gszadovszky commented on PR #1026:
URL: https://github.com/apache/parquet-mr/pull/1026#issuecomment-1431102177

   @wgtmac, by supporting multiple files to rewrite them into one we will end 
up with the same number of row-groups, right? Therefore, this tool is not ment 
to be used to solve the "small files problem". I am highlighting this because 
we've had issues with users misunderstanding the purpose of features like this. 
Maybe, we should add some notes about it to the help of parquet-cli.


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