presto-main/src/main/java/io/prestosql/type/RealOperators.java/RealOperators/notEqual
class RealOperators:    @ScalarOperator(NOT_EQUAL)
    @SqlType(StandardTypes.BOOLEAN)
    @SqlNullable
    public static Boolean notEqual(@SqlType(StandardTypes.REAL) long left, @SqlType(StandardTypes.REAL) long right)
    {
        return intBitsToFloat((int) left) != intBitsToFloat((int) right);
    }