diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index f125f376883..431e0c10fa8 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.347.2.4 2007/02/20 00:25:16 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.347.2.5 2007/02/20 14:05:02 momjian Exp $ -->
 
  <chapter id="functions">
   <title>Functions and Operators</title>
@@ -411,22 +411,6 @@
     <literal>IS NOT NULL</literal>, respectively, except that the input
     expression must be of Boolean type.
    </para>
- 
-   <para>
-    <indexterm>
-     <primary>IS OF</primary>
-    </indexterm>
-    <indexterm>
-     <primary>IS NOT OF</primary>
-    </indexterm>
-    It is possible to check the data type of an expression using the
-    constructs
-<synopsis>
-<replaceable>expression</replaceable> IS OF (typename, ...)
-<replaceable>expression</replaceable> IS NOT OF (typename, ...)
-</synopsis>
-    They return a boolean value based on whether the expression's data
-    type is one of the listed data types.
   </sect1>
 
   <sect1 id="functions-math">
diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index fb064151b30..760a76b5b82 100644
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.111.2.1 2007/02/20 00:25:16 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.111.2.2 2007/02/20 14:05:02 momjian Exp $ -->
 
 <chapter id="sql-syntax">
  <title>SQL Syntax</title>
@@ -847,8 +847,7 @@ SELECT (5 !) - 6;
       <row>
        <entry><token>IS</token></entry>
        <entry></entry>
-       <entry><literal>IS TRUE</>, <literal>IS FALSE</>, <literal>IS
-       UNKNOWN</>, <literal>IS NULL</>, <literal>IS OF</></entry>
+       <entry><literal>IS TRUE</>, <literal>IS FALSE</>, <literal>IS UNKNOWN</>, <literal>IS NULL</></entry>
       </row>
 
       <row>