CHECKPOINT — force a write-ahead log checkpoint
A checkpoint is a point in the write-ahead 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 Section 29.4 for more details about what happens during a checkpoint.
CHECKPOINT command forces an immediate
checkpoint when the command is issued, without waiting for a
regular checkpoint scheduled by the system (controlled by the settings in
CHECKPOINT is not intended for use during normal
If executed during recovery, the
will force a restartpoint (see Section 29.4)
rather than writing a new checkpoint.
Only superusers can call
CHECKPOINT command is a
PostgreSQL language extension.