hadoop - What does the following fields: 'totalSize' and 'rawDataSize' mean in DESCRIBE EXTENDED query output in hive? -

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if 1 runs describe extended command on hive table result presents totalsize , rawdatasize values near end of output.

what these fields mean?

ex:

hive > describe extended <tablename>  output results:  table(tablename:tablenamexxxxx, dbname:xxxxxx, ..........       ....................... numrows=116429472, totalsize=3835205544, rawdatasize=35040221600})

rawdatasize size of original data set, totalsize amount of storage takes. applicable orc file format, compresses data totalsize lesser rawdatasize.


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