MOD function

MOD returns the remainder (modulus) of argument 1 divided by argument 2. The result is negative only if argument 1 is negative.

mod(integer_type, integer_type)

The result of the function is:

SMALLINT if both arguments are SMALLINT.
INTEGER if one argument is INTEGER and the other is INTEGER or SMALLINT.
BIGINT if one integer is BIGINT and the other argument is BIGINT, INTEGER, or SMALLINT.

The result can be null; if any argument is null, the result is the null value.