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CHECKPOINT(7) PostgreSQL 9.5.0 Documentation CHECKPOINT(7)
CHECKPOINT - force a transaction log 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 Section 29.4, "WAL
Configuration", in the documentation for more details about what
happens during a checkpoint.
The 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 Section 18.5.2, "Checkpoints", in
the documentation). CHECKPOINT is not intended for use during normal
If executed during recovery, the CHECKPOINT command will force a
restartpoint (see Section 29.4, "WAL Configuration", in the
documentation) rather than writing a new checkpoint.
Only superusers can call CHECKPOINT.
The CHECKPOINT command is a PostgreSQL language extension.
PostgreSQL 9.5.0 2016 CHECKPOINT(7)