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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/11/27 02:49:57 UTC

[GitHub] [arrow-datafusion] liukun4515 commented on issue #4363: Should not convert a normal non-inner join to Cross Join when there are non-equal Join conditions

liukun4515 commented on issue #4363:
URL: https://github.com/apache/arrow-datafusion/issues/4363#issuecomment-1328158438

   > I think it is also possible to extend the HashJoin implementation with the new semantics rather than adding an entirely new physical join implementation
   
   hash join can just support equal condition. If there is no the equal condition, we can't use the hash join.
   
   If the condition is ` on left_table.column1 > 10` which can't be used for hash.
   


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