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-rw-r--r--doc/src/sgml/ref/commit_prepared.sgml12
-rw-r--r--doc/src/sgml/ref/prepare_transaction.sgml12
-rw-r--r--doc/src/sgml/ref/rollback_prepared.sgml12
3 files changed, 36 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/commit_prepared.sgml b/doc/src/sgml/ref/commit_prepared.sgml
index 2af677fcb06..ecd0c525f20 100644
--- a/doc/src/sgml/ref/commit_prepared.sgml
+++ b/doc/src/sgml/ref/commit_prepared.sgml
@@ -84,6 +84,18 @@ COMMIT PREPARED 'foobar';
</refsect1>
<refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ <command>COMMIT PREPARED</command> is a
+ <productname>PostgreSQL</productname> extension. It is intended for use by
+ external transaction management systems, some of which are covered by
+ standards (such as X/Open XA), but the SQL side of those systems is not
+ standardized.
+ </para>
+ </refsect1>
+
+ <refsect1>
<title>See Also</title>
<simplelist type="inline">
diff --git a/doc/src/sgml/ref/prepare_transaction.sgml b/doc/src/sgml/ref/prepare_transaction.sgml
index a10aa35d386..a379819a0aa 100644
--- a/doc/src/sgml/ref/prepare_transaction.sgml
+++ b/doc/src/sgml/ref/prepare_transaction.sgml
@@ -157,6 +157,18 @@ PREPARE TRANSACTION 'foobar';
</refsect1>
<refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ <command>PREPARE TRANSACTION</command> is a
+ <productname>PostgreSQL</productname> extension. It is intended for use by
+ external transaction management systems, some of which are covered by
+ standards (such as X/Open XA), but the SQL side of those systems is not
+ standardized.
+ </para>
+ </refsect1>
+
+ <refsect1>
<title>See Also</title>
<simplelist type="inline">
diff --git a/doc/src/sgml/ref/rollback_prepared.sgml b/doc/src/sgml/ref/rollback_prepared.sgml
index 9592b92f321..514e5ae441a 100644
--- a/doc/src/sgml/ref/rollback_prepared.sgml
+++ b/doc/src/sgml/ref/rollback_prepared.sgml
@@ -84,6 +84,18 @@ ROLLBACK PREPARED 'foobar';
</refsect1>
<refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ <command>ROLLBACK PREPARED</command> is a
+ <productname>PostgreSQL</productname> extension. It is intended for use by
+ external transaction management systems, some of which are covered by
+ standards (such as X/Open XA), but the SQL side of those systems is not
+ standardized.
+ </para>
+ </refsect1>
+
+ <refsect1>
<title>See Also</title>
<simplelist type="inline">