postgresql plugin: Added support for protocol versions less than 3.

[collectd.git] / src / collectd.conf.pod

diff --git a/src/collectd.conf.pod b/src/collectd.conf.pod
index 1e71bad..5a1ced2 100644 (file)
--- a/src/collectd.conf.pod
+++ b/src/collectd.conf.pod
@@ -1078,6 +1078,9 @@ The username used to connect to the database.
 
 =back
 
+Please note that parameters are only supported by PostgreSQL's protocol
+version 3 and above which was introduced in version 7.4 of PostgreSQL.
+
 =item B<Column> I<type> [I<type instance>]
 
 Specify the I<type> and optional I<type instance> used to dispatch the value