alamb opened a new issue #128:
URL: https://github.com/apache/arrow-datafusion/issues/128


   *Note*: migrated from original JIRA: 
https://issues.apache.org/jira/browse/ARROW-10964
   
   Once [https://github.com/apache/arrow/pull/8961] is merged, we have an 
optimization for a JOIN that operates on two tables.
   
   The next step is to extend this optimization to work with nested joins, and 
this is not trivial. See discussion in 
[https://github.com/apache/arrow/pull/8961] for context.
   
    


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