use Relevance.toString()

* avoids costly Double.toString() for JSON rendering

1 files changed, 2 insertions, 1 deletions

diff --git a/container-search/src/main/java/com/yahoo/search/rendering/JsonRenderer.java b/container-search/src/main/java/com/yahoo/search/rendering/JsonRenderer.java
index c39f0387d46..dd8e261a6b7 100644
--- a/container-search/src/main/java/com/yahoo/search/rendering/JsonRenderer.java
+++ b/container-search/src/main/java/com/yahoo/search/rendering/JsonRenderer.java
@@ -488,7 +488,8 @@ public class JsonRenderer extends AsynchronousSectionedRenderer<Result> {
         if (id != null)
             generator.writeStringField(ID, id);
 
-        generator.writeNumberField(RELEVANCE, hit.getRelevance().getScore());
+        generator.writeFieldName(RELEVANCE);
+        generator.writeNumber(hit.getRelevance().toString());
 
         if (hit.types().size() > 0) { // TODO: Remove types rendering on Vespa 7
             generator.writeArrayFieldStart(TYPES);