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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_start_transaction</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-rollback.html" title="SPI_rollback" /><link rel="next" href="spi-visibility.html" title="46.5. Visibility of Data Changes" /></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_start_transaction</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spi-spi-rollback.html" title="SPI_rollback">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="spi-transaction.html" title="46.4. Transaction Management">Up</a></td><th width="60%" align="center">46.4. Transaction Management</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-visibility.html" title="46.5. Visibility of Data Changes">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SPI-SPI-START-TRANSACTION"><div class="titlepage"></div><a id="id-1.8.12.11.6.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">SPI_start_transaction</span></h2><p>SPI_start_transaction — start a new transaction</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
void SPI_start_transaction(void)
</pre></div><div class="refsect1" id="id-1.8.12.11.6.5"><h2>Description</h2><p>
<code class="function">SPI_start_transaction</code> starts a new transaction. It
can only be called after <code class="function">SPI_commit</code>
or <code class="function">SPI_rollback</code>, as there is no transaction active at
that point. Normally, when an SPI-using procedure is called, there is already a
transaction active, so attempting to start another one before closing out
the current one will result in an error.
</p><p>
This function can only be executed if the SPI connection has been set as
nonatomic in the call to <code class="function">SPI_connect_ext</code>.
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