I get this message:
> ERROR: some relations of database "mortalite" are already in tablespace "pg_default"
> HINT : You must move them back to the database's default tablespace before using this command.
>
> But if I do "SHOW default_tablespace;" in mydb, it showed "pg_default" as the default tablespace.
>
> So I tried changing it back to the tablespace I want to get rid of to subsequently moved everything
> back there so that ultimately, it lets me move everything to pg_default:
> ALTER DATABASE mydb SET default_tablespace = diamonds;
>
> And then:
> psql -U postgres -c "ALTER DATABASE mydb SET TABLESPACE diamonds;"
>
> ALTER DATABASE is issued but nothing gets physically moved to diamonds. Why?
I guess the problem is that you already moved a lot of tables around.
Could you connect to the database and try the following:
SELECT d.datname, d.oid, sp.spcname, sp.oid
FROM pg_tablespace sp JOIN
pg_database d ON sp.oid = d.dattablespace
WHERE datname = current_database();
datname | oid | spcname | oid
-----------+--------+----------+--------
mydb| 942258 | diamonds | 940585
(1 row)
and
SELECT t.relname, t.reltablespace, sp.spcname
FROM pg_class t LEFT JOIN
pg_tablespace sp ON sp.oid = t.reltablespace;
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----------------------------------------------------------+---------------+------------
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...
...
----------------------------------------------------------+---------------+------------
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...
...
(1613 rows)
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