Add note that inlined SQL functions aren't tracked by track_functions.

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index c205732f0df8faaac1243cb57e129ffe757b6ad7..069ab9a8fb2d0be8c1bbdab9e2a3c47ee5741a09 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1,4 +1,4 @@
-
+
 
 
   Server Configuration
@@ -3361,11 +3361,19 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
       
        
         Enables tracking of function call counts and time used. Specify
-        pl to count only procedural language functions,
+        pl to track only procedural-language functions,
         all to also track SQL and C language functions.
-        The default is none.
-        Only superusers can change this setting.
+        The default is none, which disables function
+        statistics tracking.  Only superusers can change this setting.
        
+
+       
+        
+         SQL-language functions that are simple enough to be inlined
+         into the calling query will not be tracked, regardless of this
+         setting.
+        
+