fix the operation name

dd-java-agent/src/main/java/com/datadoghq/trace/agent/integration/MongoHelper.java

@@ -50,9 +50,11 @@ public class MongoHelper extends DDAgentTracingHelper<MongoClientOptions.Builder
     try {
       final BsonDocument normalized = new BsonDocument();
       norm(event.getCommand(), normalized);
-      span.setTag(DDTags.RESOURCE_NAME, normalized.toJson());
+      span.setTag(DDTags.RESOURCE_NAME, normalized.toString());
+      span.setOperationName("mongo.cmd");
+
     } catch (final Throwable e) {
-      log.warn("Couldn't the mongo query: " + e.getMessage(), e);
+      log.warn("Couldn't decorate the mongo query: " + e.getMessage(), e);
     }
   }
 

dd-trace/src/main/resources/dd-trace-decorators.yaml

@@ -8,5 +8,5 @@ decorators:
   - type: HTTPComponent
     matchingValue: java-aws-sdk
     setValue: aws-client
-  - type: DBStatementAsResourceName
+#  - type: DBStatementAsResourceName
   - type: ErrorFlag