valkum opened a new issue, #9101:
URL: https://github.com/apache/arrow-rs/issues/9101
**Describe the bug**
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A clear and concise description of what the bug is.
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I tried to unpack a dict in a memory-efficient way by casting to Utf8View
but got a panic.
**To Reproduce**
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Steps to reproduce the behavior:
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```rust
let etld_values = LargeStringArray::from(vec!["com", "org", "net"]);
let etld_keys = UInt32Array::from(vec![0, 1, 0, 2]);
let etld: ArrayRef = Arc::new(DictionaryArray::new(etld_keys,
Arc::new(etld_values)));
let result = cast(&etld, &DataType::Utf8View).unwrap();
assert_eq!(result.len(), 4);
dbg!(&result);
```
**Expected behavior**
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A clear and concise description of what you expected to happen.
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Should not panic and return a `Utf8View` (`StringViewArray`).
Or should panic higher up with a better error.
**Additional context**
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Add any other context about the problem here.
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