Fix sushi project

Author: georgesittas

examples/sushi/models/customer_revenue_by_day.sql

@@ -21,7 +21,7 @@ WITH order_total AS (
   LEFT JOIN sushi.items AS i
     ON oi.item_id = i.id AND oi.event_date = i.event_date
   WHERE
-    oi.event_date BETWEEN @start_ds AND @end_ds
+    oi.event_date BETWEEN @start_date AND @end_date
   GROUP BY
     oi.order_id,
     oi.event_date
@@ -35,7 +35,7 @@ FROM sushi.orders AS o
 LEFT JOIN order_total AS ot
   ON o.id = ot.order_id AND o.event_date = ot.event_date
 WHERE
-  o.event_date BETWEEN @start_ds AND @end_ds
+  o.event_date BETWEEN @start_date AND @end_date
 GROUP BY
   o.customer_id,
   o.event_date

examples/sushi/models/waiter_as_customer_by_day.sql

@@ -27,6 +27,6 @@ SELECT
 FROM sushi.waiters AS w
 JOIN sushi.customers as c ON w.waiter_id = c.customer_id
 JOIN sushi.waiter_names as wn ON w.waiter_id = wn.id
-WHERE w.event_date BETWEEN @start_date AND @end_date;
+WHERE w.event_date BETWEEN CAST('{{ start_ds }}' as DATE) AND @end_date;
 
 JINJA_END;