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- CHECKPOINT
- </pre></div><div class="refsect1" id="id-1.9.3.49.5"><h2>Description</h2><p>
- 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
- <a class="xref" href="wal-configuration.html" title="29.4. WAL Configuration">Section 29.4</a> for more details about what happens
- during a checkpoint.
- </p><p>
- The <code class="command">CHECKPOINT</code> 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
- <a class="xref" href="runtime-config-wal.html#RUNTIME-CONFIG-WAL-CHECKPOINTS" title="19.5.2. Checkpoints">Section 19.5.2</a>).
- <code class="command">CHECKPOINT</code> is not intended for use during normal
- operation.
- </p><p>
- If executed during recovery, the <code class="command">CHECKPOINT</code> command
- will force a restartpoint (see <a class="xref" href="wal-configuration.html" title="29.4. WAL Configuration">Section 29.4</a>)
- rather than writing a new checkpoint.
- </p><p>
- Only superusers can call <code class="command">CHECKPOINT</code>.
- </p></div><div class="refsect1" id="id-1.9.3.49.6"><h2>Compatibility</h2><p>
- The <code class="command">CHECKPOINT</code> command is a
- <span class="productname">PostgreSQL</span> language extension.
- </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-call.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-close.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">CALL </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> CLOSE</td></tr></table></div></body></html>
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