Provided by: postgresql-client-8.4_8.4.11-1_amd64 bug


       CHECKPOINT - force a transaction log checkpoint




       Write-Ahead  Logging  (WAL)  puts  a checkpoint in the transaction log every so often. (To
       adjust  the  automatic  checkpoint  interval,  see  the  run-time  configuration   options
       checkpoint_segments  and  checkpoint_timeout.)  The CHECKPOINT command forces an immediate
       checkpoint when the command is issued, without waiting for a scheduled checkpoint.

       A checkpoint is a point in the transaction log sequence at which all data files have  been
       updated  to  reflect  the  information in the log. All data files will be flushed to disk.
       Refer to in the documentation for more information about the WAL system.

       Only superusers can call CHECKPOINT. The command is not intended  for  use  during  normal


       The CHECKPOINT command is a PostgreSQL language extension.