maxburke opened a new issue, #23031:
URL: https://github.com/apache/datafusion/issues/23031

   ### Is your feature request related to a problem or challenge?
   
   Many of the joins (such as HashJoin) concatenate input record batches into a 
single record batch for ease of index accounting, but this causes huge memory 
pressure issues when the datasets are large. 
   
   ### Describe the solution you'd like
   
   If the joins were able to preserve the original record batches without 
concatenation, this would help alleviate OOMs on large queries.
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Additional context
   
   _No response_


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