presto-main/src/main/java/io/prestosql/type/DoubleOperators.java/DoubleOperators/notEqual
class DoubleOperators:    @ScalarOperator(NOT_EQUAL)
    @SuppressWarnings("FloatingPointEquality")
    @SqlType(StandardTypes.BOOLEAN)
    @SqlNullable
    public static Boolean notEqual(@SqlType(StandardTypes.DOUBLE) double left, @SqlType(StandardTypes.DOUBLE) double right)
    {
        return left != right;
    }