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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/09/28 22:46:43 UTC

[GitHub] [arrow-datafusion] mateuszkj commented on pull request #3649: Cache collected file statistics

mateuszkj commented on PR #3649:
URL: https://github.com/apache/arrow-datafusion/pull/3649#issuecomment-1261539945

   JYI, collecting statistics is disabled when creating table from SQL (`CREATE EXTERNAL TABLE ..`), it's different behavior when using function `SessionContext.register_parquet(..)` where collecting statistics is enabled.
   
   https://github.com/apache/arrow-datafusion/blob/master/datafusion/core/src/execution/context.rs#L507 -> `collect_stat: false`
   
   https://github.com/apache/arrow-datafusion/blob/master/datafusion/core/src/execution/options.rs#L195 -> `collect_stat: true`
   
   I'm not sure if it's intended.


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