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diff --git a/doc/src/sgml/html/spi-transaction.html b/doc/src/sgml/html/spi-transaction.html new file mode 100644 index 0000000..16764f2 --- /dev/null +++ b/doc/src/sgml/html/spi-transaction.html @@ -0,0 +1,19 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!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>47.4. Transaction Management</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="spi-spi-freeplan.html" title="SPI_freeplan" /><link rel="next" href="spi-spi-commit.html" title="SPI_commit" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">47.4. Transaction Management</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spi-spi-freeplan.html" title="SPI_freeplan">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="spi.html" title="Chapter 47. Server Programming Interface">Up</a></td><th width="60%" align="center">Chapter 47. Server Programming Interface</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="spi-spi-commit.html" title="SPI_commit">Next</a></td></tr></table><hr /></div><div class="sect1" id="SPI-TRANSACTION"><div class="titlepage"><div><div><h2 class="title" style="clear: both">47.4. Transaction Management <a href="#SPI-TRANSACTION" class="id_link">#</a></h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="refentrytitle"><a href="spi-spi-commit.html">SPI_commit</a></span><span class="refpurpose"> — commit the current transaction</span></dt><dt><span class="refentrytitle"><a href="spi-spi-rollback.html">SPI_rollback</a></span><span class="refpurpose"> — abort the current transaction</span></dt><dt><span class="refentrytitle"><a href="spi-spi-start-transaction.html">SPI_start_transaction</a></span><span class="refpurpose"> — obsolete function</span></dt></dl></div><p> + It is not possible to run transaction control commands such + as <code class="command">COMMIT</code> and <code class="command">ROLLBACK</code> through SPI + functions such as <code class="function">SPI_execute</code>. There are, however, + separate interface functions that allow transaction control through SPI. + </p><p> + It is not generally safe and sensible to start and end transactions in + arbitrary user-defined SQL-callable functions without taking into account + the context in which they are called. For example, a transaction boundary + in the middle of a function that is part of a complex SQL expression that + is part of some SQL command will probably result in obscure internal errors + or crashes. The interface functions presented here are primarily intended + to be used by procedural language implementations to support transaction + management in SQL-level procedures that are invoked by the <code class="command">CALL</code> + command, taking the context of the <code class="command">CALL</code> invocation into + account. SPI-using procedures implemented in C can implement the same logic, but + the details of that are beyond the scope of this documentation. + </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="spi-spi-freeplan.html" title="SPI_freeplan">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="spi.html" title="Chapter 47. Server Programming Interface">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="spi-spi-commit.html" title="SPI_commit">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SPI_freeplan </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"> SPI_commit</td></tr></table></div></body></html>
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