From 8ae33e04e77fac969c789c73d36d43a87f7797ce Mon Sep 17 00:00:00 2001
From: Max Neunhoeffer <max@arangodb.com>
Date: Thu, 11 Jun 2015 11:50:51 +0200
Subject: [PATCH] Fix selectivity estimate by casting to double before
 division.

---
 lib/Basics/AssocMulti.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Basics/AssocMulti.h b/lib/Basics/AssocMulti.h
index c0d766a84c..3a4ec9f6e8 100644
--- a/lib/Basics/AssocMulti.h
+++ b/lib/Basics/AssocMulti.h
@@ -805,7 +805,8 @@ namespace triagens {
             nrCollisions += b._nrCollisions;
           }
           return nrUsed > 0 ?
-                 (nrUsed - nrCollisions) / nrUsed :
+                 static_cast<double>(nrUsed - nrCollisions) 
+                 / static_cast<double>(nrUsed) :
                  1.0;
         }