aokolnychyi opened a new pull request #2362:
URL: https://github.com/apache/iceberg/pull/2362


   This WIP PR is an attempt to pass around `Table` object instead of 
individual things like spec, sort order, etc.
   
   Originally, we used to separately pass `FileIO`, `LocationProvider`, 
properties as our `Table` objects were not serializable. We have to modify a 
lot of places each time we need add one more item to pass (e.g. sort order). 
That’s why passing `Table` instances to executors should simplify the 
configuration and make APIs easier.
   
   Since recently, `BaseTable` is serializable but the current way is not 
sufficient for two reasons:
   - We don’t handle Kryo serialization.
   - It is not a good idea to read the metadata file from each executor.
   


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