/* postgres can not */
select AsTuple(
AsList(1,2) < AsList(1u,3u),
AsList(1,2) < AsList(1u,2u),
AsList(1,2) < AsList(1u,1u),
AsList(1,2) < AsList(2u,1u),
AsList(1,2) < AsList(2u,3u),
AsList(1,2/1) < AsList(1u,3u),
AsList(1,2/1) < AsList(1u,2u),
AsList(1,2/1) < AsList(1u,1u),
AsList(1,2/0) < AsList(2u,3u),
AsList(1,2/0) < AsList(1u,3u),
);

select AsTuple(
AsList(1,2) <= AsList(1u,3u),
AsList(1,2) <= AsList(1u,2u),
AsList(1,2) <= AsList(1u,1u),
AsList(1,2) <= AsList(2u,1u),
AsList(1,2) <= AsList(2u,3u),
AsList(1,2/1) <= AsList(1u,3u),
AsList(1,2/1) <= AsList(1u,2u),
AsList(1,2/1) <= AsList(1u,1u),
AsList(1,2/0) <= AsList(2u,3u),
AsList(1,2/0) <= AsList(1u,3u),
);

select AsTuple(
AsList(1,2) > AsList(1u,3u),
AsList(1,2) > AsList(1u,2u),
AsList(1,2) > AsList(1u,1u),
AsList(1,2) > AsList(2u,1u),
AsList(1,2) > AsList(2u,3u),
AsList(1,2/1) > AsList(1u,3u),
AsList(1,2/1) > AsList(1u,2u),
AsList(1,2/1) > AsList(1u,1u),
AsList(1,2/0) > AsList(2u,3u),
AsList(1,2/0) > AsList(1u,3u),
);

select AsTuple(
AsList(1,2) >= AsList(1u,3u),
AsList(1,2) >= AsList(1u,2u),
AsList(1,2) >= AsList(1u,1u),
AsList(1,2) >= AsList(2u,1u),
AsList(1,2) >= AsList(2u,3u),
AsList(1,2/1) >= AsList(1u,3u),
AsList(1,2/1) >= AsList(1u,2u),
AsList(1,2/1) >= AsList(1u,1u),
AsList(1,2/0) >= AsList(2u,3u),
AsList(1,2/0) >= AsList(1u,3u),
);

select AsTuple (
AsList(1,2,3) == AsList(1u,2u),
AsList(1/1,2/1) == AsList(1u,2u),
AsList(1/1,2/0) == AsList(1u,2u)
);

select AsTuple(
AsList(1,2) < AsList(1u,2u,3u),
AsList(1,2) <= AsList(1u,2u,3u),
AsList(1,2) > AsList(1u,2u,3u),
AsList(1,2) >= AsList(1u,2u,3u),

AsList(1,2,3) < AsList(1u,2u),
AsList(1,2,3) <= AsList(1u,2u),
AsList(1,2,3) > AsList(1u,2u),
AsList(1,2,3) >= AsList(1u,2u),
);