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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>H.3. Procedural Languages</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 V1.79.1" /><link rel="prev" href="external-admin-tools.html" title="H.2. Administration Tools" /><link rel="next" href="external-extensions.html" title="H.4. Extensions" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">H.3. Procedural Languages</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="external-admin-tools.html" title="H.2. Administration Tools">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="external-projects.html" title="Appendix H. External Projects">Up</a></td><th width="60%" align="center">Appendix H. External Projects</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="external-extensions.html" title="H.4. Extensions">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="EXTERNAL-PL"><div class="titlepage"><div><div><h2 class="title" style="clear: both">H.3. Procedural Languages</h2></div></div></div><a id="id-1.11.9.5.2" class="indexterm"></a><p>
+   <span class="productname">PostgreSQL</span> includes several procedural
+   languages with the base distribution: <a class="link" href="plpgsql.html" title="Chapter 42. PL/pgSQL — SQL Procedural Language">PL/pgSQL</a>, <a class="link" href="pltcl.html" title="Chapter 43. PL/Tcl — Tcl Procedural Language">PL/Tcl</a>,
+   <a class="link" href="plperl.html" title="Chapter 44. PL/Perl — Perl Procedural Language">PL/Perl</a>, and <a class="link" href="plpython.html" title="Chapter 45. PL/Python — Python Procedural Language">PL/Python</a>.
+  </p><p>
+   In addition, there are a number of procedural languages that are developed
+   and maintained outside the core <span class="productname">PostgreSQL</span>
+   distribution. <a class="xref" href="external-pl.html#PL-LANGUAGE-TABLE" title="Table H.2. Externally Maintained Procedural Languages">Table H.2</a> lists some of these
+   packages. Note that some of these projects might not be released under the same
+   license as <span class="productname">PostgreSQL</span>. For more information on each
+   procedural language, including licensing information, refer to its website
+   and documentation.
+  </p><div class="table" id="PL-LANGUAGE-TABLE"><p class="title"><strong>Table H.2. Externally Maintained Procedural Languages</strong></p><div class="table-contents"><table class="table" summary="Externally Maintained Procedural Languages" border="1"><colgroup><col /><col /><col /></colgroup><thead><tr><th>Name</th><th>Language</th><th>Website</th></tr></thead><tbody><tr><td>PL/Java</td><td>Java</td><td><a class="ulink" href="https://tada.github.io/pljava/" target="_top">https://tada.github.io/pljava/</a></td></tr><tr><td>PL/Lua</td><td>Lua</td><td><a class="ulink" href="https://github.com/pllua/pllua-ng" target="_top">https://github.com/pllua/pllua-ng</a></td></tr><tr><td>PL/R</td><td>R</td><td><a class="ulink" href="https://github.com/postgres-plr/plr" target="_top">https://github.com/postgres-plr/plr</a></td></tr><tr><td>PL/sh</td><td>Unix shell</td><td><a class="ulink" href="https://github.com/petere/plsh" target="_top">https://github.com/petere/plsh</a></td></tr><tr><td>PL/v8</td><td>JavaScript</td><td><a class="ulink" href="https://github.com/plv8/plv8" target="_top">https://github.com/plv8/plv8</a></td></tr></tbody></table></div></div><br class="table-break" /></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="external-admin-tools.html" title="H.2. Administration Tools">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="external-projects.html" title="Appendix H. External Projects">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="external-extensions.html" title="H.4. Extensions">Next</a></td></tr><tr><td width="40%" align="left" valign="top">H.2. Administration Tools </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> H.4. Extensions</td></tr></table></div></body></html>
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