should be it

external/duckdb/test/sql/pivot/pivot_prepare.test

@@ -0,0 +1,63 @@
+# name: test/sql/pivot/pivot_prepare.test
+# description: Test preparing pivot statements
+# group: [pivot]
+
+statement ok
+CREATE OR REPLACE TABLE monthly_sales(empid INT, amount INT, month TEXT);
+
+statement ok
+INSERT INTO monthly_sales VALUES
+    (1, 10000, '1-JAN'),
+    (1, 400, '1-JAN'),
+    (2, 4500, '1-JAN'),
+    (2, 35000, '1-JAN'),
+    (1, 5000, '2-FEB'),
+    (1, 3000, '2-FEB'),
+    (2, 200, '2-FEB'),
+    (2, 90500, '2-FEB'),
+    (1, 6000, '3-MAR'),
+    (1, 5000, '3-MAR'),
+    (2, 2500, '3-MAR'),
+    (2, 9500, '3-MAR'),
+    (1, 8000, '4-APR'),
+    (1, 10000, '4-APR'),
+    (2, 800, '4-APR'),
+    (2, 4500, '4-APR');
+
+statement ok
+PREPARE v1 AS SELECT *
+  FROM monthly_sales
+    PIVOT(SUM(amount + ?) FOR MONTH IN ('1-JAN', '2-FEB', '3-MAR', '4-APR'))
+      AS p
+  ORDER BY EMPID;
+
+query IIIII
+EXECUTE v1(0)
+----
+1	10400	8000	11000	18000
+2	39500	90700	12000	5300
+
+# expressions in pivot
+query IIIII
+EXECUTE v1(1)
+----
+1	10402	8002	11002	18002
+2	39502	90702	12002	5302
+
+# prepare top-level pivot stmt
+statement ok
+PREPARE v2 AS
+   PIVOT monthly_sales ON MONTH USING SUM(AMOUNT + ?)
+
+query IIIII rowsort
+EXECUTE v2(1)
+----
+1	10402	8002	11002	18002
+2	39502	90702	12002	5302
+
+# parameters within subquery of top-level pivot statement not supported
+statement error
+PREPARE v3 AS
+   PIVOT (SELECT empid, amount + ? AS amount, month FROM monthly_sales) ON MONTH USING SUM(AMOUNT)
+----
+cannot have parameters in their source