Omega359 opened a new issue, #6734:
URL: https://github.com/apache/arrow-rs/issues/6734
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
Casting temporal to utf8view is not currently supported.
```Rust
#[test]
fn test_cast_timestamp_to_strings() {
// "2018-12-25T00:00:02.001", "1997-05-19T00:00:03.005", None
let array =
TimestampMillisecondArray::from(vec![Some(864000003005),
Some(1545696002001), None]);
let out = cast(&array, &DataType::Utf8).unwrap();
let out = out
.as_any()
.downcast_ref::<StringArray>()
.unwrap()
.into_iter()
.collect::<Vec<_>>();
assert_eq!(
out,
vec![
Some("1997-05-19T00:00:03.005"),
Some("2018-12-25T00:00:02.001"),
None
]
);
let out = cast(&array, &DataType::LargeUtf8).unwrap();
let out = out
.as_any()
.downcast_ref::<LargeStringArray>()
.unwrap()
.into_iter()
.collect::<Vec<_>>();
assert_eq!(
out,
vec![
Some("1997-05-19T00:00:03.005"),
Some("2018-12-25T00:00:02.001"),
None
]
);
let out = cast(&array, &DataType::Utf8View).unwrap();
let out = out
.as_any()
.downcast_ref::<StringViewArray>()
.unwrap()
.into_iter()
.collect::<Vec<_>>();
assert_eq!(
out,
vec![
Some("1997-05-19T00:00:03.005"),
Some("2018-12-25T00:00:02.001"),
None
]
);
}
```
`CastError("Casting from Timestamp(Millisecond, None) to Utf8View not
supported")`
**Describe the solution you'd like**
Casting from temporal to utf8view arrays is supported.
**Describe alternatives you've considered**
**Additional context**
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