Fix for issue 813 - enabling prefix btree search with non-matching predicates

Change-Id: I59eb43afa7dbcabd7f43269566d75c9361c55386
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/171
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: abdullah alamoudi <bamousaa@gmail.com>
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
index 894ba63..f9c070d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
@@ -6,7 +6,7 @@
  *  Date            : 13th Aug 2012
  */
 
-// Positive test - prefix search, BTree index should be used in the query plan.
+// Positive test - prefix search, BTree index should be used in query plan
 
 drop dataverse test if exists;
 create dataverse test;
@@ -25,5 +25,5 @@
 create index sec_Idx on testdst(fname,lname);
 
 for $emp in dataset('testdst') 
-where $emp.fname = "Julio"
+where $emp.fname <= "Vanpatten"
 return $emp