On 5/15/19 1:57 PM, Julie Nishimura wrote:
This puzzles me too! I found that bizarre myself. What is even more interesting, we have about 80 databases, and all of them now have default_tablespace=vol4, except only one - "control" database. The only explanation I would have that all of those databases which have tablespace vol4 as default were copied from template1 without explicitly specified tablespace name...

postgres=# select * from pg_database limit 10;
           datname           | datdba | encoding | datistemplate | datallowconn | datconnlimit | datlastsysoid | datfrozenxid | dattablespace |         datconfig         |                       datacl
-----------------------------+--------+----------+---------------+--------------+--------------+---------------+--------------+---------------+---------------------------+-----------------------------------------------------
 template0                   |     10 |        0 | t             | f          |           -1 |         11510 |          378 |          1663 |                           | {=c/postgres,postgres=CTc/postgres}  postgres                    |     10 |        0 | f             | t          |           -1 |         11510 |      7554523 |          1663 |                           |  control                     |  16389 |        6 | f             | t          |           -1 |         11510 |      7554887 |         16384 | {default_tablespace=vol1} | {=T/dba,dba=CTc/dba,oper=c/dba,nagios=c/dba}  template1                   |     10 |        0 | t             | t          |           -1 |         11510 |      7554847 |         16384 | {default_tablespace=vol4} | {=c/postgres,postgres=CTc/postgres}  conversion_alerts_fs        |  16393 |        0 | f             | t          |           -1 |         11510 |      7554847 |         16384 | {default_tablespace=vol4} | {=T/build,build=CTc/build,tableau_readonly=c/build}  conversion_feasibility_too  |  16393 |        0 | f             | t          |           -1 |         11510 |      7554847 |         16384 | {default_tablespace=vol4} |  conversion_feasibility_tool |  16393 |        0 | f             | t          |           -1 |         11510 |      7554847 |         16384 | {default_tablespace=vol4} |  custom_searches_au          |  16393 |        6 | f             | t          |           -1 |         11510 |      7554847 |         16384 | {default_tablespace=vol4} | {=T/build,build=CTc/build,tableau_readonly=c/build}

I've found that very bizarre myself, that default_tablespace would be changed for already existing databases without me altering it explicitly...
Sigh

Can we see an example of the script you used to modify the databases?

------------------------------------------------------------------------
*From:* David G. Johnston <david.g.johns...@gmail.com>
*Sent:* Wednesday, May 15, 2019 1:23 PM
*To:* Julie Nishimura
*Cc:* Adrian Klaver; pgsql-general@lists.postgresql.org
*Subject:* Re: default_tablespace in 8.3 postgresql
On Wed, May 15, 2019 at 1:01 PM Julie Nishimura <juliez...@hotmail.com <mailto:juliez...@hotmail.com>> wrote:

    However, since I have modified template1 (and most likely, those
    databases were copied from it in the past), it changed
    default_parameter for them as well.


This seems unlikely to be the case - changing template1 should not be affecting other existing databases.

David J.



--
Adrian Klaver
adrian.kla...@aklaver.com


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