change array_agg

views/sessions.view.lkml

@@ -158,7 +158,8 @@ extends: [event_funnel, page_funnel]
   dimension: event_data {
     hidden: yes
     type: string
-    sql:  SELECT ARRAY_AGG(event_data) FROM sessions ;;
+    sql: WITH t1 AS(SELECT ARRAY_AGG(${TABLE}.event_data) as event_data)
+    SELECT event_data FROM t1;;
     ## This is the parent array that contains the event_data struct elements. It is not directly useably as a dimension.
     ## It is necessary for proper unnesting in the model Join.
   }