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/* syntax version 1 */
/* postgres can not */
PRAGMA AnsiInForEmptyOrNullableItemsCollections;
SELECT
1 IN AsSet(2, 3, null), -- Nothing<Bool?>
null IN SetCreate(Int32), -- false?
null IN AsSet(null), -- Nothing<Bool?>
null IN AsSet(1), -- Nothing<Bool?>
(1, null) IN AsSet((1, 1), (2, 2)), -- Nothing<Bool?>
(1, null) IN AsSet((2, 2), (3, 3)), -- false?
(1, 2) IN AsSet((1, null), (2, 2)), -- Nothing<Bool?>
(1, 2) IN AsSet((null, 1), (2, 1)), -- false?
(1, 2) IN AsSet((1, null), (2, 1)), -- Nothing<Bool?>
;
SELECT
Just(1) IN AsSet(1, 2, 3), -- true?
1 IN AsSet(Just(2), Just(3)), -- false?
;
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