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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>43.12. Tcl Procedure Names</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="pltcl-config.html" title="43.11. PL/Tcl Configuration" /><link rel="next" href="plperl.html" title="Chapter 44. PL/Perl - Perl Procedural Language" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">43.12. Tcl Procedure Names</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="pltcl-config.html" title="43.11. PL/Tcl Configuration">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="pltcl.html" title="Chapter 43. PL/Tcl - Tcl Procedural Language">Up</a></td><th width="60%" align="center">Chapter 43. PL/Tcl - Tcl Procedural Language</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 12.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="plperl.html" title="Chapter 44. PL/Perl - Perl Procedural Language">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="PLTCL-PROCNAMES"><div class="titlepage"><div><div><h2 class="title" style="clear: both">43.12. Tcl Procedure Names</h2></div></div></div><p>
- In <span class="productname">PostgreSQL</span>, the same function name can be used for
- different function definitions as long as the number of arguments or their types
- differ. Tcl, however, requires all procedure names to be distinct.
- PL/Tcl deals with this by making the internal Tcl procedure names contain
- the object
- ID of the function from the system table <code class="structname">pg_proc</code> as part of their name. Thus,
- <span class="productname">PostgreSQL</span> functions with the same name
- and different argument types will be different Tcl procedures, too. This
- is not normally a concern for a PL/Tcl programmer, but it might be visible
- when debugging.
- </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="pltcl-config.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="pltcl.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="plperl.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">43.11. PL/Tcl Configuration </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 44. PL/Perl - Perl Procedural Language</td></tr></table></div></body></html>
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