Problem with postgres log file

Hello all!

How can i make line in log file like this?
#timestamp             #pid     #message
980127.17:52:14.173 [29271] StartTransactionCommand

I have read in documentation about file pg_options.
But I have got only these lines in the log file:

ProcessQuery
CommitTransactionCommand
StartTransactionCommand
query: SELECT "istorid","manager","manager_id" FROM "istor" WHERE "istorid" = 'History_100000001110' OR "istorid" =
'His
tory_100000001113' OR "istorid" = 'History_100000001113' OR "istorid" = 'History_100000001113' OR "istorid" =
'History_1
00000001113' OR "istorid" = 'History_100000001113' OR "istorid" = 'History_100000001113' OR "istorid" =
'History_1000000
01113' OR "istorid" = 'History_100000001113' OR "istorid" = 'History_100000001113'
ProcessQuery
CommitTransactionCommand
proc_exit(0) [#0]
shmem_exit(0) [#0]
exit(0)

There are no any timestamp or any pid here.
What is a problem or my error?

Postgres 6.4.2 on Red Hat Linux.

Thank's
            Natalya Makushina.
            mak@rtsoft.msk.ru