--- a/cubicweb/rqlrewrite.py	Sun Feb 02 22:15:38 2020 +0100
+++ b/cubicweb/rqlrewrite.py	Wed Mar 13 00:15:48 2019 +0100
@@ -245,7 +245,7 @@
         vreg = session.vreg
         self.schema = vreg.schema
         self.annotate = vreg.rqlhelper.annotate
-        self._compute_solutions = vreg.solutions
+        self._compute_solutions = vreg.compute_var_types
 
     def compute_solutions(self):
         self.annotate(self.select)