should be it

external/duckdb/extension/tpcds/dsdgen/queries/97.sql

@@ -0,0 +1,35 @@
+WITH ssci AS
+  (SELECT ss_customer_sk customer_sk ,
+          ss_item_sk item_sk
+   FROM store_sales,
+        date_dim
+   WHERE ss_sold_date_sk = d_date_sk
+     AND d_month_seq BETWEEN 1200 AND 1200 + 11
+   GROUP BY ss_customer_sk ,
+            ss_item_sk),
+     csci as
+  ( SELECT cs_bill_customer_sk customer_sk ,cs_item_sk item_sk
+   FROM catalog_sales,date_dim
+   WHERE cs_sold_date_sk = d_date_sk
+     AND d_month_seq BETWEEN 1200 AND 1200 + 11
+   GROUP BY cs_bill_customer_sk ,cs_item_sk)
+SELECT sum(CASE
+               WHEN ssci.customer_sk IS NOT NULL
+                    AND csci.customer_sk IS NULL THEN 1
+               ELSE 0
+           END) store_only ,
+       sum(CASE
+               WHEN ssci.customer_sk IS NULL
+                    AND csci.customer_sk IS NOT NULL THEN 1
+               ELSE 0
+           END) catalog_only ,
+       sum(CASE
+               WHEN ssci.customer_sk IS NOT NULL
+                    AND csci.customer_sk IS NOT NULL THEN 1
+               ELSE 0
+           END) store_and_catalog
+FROM ssci
+FULL OUTER JOIN csci ON (ssci.customer_sk=csci.customer_sk
+                         AND ssci.item_sk = csci.item_sk)
+LIMIT 100;
+