I am getting WARNING at log file:
Jan 6 11:19:54 dev04 postgres[14624]: [1622-1] DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
Jan 6 11:19:54 dev04 postgres[14624]: [1623-1] LOG: could not send data to client: Broken pipe
Jan 6 11:19:54 dev04 postgres[14624]: [1624-1] DEBUG: CommitTransaction
Jan 6 11:19:54 dev04 postgres[14624]: [1625-1] DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
Jan 6 11:19:54 dev04 postgres[14624]: [1626-1] DEBUG: proc_exit(0)
Jan 6 11:19:54 dev04 postgres[14624]: [1627-1] DEBUG: shmem_exit(0)
Jan 6 11:19:54 dev04 postgres[14624]: [1628-1] DEBUG: exit(0)
Jan 6 11:19:54 dev04 postgres[11989]: [1613-1] DEBUG: forked new backend, pid=14624 socket=8
Jan 6 11:19:54 dev04 postgres[11989]: [1614-1] DEBUG: reaping dead processes
Jan 6 11:19:54 dev04 postgres[11989]: [1615-1] DEBUG: server process (PID 14624) exited with exit code 0
This message has been got by setting debug5 at log_min_messages and client_min_messages.