Carbondata vs Parquet

Posted by Rana Faisal Munir on
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Carbondata-vs-Parquet-tp11922.html

Hi all,


I have a question about carbondata.


In Parquet, if we do projection and selection together, then minimum
read unit will be page instead of row group. However, if we do only
filter then minimum read unit will be Row Group instead of Page.

I assume that it is also similar in CarbonData. But my question is how
carbondata handles reading one record. Does it read whole page or
blocklet to read one record or it reads just one record from the disk.


Thank you


Regards

Faisal