Function nullif_int32

datafusion/functions/src/core/nullif.rs:165–197

()

    #[test]
    fn nullif_int32() -> Result<()> {
        let a = Int32Array::from(vec![
            Some(1),
            Some(2),
            None,
            None,
            Some(3),
            None,
            None,
            Some(4),
            Some(5),
        ]);
        let a = ColumnarValue::Array(Arc::new(a));

        let lit_array = ColumnarValue::Scalar(ScalarValue::Int32(Some(2i32)));

        let result = nullif_func(&[a, lit_array])?;
        let result = result.into_array(0).expect("Failed to convert to array");

        let expected = Arc::new(Int32Array::from(vec![
            Some(1),
            None,
            None,
            None,
            Some(3),
            None,
            None,
            Some(4),
            Some(5),
        ])) as ArrayRef;
        assert_eq!(expected.as_ref(), result.as_ref());
        Ok(())
    }

    #[test]
    // Ensure that arrays with no nulls can also invoke NULLIF() correctly