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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 13:44:03 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 13:44:03 +0000 |
| commit | 293913568e6a7a86fd1479e1cff8e2ecb58d6568 (patch) | |
| tree | fc3b469a3ec5ab71b36ea97cc7aaddb838423a0c /doc/src/sgml/html/sql-checkpoint.html | |
| parent | Initial commit. (diff) | |
| download | postgresql-16-293913568e6a7a86fd1479e1cff8e2ecb58d6568.tar.xz postgresql-16-293913568e6a7a86fd1479e1cff8e2ecb58d6568.zip | |
Adding upstream version 16.2.upstream/16.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/sql-checkpoint.html')
| -rw-r--r-- | doc/src/sgml/html/sql-checkpoint.html | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/doc/src/sgml/html/sql-checkpoint.html b/doc/src/sgml/html/sql-checkpoint.html new file mode 100644 index 0000000..41e456f --- /dev/null +++ b/doc/src/sgml/html/sql-checkpoint.html @@ -0,0 +1,28 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>CHECKPOINT</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-call.html" title="CALL" /><link rel="next" href="sql-close.html" title="CLOSE" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">CHECKPOINT</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-call.html" title="CALL">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-close.html" title="CLOSE">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-CHECKPOINT"><div class="titlepage"></div><a id="id-1.9.3.49.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">CHECKPOINT</span></h2><p>CHECKPOINT — force a write-ahead log checkpoint</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis"> +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="30.5. WAL Configuration">Section 30.5</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="20.5.2. Checkpoints">Section 20.5.2</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="30.5. WAL Configuration">Section 30.5</a>) + rather than writing a new checkpoint. + </p><p> + Only superusers or users with the privileges of + the <a class="link" href="predefined-roles.html#PREDEFINED-ROLES-TABLE" title="Table 22.1. Predefined Roles"><code class="literal">pg_checkpoint</code></a> + role 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" title="CALL">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-close.html" title="CLOSE">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" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="40%" align="right" valign="top"> CLOSE</td></tr></table></div></body></html>
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