Compute hash without serializing to string

1 files changed, 6 insertions, 0 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/ReduceJoin.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/ReduceJoin.java
index 7505355beed..ccb437ef5a7 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/functions/ReduceJoin.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/ReduceJoin.java
@@ -11,6 +11,7 @@ import com.yahoo.tensor.evaluation.Name;
 
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 import java.util.function.DoubleBinaryOperator;
 import java.util.stream.Collectors;
 
@@ -322,6 +323,11 @@ public class ReduceJoin<NAMETYPE extends Name> extends CompositeTensorFunction<N
                                 Reduce.commaSeparated(dimensions) + ")";
     }
 
+    @Override
+    public int hashCode() {
+        return Objects.hash("reduce_join", argumentA, argumentB, combinator, aggregator, dimensions);
+    }
+
     private static class MultiDimensionIterator {
 
         private final long[] bounds;