SELECT 1 IN (1)
SELECT 1 IN (1)
SELECT 1 IN (1, 2)
SELECT 1 IN f(1)
SELECT 1 IN f(1)
SELECT 1 IN (f(1), f(2))
SELECT 1 IN f(1, 2)
SELECT 1 IN (1 + 1)
SELECT 1 IN ('hello')
SELECT 1 IN f('hello')
SELECT 1 IN ('hello', 'world')
SELECT 1 IN f('hello', 'world')
SELECT 1 IN (SELECT 1)