andygrove opened a new pull request #8034: URL: https://github.com/apache/arrow/pull/8034
This PR adds the first physical optimization rule, to insert explicit MergeExec nodes into the physical plan when operators require a single partition of input (such as GlobalLimitExec, SortExec, HashAggregateExec in final mode). This removes the merging logic from the operators, making them more easily re-usable in different contexts (such as in a distributed query engine, which could provide its own planner and/or optimization rules). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
