GUAC-830: Add concurrency limitations to schema and mapping.

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-postgresql/schema/upgrade/upgrade-pre-0.9.8.sql

@@ -39,3 +39,17 @@ ALTER TABLE guacamole_user ADD COLUMN valid_until date;
 --
 
 ALTER TABLE guacamole_user ADD COLUMN timezone varchar(64);
+
+--
+-- Add connection concurrency limits
+--
+
+ALTER TABLE guacamole_connection ADD COLUMN max_connections          integer;
+ALTER TABLE guacamole_connection ADD COLUMN max_connections_per_user integer;
+
+--
+-- Add connection group concurrency limits
+--
+
+ALTER TABLE guacamole_connection_group ADD COLUMN max_connections          integer;
+ALTER TABLE guacamole_connection_group ADD COLUMN max_connections_per_user integer;