andygrove opened a new issue, #3317:
URL: https://github.com/apache/arrow-datafusion/issues/3317
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
```
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/accessor.rs":234
_ => unreachable!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/jit/reader.rs":139
_ => unimplemented!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/jit/reader.rs":158
_ => unimplemented!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/jit/writer.rs":207
_ => unimplemented!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/layout.rs":160
_ => unreachable!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":71
$NATIVE::from_le_bytes($SELF.data[start..end].try_into().unwrap())
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":84
$NATIVE::from_le_bytes(self.data[start..end].try_into().unwrap())
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":302
.unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":310
.unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":337
let to = to.as_any_mut().downcast_mut::<BinaryBuilder>().unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":350
let to = to.as_any_mut().downcast_mut::<BinaryBuilder>().unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":377
_ => unimplemented!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/reader.rs":404
_ => unimplemented!(),
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/writer.rs":304
.unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/writer.rs":329
let from = from.as_any().downcast_ref::<Date32Array>().unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/writer.rs":339
let from = from.as_any().downcast_ref::<Date64Array>().unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/writer.rs":349
let from = from.as_any().downcast_ref::<StringArray>().unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/writer.rs":364
let from = from.as_any().downcast_ref::<BinaryArray>().unwrap();
"/home/andy/git/apache/arrow-datafusion/datafusion/row/src/writer.rs":397
_ => unimplemented!(),
```
**Describe the solution you'd like**
Use `Result` instead
**Describe alternatives you've considered**
None
**Additional context**
Generated by https://github.com/andygrove/no-need-to-panic
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