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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/06/27 15:44:46 UTC
[GitHub] [arrow-datafusion] Dandandan commented on pull request #620: Optimize count(*) with table statistics
Dandandan commented on pull request #620:
URL: https://github.com/apache/arrow-datafusion/pull/620#issuecomment-869183633
After
* Optimizing out `count(*)` even when we have multiple aggregation expressions (e.g sum+ count).
* also supporting min/max statistics
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