should be it

external/duckdb/test/sql/pivot/pivot_bigquery.test

@@ -0,0 +1,98 @@
+# name: test/sql/pivot/pivot_bigquery.test
+# description: Tests from the bigquery docs
+# group: [pivot]
+
+# https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#pivot_operator
+# https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#unpivot_operator
+# pivot
+
+statement ok
+PRAGMA enable_verification
+
+statement ok
+CREATE TABLE Produce AS
+  SELECT 'Kale' as product, 51 as sales, 'Q1' as quarter, 2020 as year UNION ALL
+  SELECT 'Kale', 23, 'Q2', 2020 UNION ALL
+  SELECT 'Kale', 45, 'Q3', 2020 UNION ALL
+  SELECT 'Kale', 3, 'Q4', 2020 UNION ALL
+  SELECT 'Kale', 70, 'Q1', 2021 UNION ALL
+  SELECT 'Kale', 85, 'Q2', 2021 UNION ALL
+  SELECT 'Apple', 77, 'Q1', 2020 UNION ALL
+  SELECT 'Apple', 0, 'Q2', 2020 UNION ALL
+  SELECT 'Apple', 1, 'Q1', 2021
+
+query IIIIII
+SELECT * FROM Produce
+PIVOT(SUM(sales) FOR quarter IN ('Q1', 'Q2', 'Q3', 'Q4'))
+ORDER BY ALL
+----
+Apple	2020	77	0	NULL	NULL
+Apple	2021	1	NULL	NULL	NULL
+Kale	2020	51	23	45	3
+Kale	2021	70	85	NULL	NULL
+
+query IIIII
+SELECT * FROM
+  (SELECT product, sales, quarter FROM Produce)
+  PIVOT(SUM(sales) FOR quarter IN ('Q1', 'Q2', 'Q3', 'Q4'))
+ORDER BY ALL
+----
+Apple	78	0	NULL	NULL
+Kale	121	108	45	3
+
+query IIII
+SELECT * FROM
+  (SELECT product, sales, quarter FROM Produce)
+  PIVOT(SUM(sales) FOR quarter IN ('Q1', 'Q2', 'Q3'))
+  ORDER BY ALL
+----
+Apple	78	0	NULL
+Kale	121	108	45
+
+query III
+SELECT * FROM
+  (SELECT sales, quarter FROM Produce)
+  PIVOT(SUM(sales) FOR quarter IN ('Q1', 'Q2', 'Q3'))
+  ORDER BY ALL
+----
+199	108	45
+
+query IIIII
+SELECT * FROM
+  (SELECT product, sales, quarter FROM Produce)
+  PIVOT(SUM(sales) total_sales, COUNT(*) num_records FOR quarter IN ('Q1', 'Q2'))
+ORDER BY ALL
+----
+Apple	78	2	0	1
+Kale	121	2	108	2
+
+statement ok
+CREATE OR REPLACE TABLE Produce AS
+  SELECT 'Kale' as product, 51 as Q1, 23 as Q2, 45 as Q3, 3 as Q4 UNION ALL
+  SELECT 'Apple', 77, 0, 25, 2
+
+query III
+SELECT * FROM Produce
+UNPIVOT(sales FOR quarter IN (Q1, Q2, Q3, Q4))
+ORDER BY ALL
+----
+Apple	Q1	77
+Apple	Q2	0
+Apple	Q3	25
+Apple	Q4	2
+Kale	Q1	51
+Kale	Q2	23
+Kale	Q3	45
+Kale	Q4	3
+
+query IIII
+SELECT product, first_half_sales, second_half_sales, semesters FROM Produce
+UNPIVOT(
+  (first_half_sales, second_half_sales)
+  FOR semesters
+  IN ((Q1, Q2) AS 'semester_1', (Q3, Q4) AS 'semester_2'))
+----
+Kale	51	23	semester_1
+Kale	45	3	semester_2
+Apple	77	0	semester_1
+Apple	25	2	semester_2