milenkovicm commented on issue #1375:
URL: 
https://github.com/apache/datafusion-ballista/issues/1375#issuecomment-3767270050

   I'm not sure we should share them between executors, it would get just too 
complex.
   
   perhaps if we focus:
   
   - could we use them per partition ?
   - could we push them to shuffle reader to remove unneeded data from shuffle ?
   - could we push them across to flight server to remove unneeded data before 
transport (in case of non block transport) 
   
   we can drop this task if it does not make any sense and focus on something 
else, please do not spend too much time its just investigation 
   


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