[GitHub] [arrow-datafusion] zemelLeong opened a new issue #2090: perhaps two different versions of crate `arrow` are being used?

Fri, 25 Mar 2022 01:29:22 -0700 


zemelLeong opened a new issue #2090:
URL: https://github.com/apache/arrow-datafusion/issues/2090


   I use [connectorx](https://github.com/sfu-db/connector-x) query data to 
datafusion got this error.
   ```markdown
   mismatched types
   expected reference `&Vec<datafusion::arrow::record_batch::RecordBatch>`
      found reference `&Vec<arrow::record_batch::RecordBatch>`
   perhaps two different versions of crate `arrow` are being 
used?rustc[E0308](https://doc.rust-lang.org/error-index.html#E0308)
   ```
   ```rust
       debug!("loading database table data...");
       let mut destination = ArrowDestination::new();
       let source = MySQLSource::<BinaryProtocol>::new(t.get_uri_str(), 
2).unwrap();
       let queries = &[format!("SELECT * FROM {}", t.name)];
       let dispatcher = Dispatcher::<
           MySQLSource<BinaryProtocol>,
           ArrowDestination,
           MySQLArrowTransport<BinaryProtocol>,
       >::new(source, &mut destination, queries, None);
       dispatcher.run().unwrap();
       let data: &Vec<RecordBatch> = &destination.arrow().unwrap();
   ```
   
![image](https://user-images.githubusercontent.com/26835087/160083299-f49f7a3c-0e6a-4622-8334-25a2030dab4d.png)
   
   Is there any way to fix this?


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