diff --git a/etc/radar-jdbc-connector-data-dashboard-backend/values.yaml b/etc/radar-jdbc-connector-data-dashboard-backend/values.yaml
index 4e6968628..a90f4c692 100644
--- a/etc/radar-jdbc-connector-data-dashboard-backend/values.yaml
+++ b/etc/radar-jdbc-connector-data-dashboard-backend/values.yaml
@@ -4,10 +4,4 @@ sink:
   tableNameFormat: observation
   insertMode: insert
   primaryKeys:
-    fields:
-      - PROJECT
-      - SUBJECT
-      - SOURCE
-      - TOPIC_NAME
-      - VARIABLE
-      - OBSERVATION_TIME
\ No newline at end of file
+    mode: none
\ No newline at end of file