should be it

external/duckdb/test/sql/function/generic/test_in.test

@@ -0,0 +1,238 @@
+# name: test/sql/function/generic/test_in.test
+# description: Test IN statement
+# group: [generic]
+
+statement ok
+SET default_null_order='nulls_first';
+
+statement ok
+CREATE TABLE integers(i INTEGER)
+
+statement ok
+INSERT INTO integers VALUES (1), (2), (3), (NULL);
+
+query I
+SELECT * FROM integers WHERE i IN (1, 2) ORDER BY i
+----
+1
+2
+
+query I
+SELECT * FROM integers WHERE i IN (1, 2, 3, 4, 5, 6, 7, 8) ORDER BY i
+----
+1
+2
+3
+
+query IT
+SELECT i, i IN (1, 2, 3, 4, 5, 6, 7, 8) FROM integers ORDER BY i
+----
+NULL	NULL
+1	1
+2	1
+3	1
+
+query IT
+SELECT i, i NOT IN (1, 3, 4, 5, 6, 7, 8) FROM integers ORDER BY i
+----
+NULL	NULL
+1	0
+2	1
+3	0
+
+query II
+SELECT i, i IN (1, 2, NULL, 4, 5, 6, 7, 8) FROM integers ORDER BY i
+----
+NULL	NULL
+1	1
+2	1
+3	NULL
+
+query IT
+SELECT i, i IN (i + 1) FROM integers ORDER BY i
+----
+NULL	NULL
+1	0
+2	0
+3	0
+
+query IT
+SELECT i, i IN (i + 1, 42, i) FROM integers ORDER BY i
+----
+NULL	NULL
+1	1
+2	1
+3	1
+
+query IT
+SELECT i, 1 IN (i - 1, i, i + 1) FROM integers ORDER BY i
+----
+NULL	NULL
+1	1
+2	1
+3	0
+
+query IT
+SELECT i, 1 NOT IN (i - 1, i, i + 1) FROM integers ORDER BY i
+----
+NULL	NULL
+1	0
+2	0
+3	1
+
+query IT
+SELECT i, i IN (11, 12, 13, 14, 15, 16, 17, 18, 1, i) FROM integers ORDER BY i
+----
+NULL	NULL
+1	1
+2	1
+3	1
+
+query IT
+SELECT i, i NOT IN (11, 12, 13, 14, 15, 16, 17, 18, 1, i) FROM integers ORDER BY i
+----
+NULL	NULL
+1	0
+2	0
+3	0
+
+query IT
+SELECT i, 1 IN (11, 12, 13, 14, 15, 16, 17, 18, 1, i) FROM integers ORDER BY i
+----
+NULL	1
+1	1
+2	1
+3	1
+
+query IT
+SELECT i, 1 NOT IN (11, 12, 13, 14, 15, 16, 17, 18, 1, i) FROM integers ORDER BY i
+----
+NULL	0
+1	0
+2	0
+3	0
+
+query IT
+SELECT i, i IN ((SELECT MAX(i) FROM integers), (SELECT MIN(i) FROM integers)) FROM integers ORDER BY i
+----
+NULL	NULL
+1	1
+2	0
+3	1
+
+query III
+SELECT i, (SELECT MAX(i) FROM integers WHERE i <> i1.i), (SELECT MIN(i) FROM integers WHERE i <= i1.i) FROM integers i1 ORDER BY i
+----
+NULL	NULL	NULL
+1	3	1
+2	3	1
+3	2	1
+
+query IT
+SELECT i, i IN ((SELECT MAX(i) FROM integers WHERE i <> i1.i), (SELECT MIN(i) FROM integers WHERE i <= i1.i)) FROM integers i1 ORDER BY i
+----
+NULL	NULL
+1	1
+2	0
+3	0
+
+query I
+SELECT 1 IN [1, 2, 3];
+----
+true
+
+query I
+SELECT 1 IN [2, 2, 3];
+----
+false
+
+statement ok
+PREPARE v1 AS SELECT 1 IN ?
+
+query I
+EXECUTE v1([]);
+----
+false
+
+query I
+SELECT 1 IN [];
+----
+false
+
+query I
+EXECUTE v1([1, 2, 3]);
+----
+true
+
+query I
+EXECUTE v1([2, 2, 3]);
+----
+false
+
+# Test <expr> IN <column_ref>
+
+query I
+with list_provider as (
+	select [1, 2] as lst
+)
+SELECT i FROM (
+	from integers, list_provider
+) t(i, lst) WHERE i IN lst ORDER BY i
+----
+1
+2
+
+query I
+with list_provider as (
+	select [1, 2, 3, 4, 5, 6, 7, 8] as lst
+)
+SELECT i FROM (
+	from integers, list_provider
+) t(i, lst) WHERE i IN lst ORDER BY i
+----
+1
+2
+3
+
+query II
+with list_provider as (
+	select [1, 2, 3, 4, 5, 6, 7, 8] as lst
+)
+SELECT i, i IN lst FROM (
+	from integers, list_provider
+) t(i, lst) order by i
+----
+NULL	NULL
+1	1
+2	1
+3	1
+
+query II
+with list_provider as (
+	select [1, 3, 4, 5, 6, 7, 8] as lst
+)
+SELECT i, i NOT IN lst FROM (
+	from integers, list_provider
+) t(i, lst) order by i
+----
+NULL	NULL
+1	0
+2	1
+3	0
+
+query II
+with list_provider as (
+	select [1, 2, NULL, 4, 5, 6, 7, 8] as lst
+)
+SELECT i, i IN lst FROM (
+	from integers, list_provider
+) t(i, lst) order by i
+----
+NULL	NULL
+1	1
+2	1
+3	0
+
+# ^ Note the '0' on the last row
+# This is different from regular IN behavior
+