If hive table used default row format delimiter, hive doesn't return field.delim. As the result, tajo can't scan hive tables which used default row format delimiter. So, in this case, tajo must set field.delim to \001.
And current HCatalogStore just supports TextFile, it should supports RCFile.
At last, I found that HCatalogStore doesn't set compression and field.delim when it created tables. So,we should implement these.