'\" t
.\"     Title: CHECKPOINT
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 2026
.\"    Manual: PostgreSQL 15.18 Documentation
.\"    Source: PostgreSQL 15.18
.\"  Language: English
.\"
.TH "CHECKPOINT" "7" "2026" "PostgreSQL 15.18" "PostgreSQL 15.18 Documentation"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
CHECKPOINT \- force a write\-ahead log checkpoint
.SH "SYNOPSIS"
.sp
.nf
CHECKPOINT
.fi
.SH "DESCRIPTION"
.PP
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\ \&30.5
for more details about what happens during a checkpoint\&.
.PP
The
\fBCHECKPOINT\fR
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\ \&20.5.2)\&.
\fBCHECKPOINT\fR
is not intended for use during normal operation\&.
.PP
If executed during recovery, the
\fBCHECKPOINT\fR
command will force a restartpoint (see
Section\ \&30.5) rather than writing a new checkpoint\&.
.PP
Only superusers or users with the privileges of the
pg_checkpoint
role can call
\fBCHECKPOINT\fR\&.
.SH "COMPATIBILITY"
.PP
The
\fBCHECKPOINT\fR
command is a
PostgreSQL
language extension\&.