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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>SPI_getvalue</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="spi-spi-fnumber.html" title="SPI_fnumber" /><link rel="next" href="spi-spi-getbinval.html" title="SPI_getbinval" /></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">SPI_getvalue</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spi-spi-fnumber.html" title="SPI_fnumber">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="spi-interface-support.html" title="46.2. Interface Support Functions">Up</a></td><th width="60%" align="center">46.2. Interface Support Functions</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="spi-spi-getbinval.html" title="SPI_getbinval">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SPI-SPI-GETVALUE"><div class="titlepage"></div><a id="id-1.8.12.9.6.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">SPI_getvalue</span></h2><p>SPI_getvalue — return the string value of the specified column</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
+char * SPI_getvalue(HeapTuple <em class="parameter"><code>row</code></em>, TupleDesc <em class="parameter"><code>rowdesc</code></em>, int <em class="parameter"><code>colnumber</code></em>)
+</pre></div><div class="refsect1" id="id-1.8.12.9.6.5"><h2>Description</h2><p>
+   <code class="function">SPI_getvalue</code> returns the string representation
+   of the value of the specified column.
+  </p><p>
+   The result is returned in memory allocated using
+   <code class="function">palloc</code>.  (You can use
+   <code class="function">pfree</code> to release the memory when you don't
+   need it anymore.)
+  </p></div><div class="refsect1" id="id-1.8.12.9.6.6"><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">HeapTuple <em class="parameter"><code>row</code></em></code></span></dt><dd><p>
+      input row to be examined
+     </p></dd><dt><span class="term"><code class="literal">TupleDesc <em class="parameter"><code>rowdesc</code></em></code></span></dt><dd><p>
+      input row description
+     </p></dd><dt><span class="term"><code class="literal">int <em class="parameter"><code>colnumber</code></em></code></span></dt><dd><p>
+      column number (count starts at 1)
+     </p></dd></dl></div></div><div class="refsect1" id="id-1.8.12.9.6.7"><h2>Return Value</h2><p>
+   Column value, or <code class="symbol">NULL</code> if the column is null,
+   <em class="parameter"><code>colnumber</code></em> is out of range
+   (<code class="varname">SPI_result</code> is set to
+   <code class="symbol">SPI_ERROR_NOATTRIBUTE</code>), or no output function is
+   available (<code class="varname">SPI_result</code> is set to
+   <code class="symbol">SPI_ERROR_NOOUTFUNC</code>).
+  </p></div></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="spi-spi-fnumber.html" title="SPI_fnumber">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="spi-interface-support.html" title="46.2. Interface Support Functions">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="spi-spi-getbinval.html" title="SPI_getbinval">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SPI_fnumber </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"> SPI_getbinval</td></tr></table></div></body></html>
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