1 files changed, 12 insertions, 0 deletions
diff --git a/container-search/src/main/java/com/yahoo/search/yql/VespaSerializer.java b/container-search/src/main/java/com/yahoo/search/yql/VespaSerializer.java
index 012f427a781..897bcde4fc3 100644
--- a/container-search/src/main/java/com/yahoo/search/yql/VespaSerializer.java
+++ b/container-search/src/main/java/com/yahoo/search/yql/VespaSerializer.java
@@ -97,6 +97,7 @@ import com.yahoo.prelude.query.SuffixItem;
 import com.yahoo.prelude.query.TaggableItem;
 import com.yahoo.prelude.query.ToolBox;
 import com.yahoo.prelude.query.ToolBox.QueryVisitor;
+import com.yahoo.prelude.query.TrueItem;
 import com.yahoo.prelude.query.UriItem;
 import com.yahoo.prelude.query.WandItem;
 import com.yahoo.prelude.query.WeakAndItem;
@@ -484,6 +485,16 @@ public class VespaSerializer {
 
     }
 
+    private static class TrueSerializer extends Serializer<TrueItem> {
+        @Override
+        void onExit(StringBuilder destination, TrueItem item) { }
+        @Override
+        boolean serialize(StringBuilder destination, TrueItem item) {
+            destination.append("true");
+            return false;
+        }
+    }
+
     private static class FalseSerializer extends Serializer<FalseItem> {
         @Override
         void onExit(StringBuilder destination, FalseItem item) { }
@@ -1205,6 +1216,7 @@ public class VespaSerializer {
         dispatchBuilder.put(IntItem.class, new NumberSerializer());
         dispatchBuilder.put(GeoLocationItem.class, new GeoLocationSerializer());
         dispatchBuilder.put(BoolItem.class, new BoolSerializer());
+        dispatchBuilder.put(TrueItem.class, new TrueSerializer());
         dispatchBuilder.put(FalseItem.class, new FalseSerializer());
         dispatchBuilder.put(MarkerWordItem.class, new WordSerializer()); // gotcha
         dispatchBuilder.put(NearItem.class, new NearSerializer());