tustvold commented on issue #4533:
URL: 
https://github.com/apache/arrow-datafusion/issues/4533#issuecomment-1341361653

   > I need to fill a fake parameter for object_store_url,
   
   FWIW this is to support serialization of `FileScanConfig` to/from protobuf, 
which is important to Ballista.
   
   > One solution that comes to my mind is making FileOpener
   > There are some challenges with that solution, e.g. 
ParquetFileReaderFactory wants to own FileMeta when creating a reader
   
   Would it work to just inline the `ObjectStore` and not the `FileMeta`?


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