108 lines
2.6 KiB
Plaintext
108 lines
2.6 KiB
Plaintext
<!--
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doc/src/sgml/ref/commit_prepared.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-commit-prepared">
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<indexterm zone="sql-commit-prepared">
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<primary>COMMIT PREPARED</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>COMMIT PREPARED</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>COMMIT PREPARED</refname>
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<refpurpose>commit a transaction that was earlier prepared for two-phase commit</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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COMMIT PREPARED <replaceable class="parameter">transaction_id</replaceable>
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>COMMIT PREPARED</command> commits a transaction that is in
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prepared state.
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><replaceable class="parameter">transaction_id</replaceable></term>
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<listitem>
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<para>
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The transaction identifier of the transaction that is to be
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committed.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Notes</title>
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<para>
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To commit a prepared transaction, you must be either the same user that
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executed the transaction originally, or a superuser. But you do not
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have to be in the same session that executed the transaction.
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</para>
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<para>
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This command cannot be executed inside a transaction block. The prepared
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transaction is committed immediately.
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</para>
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<para>
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All currently available prepared transactions are listed in the
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<link linkend="view-pg-prepared-xacts"><structname>pg_prepared_xacts</structname></link>
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system view.
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</para>
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</refsect1>
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<refsect1 id="sql-commit-prepared-examples">
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<title>Examples</title>
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<para>
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Commit the transaction identified by the transaction
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identifier <literal>foobar</literal>:
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<programlisting>
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COMMIT PREPARED 'foobar';
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</programlisting></para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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<command>COMMIT PREPARED</command> is a
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<productname>PostgreSQL</productname> extension. It is intended for use by
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external transaction management systems, some of which are covered by
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standards (such as X/Open XA), but the SQL side of those systems is not
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standardized.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-prepare-transaction"/></member>
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<member><xref linkend="sql-rollback-prepared"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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