Add mention of how to use \df to find functions using/returning specific

data types.

diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
index 8b2289164a0341e92c0ccbb6f3a848c29cfd9584..e6bbcea60b17ccd9a7d75d32a95a2e966199c6b4 100644 (file)
--- a/doc/src/sgml/ref/psql-ref.sgml
+++ b/doc/src/sgml/ref/psql-ref.sgml
@@ -1,5 +1,5 @@
 
 
@@ -904,12 +904,17 @@ testdb=>
         return types. If 
         class="parameter">pattern
         is specified, only functions whose names match the pattern are shown.
-   If the form
-        \df+ is used, additional information about
+   If the form \df+ is used, additional information about
         each function, including language and description, is shown.
         
 
         
+        
+        To look up functions taking argument or returning values of a specific
+        type, use your pager's search capability to scroll through the \df
+        output.
+        
+
         
         To reduce clutter, \df does not show data type I/O
    functions.  This is implemented by ignoring functions that accept