sigmod commented on pull request #35552:
URL: https://github.com/apache/spark/pull/35552#issuecomment-1043634678


   > As it was removed and renamed before, do we have any place that needs to 
use HashClusteredDistribution now?
   >  HashPartitioning with subset of grouping keys satisfying 
ClusteredDistribution, can be a tradeoff. 
   
   Since ClusteredDistribution is not strictly better than 
HashClusteredDistribution for all queries and vice versa, I think we should at 
least have a config for sending HashClusteredDistribution down as a 
distribution requirement, so that users can toggle the config for their queries 
when using ClusteredDistribution is worse than HashClusteredDistribution. 
   


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