Index some array functions, per Mario Splivalo.

doc/src/sgml/func.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.473 2009/03/23 21:00:38 adunstan Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.474 2009/04/01 03:32:29 tgl Exp $ -->
 
  <chapter id="functions">
   <title>Functions and Operators</title>
@@ -9338,6 +9338,46 @@ SELECT NULLIF(value, '(none)') ...
    for more discussion and examples of the use of these functions.
   </para>
 
+  <indexterm>
+    <primary>array_append</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_cat</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_ndims</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_dims</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_fill</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_length</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_lower</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_prepend</primary>
+  </indexterm>
+  <indexterm>
+    <primary>array_to_string</primary>
+  </indexterm>
+ <indexterm>
+    <primary>array_upper</primary>
+  </indexterm>
+  <indexterm>
+    <primary>cardinality</primary>
+  </indexterm>
+  <indexterm>
+    <primary>string_to_array</primary>
+  </indexterm>
+  <indexterm>
+    <primary>unnest</primary>
+  </indexterm>
+
     <table id="array-functions-table">
      <title>Array Functions</title>
      <tgroup cols="5">