Hanging locks?

I have a situation regarding locks that nobody seems to own:

using psql:

Chipoteka=3D> select pg_class.relname,pg_locks.* from pg_class,pg_locks=20
where pg_class.relfilenode=3Dpg_locks.relation;
   relname    | locktype | database | relation | page | tuple |=20
transactionid | classid | objid | objsubid | transaction | pid  |=20=20=20=
=20=20=20
mode       | granted
--------------+----------+----------+----------+------+-------+------------=
---+---------+-------+----------+-------------+------+-----------------+---=
------
 valuta       | relation |   366513 |   366657 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518231 |    |=20
AccessShareLock | t
 jezik        | relation |   366513 |   366567 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4202257 |    |=20
AccessShareLock | t
 jezik        | relation |   366513 |   366567 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518231 |    |=20
AccessShareLock | t
 serverconfig | relation |   366513 |   375491 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518231 |    |=20
AccessShareLock | t
 mjesto       | relation |   366513 |   366584 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518231 |    |=20
AccessShareLock | t
 drzava       | relation |   366513 |   366550 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518231 |    |=20
AccessShareLock | t
 orgjed       | relation |   366513 |   366596 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4202257 |    |=20
AccessShareLock | t
 serverconfig | relation |   366513 |   375491 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4202257 |    |=20
AccessShareLock | t
 serverconfig | relation |   366513 |   375491 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518229 |    |=20
AccessShareLock | t
 drzava       | relation |   366513 |   366550 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4202257 |    |=20
AccessShareLock | t
 valuta       | relation |   366513 |   366657 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518229 |    |=20
AccessShareLock | t
 jezik        | relation |   366513 |   366567 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518229 |    |=20
AccessShareLock | t
 valuta       | relation |   366513 |   366657 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4202257 |    |=20
AccessShareLock | t
 pg_class     | relation |   366513 |     1259 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4658945 | 5709 |=20
AccessShareLock | t
 orgjed       | relation |   366513 |   366596 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518231 |    |=20
AccessShareLock | t
 pg_locks     | relation |   366513 |    10342 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4658945 | 5709 |=20
AccessShareLock | t
 drzava       | relation |   366513 |   366550 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518229 |    |=20
AccessShareLock | t
 mjesto       | relation |   366513 |   366584 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4202257 |    |=20
AccessShareLock | t
 orgjed       | relation |   366513 |   366596 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518229 |    |=20
AccessShareLock | t
 mjesto       | relation |   366513 |   366584 |      |=20=20=20=20=20=20=
=20
|               |         |       |          |     4518229 |    |=20
AccessShareLock | t
(20 rows)

from the shell:

kresot@kreso:~$ ps auxw|grep post
postgres  1388  0.0  0.4 151980  6304 ?        S    09:16   0:00=20
/usr/lib/postgresql/8.1/bin/postmaster -D /var/lib/postgresql/8.1/main=20
-c unix_socket_directory=3D/var/run/postgresql -c=20
config_file=3D/etc/postgresql/8.1/main/postgresql.conf -c=20
hba_file=3D/etc/postgresql/8.1/main/pg_hba.conf -c=20
ident_file=3D/etc/postgresql/8.1/main/pg_ident.conf -c=20
external_pid_file=3D/var/run/postgresql/8.1-main.pid
postgres  1390  0.0  5.7 152128 89944 ?        S    09:16   0:00=20
postgres: writer process=20=20
postgres  1391  0.0  0.1  10728  1884 ?        S    09:16   0:00=20
postgres: stats buffer process=20=20
postgres  1392  0.0  0.0  10016  1424 ?        S    09:16   0:00=20
postgres: stats collector process=20=20
kresot    5699  0.0  0.0   3224   636 pts/0    S+   11:11   0:00 grep post

The situation is the same after I restart postgres.

My environment: postgres 8.1.4 on debian.

Is this a bug, or am I doing something wrong?

--=20
Kre=C5=A1imir Tonkovi=C4=87
Z-el d.o.o.
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Fax: +385 1 2022 741
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e-mail: z-el.tonkovic@chipoteka.hr