diff --git a/conf/evolutions/default/4.sql b/conf/evolutions/default/4.sql
new file mode 100644
index 000000000..c3d9b844b
--- /dev/null
+++ b/conf/evolutions/default/4.sql
@@ -0,0 +1,12 @@
+# --- Indexing on severity,finish_time for count on welcome page
+# --- !Ups
+
+create index yarn_app_result_i9 on yarn_app_result (severity,finish_time);
+
+# --- !Downs
+
+drop index yarn_app_result_i9 on yarn_app_result;
+
+
+
+