Albe Laurenz wrote:
Cyril SCETBON wrote:
I get the following error :
postgres=# DROP TABLESPACE IF EXISTS my_tbs;
ERROR: tablespace "my_tbs" is not empty
I've searched in pg_class and I'm not able to find a relation which
refers to my_tbs with :
You can find the dependent objects with:
SELECT t.relname AS catalog, d.objid AS oid_dependent
FROM pg_catalog.pg_class t JOIN
pg_catalog.pg_depend d ON (t.oid = d.classid)
WHERE refobjid = 100456;
postgres=# SELECT t.relname AS catalog, d.objid AS oid_dependent
postgres-# FROM pg_catalog.pg_class t JOIN
postgres-# pg_catalog.pg_depend d ON (t.oid = d.classid)
postgres-# WHERE refobjid = 100456;
catalog | oid_dependent
---------+---------------
(0 rows)
nothing...
Find out the directory:
SELECT oid, spclocation FROM pg_catalog.pg_tablespace WHERE spcname = 'my_tbs';
is there anything in this directory?
cd spclocation
find .
.
./100456
./100456/100738
./100456/102333
./100456/103442
[...]
Good! that's a starting point!
A tablespace does not belong to a specific database, so it could be that
these objects belong to another database that also uses this tablespace.
Try to look for objects that depend on the tablespace in other databases.
I also forgot pg_shdepend which contains relationships to shared objects
such as roles - look there too.
Can you find tables or other objects with OID 100738, 102333 etc. in this
or other databases?
VALUES=`find /path/100456/ -type f -exec basename {} \;|xargs|sed -e 's/
/,/g'`
for db in `/usr/lib/postgresql/8.2/bin/oid2name|grep -v template|tail -n
+4|awk '{print $2}'`; do psql $db -c "select count(*) from pg_shdepend
where objid in ($VALUES) or refobjid in ($VALUES)"; done
count
-------
0
(1 row)
count
-------
0
(1 row)
count
-------
0
(1 row)
nothing :-(
Yours,
Laurenz Albe
--
Cyril SCETBON - Ingénieur bases de données
AUSY pour France Télécom - OPF/PORTAILS/DOP/HEBEX
Tél : +33 (0)4 97 12 87 60
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