Update SQL

ksql-workshop/ksql-workshop.sql

@@ -37,7 +37,7 @@ WHERE  STARS < 3 \
   AND  CLUB_STATUS = 'platinum';
 
 CREATE TABLE RATINGS_BY_CLUB_STATUS AS \
-SELECT CLUB_STATUS, COUNT(*) AS RATING_COUNT \
+SELECT WindowStart() AS WINDOW_START_TS, CLUB_STATUS, COUNT(*) AS RATING_COUNT \
 FROM RATINGS_WITH_CUSTOMER_DATA \
      WINDOW TUMBLING (SIZE 1 MINUTES) \
 GROUP BY CLUB_STATUS;