|The PostgreSQL 9.0 Reference Manual - Volume 1B - SQL Command Reference
by The PostgreSQL Global Development Group
Paperback (6"x9"), 488 pages
RRP £14.95 ($19.95)
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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 command forces an immediate
checkpoint when the command is issued, without waiting for a
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 Volume 3: Reliability and the Write-Ahead Log for more information about the WAL system.
If executed during recovery, the
will force a restartpoint rather than writing a new checkpoint.
Only superusers can call
CHECKPOINT. The command is
not intended for use during normal operation.
CHECKPOINT command is a
PostgreSQL language extension.
|ISBN 9781906966058||The PostgreSQL 9.0 Reference Manual - Volume 1B - SQL Command Reference||See the print edition|