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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
<a name="sql-release-savepoint"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2>Name</h2>
<p>RELEASE SAVEPOINT — destroy a previously defined savepoint</p>
</div>
<a name="id780637"></a><a name="id780649"></a><div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">RELEASE [ SAVEPOINT ] <em class="replaceable"><code>savepoint_name</code></em></pre>
</div>
<div class="refsect1" lang="en">
<a name="id780672"></a><h2>Description</h2>
<p> <code class="command">RELEASE SAVEPOINT</code> destroys a savepoint previously defined
in the current transaction.
</p>
<p> Destroying a savepoint makes it unavailable as a rollback point,
but it has no other user visible behavior. It does not undo the
effects of commands executed after the savepoint was established.
(To do that, see <a href="sql-rollback-to.html">ROLLBACK TO SAVEPOINT</a>.) Destroying a savepoint when
it is no longer needed may allow the system to reclaim some resources
earlier than transaction end.
</p>
<p> <code class="command">RELEASE SAVEPOINT</code> also destroys all savepoints that were
established after the named savepoint was established.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id780720"></a><h2>Parameters</h2>
<div class="variablelist"><dl>
<dt><span class="term"><em class="replaceable"><code>savepoint_name</code></em></span></dt>
<dd><p> The name of the savepoint to destroy.
</p></dd>
</dl></div>
</div>
<div class="refsect1" lang="en">
<a name="id780734"></a><h2>Notes</h2>
<p> Specifying a savepoint name that was not previously defined is an error.
</p>
<p> It is not possible to release a savepoint when the transaction is in
an aborted state.
</p>
<p> If multiple savepoints have the same name, only the one that was most
recently defined is released.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id780750"></a><h2>Examples</h2>
<p> To establish and later destroy a savepoint:
</p>
<pre class="programlisting">BEGIN;
INSERT INTO table1 VALUES (3);
SAVEPOINT my_savepoint;
INSERT INTO table1 VALUES (4);
RELEASE SAVEPOINT my_savepoint;
COMMIT;</pre>
<p>
The above transaction will insert both 3 and 4.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id780768"></a><h2>Compatibility</h2>
<p> This command conforms to the <acronym class="acronym">SQL</acronym> standard. The standard
specifies that the key word <code class="literal">SAVEPOINT</code> is
mandatory, but <span class="productname">PostgreSQL</span> allows it to
be omitted.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id780794"></a><h2>See Also</h2>
<span class="simplelist"><a href="sql-begin.html">BEGIN</a>, <a href="sql-commit.html">COMMIT</a>, <a href="sql-rollback.html">ROLLBACK</a>, <a href="sql-rollback-to.html">ROLLBACK TO SAVEPOINT</a>, <a href="sql-savepoint.html">SAVEPOINT</a></span>
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