[jira] [Created] (ARROW-10970) [Rust][DataFusion] Implement Value(Null)

[Mike Seddon (Jira)]

Mike Seddon created ARROW-10970:
-----------------------------------

             Summary: [Rust][DataFusion] Implement Value(Null)
                 Key: ARROW-10970
                 URL: https://issues.apache.org/jira/browse/ARROW-10970
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Rust - DataFusion
            Reporter: Mike Seddon


We need to add support for the NULL value. 

For example:

```sql
SELECT char_length(NULL) AS char_length_null
```



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