Tweak description of payload parameter.

diff --git a/doc/src/sgml/ref/notify.sgml b/doc/src/sgml/ref/notify.sgml
index b612bb4cb2a9884684bd6135b36882755f71c604..dca5a1d1cbfe6af8e0dfe1077cb17158a9440073 100644 (file)
--- a/doc/src/sgml/ref/notify.sgml
+++ b/doc/src/sgml/ref/notify.sgml
@@ -1,5 +1,5 @@
 
 
@@ -139,8 +139,8 @@ NOTIFY channel [ , 
     
      
       The payload string to be communicated along with the
-      notification. This string must be shorter than 8000 bytes, and
-      is treated as text.
+      notification.  This must be specified as a simple string literal.
+      In the default configuration it must be shorter than 8000 bytes.
       (If binary data or large amounts of information need to be communicated,
       it's best to put it in a database table and send the key of the record.)