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-39.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
index a9d32c3..a480186 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
@@ -1,12 +1,12 @@
 /*
  *  Description     : BTree Index verification test
- *                  : This test is intended to verify that the secondary BTree index is NOT used 
- *                  : in the optimized query plan.
+ *                  : This test is intended to verify that the secondary BTree index is NOT used in the optimized query plan.
  *  Expected Result : Success
  *  Date            : 13th Aug 2012
  */
 
-// Negative test
+// THE BTREE INDEX IN THIS CASE SHOULD NOT BE PICKED UP!!!!
+// Verify that the optimized query plan does not have the BTree search
 
 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" or $emp.lname = "Malaika"
+where $emp.lname = "Kim"
 return $emp