yahoNanJing opened a new issue #1702:
URL: https://github.com/apache/arrow-datafusion/issues/1702


   **Is your feature request related to a problem or challenge? Please describe 
what you are trying to do.**
   <!-- A clear and concise description of what the problem is. Ex. I'm always 
frustrated when [...] 
   (This section helps Arrow developers understand the context and *why* for 
this feature, in addition to  the *what*) -->
   
   After introducing the object store API, to support to access remote object 
store for Ballista executors, there are still some gap. For example, as #349 
mentioned, it's not able to get file metadata for remote object store.
   
   **Describe the solution you'd like**
   <!-- A clear and concise description of what you want to happen. -->
   
   Our workaround is to make the file path self described. For example, a local 
file path should be file://tmp/..., a hdfs file path should 
hdfs://localhost:xxx:/tmp/...
   


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