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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >RELEASE SAVEPOINT</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="REINDEX" HREF="sql-reindex.html"><LINK REL="NEXT" TITLE="RESET" HREF="sql-reset.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="REINDEX" HREF="sql-reindex.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="RESET" HREF="sql-reset.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-RELEASE-SAVEPOINT" ></A >RELEASE SAVEPOINT</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN76969" ></A ><H2 >Name</H2 >RELEASE SAVEPOINT -- destroy a previously defined savepoint</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN76977" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >RELEASE [ SAVEPOINT ] <TT CLASS="REPLACEABLE" ><I >savepoint_name</I ></TT ></PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN76980" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >RELEASE SAVEPOINT</TT > 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 allows the system to reclaim some resources earlier than transaction end. </P ><P > <TT CLASS="COMMAND" >RELEASE SAVEPOINT</TT > also destroys all savepoints that were established after the named savepoint was established. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN76988" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="REPLACEABLE" ><I >savepoint_name</I ></TT ></DT ><DD ><P > The name of the savepoint to destroy. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN76996" ></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" ><A NAME="AEN77001" ></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" ><A NAME="AEN77005" ></A ><H2 >Compatibility</H2 ><P > This command conforms to the <ACRONYM CLASS="ACRONYM" >SQL</ACRONYM > standard. The standard specifies that the key word <TT CLASS="LITERAL" >SAVEPOINT</TT > is mandatory, but <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > allows it to be omitted. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77011" ></A ><H2 >See Also</H2 ><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 ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sql-reindex.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sql-reset.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >REINDEX</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >RESET</TD ></TR ></TABLE ></DIV ></BODY ></HTML >