server log : is this something special ?

Hi,

I was looking in our server logs because we have some strange things
happening on our site.  I found the following lines :

020702.15:11:20.633  [3331] ProcessQuery
020702.15:11:20.822  [3331] CommitTransactionCommand
020702.15:11:20.860  [3331] proc_exit(0)
020702.15:11:20.860  [3331] shmem_exit(0)
020702.15:11:20.860  [3331] exit(0)
020702.15:11:20.903  [3332] read_pg_options: verbose=2,query=2,syslog=0
020702.15:11:20.904  [3332] started: host=127.0.0.1 user=user
database=db
020702.15:11:20.904  [3332] InitPostgres

Is this something special ?  Does this mean postgres exits ?
I'm sorry if this is a stupid question.

thanks,

Henk