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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/05/29 19:43:24 UTC

[GitHub] [arrow-datafusion] andygrove commented on pull request #2648: WIP: Support logical plan compilation

andygrove commented on PR #2648:
URL: https://github.com/apache/arrow-datafusion/pull/2648#issuecomment-1140512510

   Hi @waynexia and thanks for the contribution. I understand using the JIT to compile expression trees but I don't understand why we would want to compile a logical plan rather than leverage the JIT in the physical plan? Could you explain that some more? The logical plan has the concept of a join but we don't know whether that is a HashJoin, CrossJoin, or SortMergeJoin until we get to the physical plan so I don't see how we could compile anything from the logical plan for joins as one example.


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