Ensure remainder orderings have a specified direction.

1 files changed, 10 insertions, 1 deletions

diff --git a/src/main/java/com/amazon/carbonado/qe/OrderingScore.java b/src/main/java/com/amazon/carbonado/qe/OrderingScore.java
index ce85cb6..a2b46b9 100644
--- a/src/main/java/com/amazon/carbonado/qe/OrderingScore.java
+++ b/src/main/java/com/amazon/carbonado/qe/OrderingScore.java
@@ -224,6 +224,13 @@ public class OrderingScore<S extends Storable> {
             }

 

             // Property not handled and not an identity filter.

+

+            if (property.getDirection() == UNSPECIFIED) {

+                // Specify a direction in order for a comparator to be later

+                // created from remainder orderings.

+                property = property.direction(ASCENDING);

+            }

+

             remainderProperties.add(property);

             indexPos = Integer.MAX_VALUE;

         }

@@ -317,7 +324,9 @@ public class OrderingScore<S extends Storable> {
 

     /**

      * Returns the ordering properties that the evaluated index does not

-     * support. The list of orderings is reduced to eliminate redundancies.

+     * support. The list of orderings is reduced to eliminate redundancies. If

+     * any remainder ordering properties originally had an unspecified

+     * direction, the direction in this list is specified as ascending.

      *

      * @return remainder orderings, never null

      */