Mention that autovacuum also needs stats.

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 6e9cc4817db4d841ebf562144f6a7ecb6061044d..504568ae63caaf13f96d2036ba49a13c8060a716 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1,5 +1,5 @@
 
 
   Run-time Configuration
@@ -2920,6 +2920,8 @@ SELECT * FROM parent WHERE key = 2400;
        
         Controls whether the server should start the
         autovacuum subprocess.  This is off by default.
+        stats_start_collector and stats_row_level
+        must also be on for this to start.
         This option can only be set at server start or in the
         postgresql.conf file.