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Re: how to find a tablespace for the table?

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That's right, if the tables are in default tablespace, those columns will be blank, if any of the table created under any of the 
tablespace then it will show up.

Eg:-
postgres=# show default_tablespace ;         (this would be blank becz am in pg_default/pg_global)
 default_tablespace
--------------------

(1 row)

postgres=# create table foo(id int);
CREATE TABLE
postgres=# select * from pg_tables where tablename='foo';
-[ RECORD 1 ]---------
schemaname  | public
tablename   | foo
tableowner  | postgres
tablespace  |
hasindexes  | f
hasrules    | f
hastriggers | f

Now I have the table in one of my tablespace.

postgres=#create table tab_test(id int) tablespace t1;
Expanded display is on.
postgres=# select * from pg_tables where tablename='tab_test';
-[ RECORD 1 ]---------
schemaname  | public
tablename   | tab_test
tableowner  | postgres
tablespace  | t1
hasindexes  | f
hasrules    | f
hastriggers | f


If you want to know the tablespace default information, you can try with this query.

select spcname, case spcname when 'pg_default' then (select setting from pg_settings where name = 'data_directory')||'/base' when 'pg_global' then (select setting from pg_settings where name = 'data_directory')||'/global' else spclocation end from pg_tablespace;

To get the exact table's and its tablespace's below query will work.

 select relname,reltablespace from pg_class where reltablespace in(select oid from pg_tablespace where spcname not in ('pg_default','pg_global'));

---
Best Regards,
Raghavendra
EnterpriseDB Corporation



On Mon, Jun 20, 2011 at 11:40 PM, hyelluas <helen_yelluas@xxxxxxxxxx> wrote:
thank you Greg,

here is what I get, I createed view as you suggested.
I'm not sure why tablespace column is empty

profiler1=# select * from pg_tables where schemaname ='public' limit 10;
 schemaname |        tablename        | tableowner | tablespace | hasindexes
| hasrules | hastri
ers
------------+-------------------------+------------+------------+------------+----------+-------
----
 public          | ttt                          | postgres   |
| f          | f        | f
 public          | summ_hrly_1514609   | postgres   |                 | t
| f        | f
 public          | summ_5min_1514610  | postgres   |                 | t
| f        | f
 public          | exp_cnt                   | postgres   |
| f          | f        | f
 public          | auth_type                | postgres   |                 |
t          | f        | f
 public          | druid_mapping           | postgres   |                 |
t          | f        | f
 public          | application_category  | postgres   |                 | t
| f        | f
 public          | application_risk          | postgres   |
| t          | f        | f
 public          | policy_history            | postgres   |
| t          | f        | f
 public          | datasource               | postgres   |                 |
t          | f        | f
(10 rows)


thank you.
Helen


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