--- a/server/msplanner.py	Fri Oct 18 16:04:23 2013 +0200
+++ b/server/msplanner.py	Fri Oct 18 16:58:48 2013 +0200
@@ -92,6 +92,7 @@
 
 from logilab.common.compat import any
 from logilab.common.decorators import cached
+from logilab.common.deprecation import deprecated
 
 from rql import BadRQLQuery
 from rql.stmts import Union, Select
@@ -1262,6 +1263,7 @@
         inputmap.update(step.outputmap)
 
 
+@deprecated('[3.18] old multi-source system will go away in the next version')
 class MSPlanner(SSPlanner):
     """MultiSourcesPlanner: build execution plan for rql queries