[I] Support `||` for `StringViewArray` [arrow-rs]

["alamb (via GitHub)" <gi...@apache.org>]

alamb opened a new issue, #6175:
URL: https://github.com/apache/arrow-rs/issues/6175

   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   
   ```shell
   datafusion-cli
   ```
   
   Then run 
   ```sql
   DataFusion CLI v40.0.0
   > create table foo as values ('value1', arrow_cast('one', 'Utf8View')), ('value1', arrow_cast('two', 'Utf8View'));
   0 row(s) fetched.
   > select column2||'ff' from foo;
   Internal error: Data type Utf8View not supported for binary operation 'concat_elements' on string arrays.
   This was likely caused by a bug in DataFusion's code and we would welcome that you file an bug report in our issue tracker
   ```
   
   **Describe the solution you'd like**
   I would like the query to work 
   
   **Describe alternatives you've considered**
    We can probably get the query to work by fixing the coercion logic to coerce to `Utf8`, but that will be less efficient than implementing native StringView support for `concat` 
   
   
   The coercion is here: https://github.com/apache/datafusion/blob/6e2ff2955d96cacba905d24993353c7e5fe0cf93/datafusion/expr/src/type_coercion/binary.rs#L116-L122
   
   The physical expression implementation starts here
   
   https://github.com/apache/datafusion/blob/6e2ff2955d96cacba905d24993353c7e5fe0cf93/datafusion/physical-expr/src/expressions/binary.rs#L661
   
   **Additional context**
   <!--
   Add any other context or screenshots about the feature request here.
   -->
   


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Re: [I] Support string concat `||` for `StringViewArray` [arrow-rs]

["alamb (via GitHub)" <gi...@apache.org>]

alamb commented on issue #6175:
URL: https://github.com/apache/arrow-rs/issues/6175#issuecomment-2263397233

   If anyone wants to work on this, I would suggest starting with a PR that has some tests and does coercsion (which will make the query run) and then we can implement optimziation later


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