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'))