The storage format to use when writing data to Hive can now be configured via the hive.storage-format option in your Hive catalog properties file. Valid options are RCBINARY, RCTEXT, SEQUENCEFILE and TEXTFILE. The default format if the property is not set is RCBINARY.
formatが何種類かあるけど、これがどう違うのか良くワカラナイ
