neilconway opened a new issue, #10792:
URL: https://github.com/apache/arrow-rs/issues/10792
### Describe the bug
See repro; the cast ought to work.
### To Reproduce
```rust
use arrow_array::{ArrayRef, StringArray, Float64Array};
use arrow_cast::{can_cast_types, cast};
use arrow_schema::DataType;
use std::sync::Arc;
assert!(can_cast_types(&DataType::Utf8, &DataType::Decimal128(10, -2)));
let strings: ArrayRef = Arc::new(StringArray::from(vec!["100"]));
cast(&strings, &DataType::Decimal128(10, -2)).unwrap();
// Err: Invalid argument error: Cannot cast string to decimal with negative
scale -2
// (also with CastOptions { safe: true })
let floats: ArrayRef = Arc::new(Float64Array::from(vec![100.0]));
cast(&floats, &DataType::Decimal128(10, -2)).unwrap(); // works
```
### Expected behavior
_No response_
### Additional context
_No response_
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