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<!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>20.18. Short Options</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="runtime-config-developer.html" title="20.17. Developer Options" /><link rel="next" href="client-authentication.html" title="Chapter 21. Client Authentication" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">20.18. Short Options</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="runtime-config-developer.html" title="20.17. Developer Options">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="runtime-config.html" title="Chapter 20. Server Configuration">Up</a></td><th width="60%" align="center">Chapter 20. Server Configuration</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="client-authentication.html" title="Chapter 21. Client Authentication">Next</a></td></tr></table><hr /></div><div class="sect1" id="RUNTIME-CONFIG-SHORT"><div class="titlepage"><div><div><h2 class="title" style="clear: both">20.18. Short Options</h2></div></div></div><p>
For convenience there are also single letter command-line option
switches available for some parameters. They are described in
<a class="xref" href="runtime-config-short.html#RUNTIME-CONFIG-SHORT-TABLE" title="Table 20.4. Short Option Key">Table 20.4</a>. Some of these
options exist for historical reasons, and their presence as a
single-letter option does not necessarily indicate an endorsement
to use the option heavily.
</p><div class="table" id="RUNTIME-CONFIG-SHORT-TABLE"><p class="title"><strong>Table 20.4. Short Option Key</strong></p><div class="table-contents"><table class="table" summary="Short Option Key" border="1"><colgroup><col class="col1" /><col class="col2" /></colgroup><thead><tr><th>Short Option</th><th>Equivalent</th></tr></thead><tbody><tr><td><code class="option">-B <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">shared_buffers = <em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-d <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">log_min_messages = DEBUG<em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-e</code></td><td><code class="literal">datestyle = euro</code></td></tr><tr><td>
<code class="option">-fb</code>, <code class="option">-fh</code>, <code class="option">-fi</code>,
<code class="option">-fm</code>, <code class="option">-fn</code>, <code class="option">-fo</code>,
<code class="option">-fs</code>, <code class="option">-ft</code>
</td><td>
<code class="literal">enable_bitmapscan = off</code>,
<code class="literal">enable_hashjoin = off</code>,
<code class="literal">enable_indexscan = off</code>,
<code class="literal">enable_mergejoin = off</code>,
<code class="literal">enable_nestloop = off</code>,
<code class="literal">enable_indexonlyscan = off</code>,
<code class="literal">enable_seqscan = off</code>,
<code class="literal">enable_tidscan = off</code>
</td></tr><tr><td><code class="option">-F</code></td><td><code class="literal">fsync = off</code></td></tr><tr><td><code class="option">-h <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">listen_addresses = <em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-i</code></td><td><code class="literal">listen_addresses = '*'</code></td></tr><tr><td><code class="option">-k <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">unix_socket_directories = <em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-l</code></td><td><code class="literal">ssl = on</code></td></tr><tr><td><code class="option">-N <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">max_connections = <em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-O</code></td><td><code class="literal">allow_system_table_mods = on</code></td></tr><tr><td><code class="option">-p <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">port = <em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-P</code></td><td><code class="literal">ignore_system_indexes = on</code></td></tr><tr><td><code class="option">-s</code></td><td><code class="literal">log_statement_stats = on</code></td></tr><tr><td><code class="option">-S <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">work_mem = <em class="replaceable"><code>x</code></em></code></td></tr><tr><td><code class="option">-tpa</code>, <code class="option">-tpl</code>, <code class="option">-te</code></td><td><code class="literal">log_parser_stats = on</code>,
<code class="literal">log_planner_stats = on</code>,
<code class="literal">log_executor_stats = on</code></td></tr><tr><td><code class="option">-W <em class="replaceable"><code>x</code></em></code></td><td><code class="literal">post_auth_delay = <em class="replaceable"><code>x</code></em></code></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="runtime-config-developer.html" title="20.17. Developer Options">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="runtime-config.html" title="Chapter 20. Server Configuration">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="client-authentication.html" title="Chapter 21. Client Authentication">Next</a></td></tr><tr><td width="40%" align="left" valign="top">20.17. Developer Options </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> Chapter 21. Client Authentication</td></tr></table></div></body></html>
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