brancz opened a new issue, #18516:
URL: https://github.com/apache/datafusion/issues/18516
### Describe the bug
I am working with data that is REE encoded, and ran a SQL statement like:
```
SELECT * WHERE ree_encoded_column_name = 'test'
```
Which resulted in the following error:
```
Something went wrong: rpc error: code = Internal desc = Failed to execute
stream: type_coercion%0Acaused by%0AError during planning: Cannot infer common
argument type for comparison operation RunEndEncoded(Field { name: "run_ends",
data_type: Int32, nullable: false, dict_id: 0, dict_is_ordered: false,
metadata: {} }, Field { name: "values", data_type: Dictionary(UInt32, Utf8),
nullable: true, dict_id: 1, dict_is_ordered: false, metadata: {} }) = Utf8
```
The column is an REE encoded dictionary of strings.
I'm not 100% sure this issue belongs in datafusion or arrow, feel free to
let me know if arrow is more appropriate and I can move it.
### To Reproduce
Create a table provider that emits records with REE arrays and run a filter
on it.
### Expected behavior
It filters/coerces as expected.
### Additional context
@vegarsti @alamb
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