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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_freetuptable</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-freetuple.html" title="SPI_freetuple" /><link rel="next" href="spi-spi-freeplan.html" title="SPI_freeplan" /></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">SPI_freetuptable</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spi-spi-freetuple.html" title="SPI_freetuple">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="spi-memory.html" title="46.3. Memory Management">Up</a></td><th width="60%" align="center">46.3. Memory Management</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="spi-spi-freeplan.html" title="SPI_freeplan">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SPI-SPI-FREETUPLETABLE"><div class="titlepage"></div><a id="id-1.8.12.10.13.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">SPI_freetuptable</span></h2><p>SPI_freetuptable — free a row set created by <code class="function">SPI_execute</code> or a similar
- function</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
- void SPI_freetuptable(SPITupleTable * <em class="parameter"><code>tuptable</code></em>)
- </pre></div><div class="refsect1" id="id-1.8.12.10.13.5"><h2>Description</h2><p>
- <code class="function">SPI_freetuptable</code> frees a row set created by a
- prior SPI command execution function, such as
- <code class="function">SPI_execute</code>. Therefore, this function is often called
- with the global variable <code class="varname">SPI_tuptable</code> as
- argument.
- </p><p>
- This function is useful if an SPI-using C function needs to execute
- multiple commands and does not want to keep the results of earlier
- commands around until it ends. Note that any unfreed row sets will
- be freed anyway at <code class="function">SPI_finish</code>.
- Also, if a subtransaction is started and then aborted within execution
- of an SPI-using C function, SPI automatically frees any row sets created while
- the subtransaction was running.
- </p><p>
- Beginning in <span class="productname">PostgreSQL</span> 9.3,
- <code class="function">SPI_freetuptable</code> contains guard logic to protect
- against duplicate deletion requests for the same row set. In previous
- releases, duplicate deletions would lead to crashes.
- </p></div><div class="refsect1" id="id-1.8.12.10.13.6"><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">SPITupleTable * <em class="parameter"><code>tuptable</code></em></code></span></dt><dd><p>
- pointer to row set to free, or NULL to do nothing
- </p></dd></dl></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="spi-spi-freetuple.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="spi-memory.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="spi-spi-freeplan.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SPI_freetuple </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> SPI_freeplan</td></tr></table></div></body></html>
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