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-rw-r--r--doc/src/sgml/features.sgml9
-rw-r--r--doc/src/sgml/func.sgml30
2 files changed, 39 insertions, 0 deletions
diff --git a/doc/src/sgml/features.sgml b/doc/src/sgml/features.sgml
index 575afa34760..966fd398827 100644
--- a/doc/src/sgml/features.sgml
+++ b/doc/src/sgml/features.sgml
@@ -199,6 +199,15 @@
standard.
</para>
</listitem>
+
+ <listitem>
+ <para>
+ <productname>PostgreSQL</productname> does not support the
+ <literal>RETURNING CONTENT</literal> or <literal>RETURNING SEQUENCE</literal>
+ clauses, functions which are defined to have these in the specification
+ are implicitly returning content.
+ </para>
+ </listitem>
</itemizedlist>
</para>
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index a6fcac0824a..d963f0a0a00 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -14180,6 +14180,36 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
documents for processing in client applications.
</para>
+ <sect3 id="functions-producing-xml-xmltext">
+ <title><literal>xmltext</literal></title>
+
+ <indexterm>
+ <primary>xmltext</primary>
+ </indexterm>
+
+<synopsis>
+<function>xmltext</function> ( <type>text</type> ) <returnvalue>xml</returnvalue>
+</synopsis>
+
+ <para>
+ The function <function>xmltext</function> returns an XML value with a single
+ text node containing the input argument as its content. Predefined entities
+ like ampersand (<literal><![CDATA[&]]></literal>), left and right angle brackets
+ (<literal><![CDATA[< >]]></literal>), and quotation marks (<literal><![CDATA[""]]></literal>)
+ are escaped.
+ </para>
+
+ <para>
+ Example:
+<screen><![CDATA[
+SELECT xmltext('< foo & bar >');
+ xmltext
+-------------------------
+ &lt; foo &amp; bar &gt;
+]]></screen>
+ </para>
+ </sect3>
+
<sect3 id="functions-producing-xml-xmlcomment">
<title><literal>xmlcomment</literal></title>