for_each always needs its input

1 files changed, 1 insertions, 1 deletions

diff --git a/indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguage/ExpressionOptimizer.java b/indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguage/ExpressionOptimizer.java
index 9cdcdf001d7..bad8b94d074 100644
--- a/indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguage/ExpressionOptimizer.java
+++ b/indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguage/ExpressionOptimizer.java
@@ -59,7 +59,7 @@ public class ExpressionOptimizer extends ExpressionConverter {
     }
 
     static boolean ignoresInput(Expression exp) {
-        if (exp instanceof SwitchExpression || exp instanceof ScriptExpression) {
+        if (exp instanceof SwitchExpression || exp instanceof ScriptExpression || exp instanceof ForEachExpression ) {
             return false;  // Switch and script never ignores input.
         }
         if (exp instanceof CompositeExpression) {