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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>44.3. Data Values in PL/Tcl</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="pltcl-functions.html" title="44.2. PL/Tcl Functions and Arguments" /><link rel="next" href="pltcl-global.html" title="44.4. Global Data in PL/Tcl" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">44.3. Data Values in PL/Tcl</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="pltcl-functions.html" title="44.2. PL/Tcl Functions and Arguments">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="pltcl.html" title="Chapter 44. PL/Tcl — Tcl Procedural Language">Up</a></td><th width="60%" align="center">Chapter 44. PL/Tcl — Tcl Procedural Language</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="pltcl-global.html" title="44.4. Global Data in PL/Tcl">Next</a></td></tr></table><hr /></div><div class="sect1" id="PLTCL-DATA"><div class="titlepage"><div><div><h2 class="title" style="clear: both">44.3. Data Values in PL/Tcl <a href="#PLTCL-DATA" class="id_link">#</a></h2></div></div></div><p>
The argument values supplied to a PL/Tcl function's code are simply
the input arguments converted to text form (just as if they had been
displayed by a <code class="command">SELECT</code> statement). Conversely, the
<code class="literal">return</code> and <code class="literal">return_next</code> commands will accept
any string that is acceptable input format for the function's declared
result type, or for the specified column of a composite result type.
</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="pltcl-functions.html" title="44.2. PL/Tcl Functions and Arguments">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="pltcl.html" title="Chapter 44. PL/Tcl — Tcl Procedural Language">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="pltcl-global.html" title="44.4. Global Data in PL/Tcl">Next</a></td></tr><tr><td width="40%" align="left" valign="top">44.2. PL/Tcl Functions and Arguments </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"> 44.4. Global Data in PL/Tcl</td></tr></table></div></body></html>
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