Omega359 opened a new issue, #6713:
URL: https://github.com/apache/arrow-rs/issues/6713
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
While working on upgrading to DF 43 I discovered that casting support for
utf8view <-> bool has not been implemented
**Describe the solution you'd like**
Support casting to/from bool with utf8view's
**Additional context**
arrow-cast/src/cast/mod.rs
```
#[test]
fn test_cast_utf8view_to_bool() {
let strings = StringViewArray::from(vec!["true", "false", "invalid",
" Y ", ""]);
let casted = cast(&strings, &DataType::Boolean).unwrap();
let expected = BooleanArray::from(vec![Some(true), Some(false),
None, Some(true), None]);
assert_eq!(*as_boolean_array(&casted), expected);
}
#[test]
fn test_cast_with_options_utf8view_to_bool() {
let strings = StringViewArray::from(vec!["true", "false", "invalid",
" Y ", ""]);
let casted = cast_with_options(
&strings,
&DataType::Boolean,
&CastOptions {
safe: false,
format_options: FormatOptions::default(),
},
);
match casted {
Ok(_) => panic!("expected error"),
Err(e) => {
assert!(e
.to_string()
.contains("Cast error: Cannot cast value 'invalid' to
value of Boolean type"))
}
}
}
#[test]
fn test_cast_bool_to_utf8view() {
let array = BooleanArray::from(vec![Some(true), Some(false), None]);
let b = cast(&array, &DataType::Utf8View).unwrap();
let c = b.as_any().downcast_ref::<StringViewArray>().unwrap();
assert_eq!("true", c.value(0));
assert_eq!("false", c.value(1));
assert!(!c.is_valid(2));
}
```
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