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Posted to github@arrow.apache.org by "Dandandan (via GitHub)" <gi...@apache.org> on 2023/04/10 14:31:44 UTC

[GitHub] [arrow-datafusion] Dandandan commented on issue #5944: Fuse grouped aggregate and filter operators for improved performance

Dandandan commented on issue #5944:
URL: https://github.com/apache/arrow-datafusion/issues/5944#issuecomment-1501890128

   One source of inefficiency (and should be relatively easy to change) is that currently we output the entire `RecordBatch`, including the columns that are needed to evaluate the filter, while throwing those columns away in the following `Projection`.
   
   See:
    See https://github.com/apache/arrow-datafusion/issues/5436


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