Propagate type information through ranking expressions

1 files changed, 4 insertions, 0 deletions

diff --git a/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/rule/ConstantNode.java b/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/rule/ConstantNode.java
index cd473ae6a6f..e6074a5f745 100755
--- a/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/rule/ConstantNode.java
+++ b/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/rule/ConstantNode.java
@@ -3,6 +3,7 @@ package com.yahoo.searchlib.rankingexpression.rule;
 
 import com.yahoo.searchlib.rankingexpression.evaluation.Context;
 import com.yahoo.searchlib.rankingexpression.evaluation.Value;
+import com.yahoo.searchlib.rankingexpression.evaluation.ValueType;
 
 import java.util.Deque;
 
@@ -47,6 +48,9 @@ public final class ConstantNode extends ExpressionNode {
     }
 
     @Override
+    public ValueType type(Context context) { return value.type(); }
+
+    @Override
     public Value evaluate(Context context) {
         return value;
     }