If one runs DESCRIBE EXTENDED command on any hive table the result presents totalSize and rawDataSize values near the end of the output.
What do these fields mean?
Ex:
hive > DESCRIBE EXTENDED <TableName>
Output Results:
Table(tableName:TablenameXXXXX, dbName:XXxXXX,
.......... .......................
numRows=116429472, totalSize=3835205544, rawDataSize=35040221600})