Hive table is creating more empty files

Hi,

I have created a hive table from an existing hive table which has huge no of records (filesize is 509 MB and data around 3 million recs). But i have created the new table with a single record from the huge existing table. Table got created with a single record as expected but when i checked for the file in apps/hive/warehouse and table has 32 files and 31 files are zero byte files and only one file has the record whcih is avaialbe in table. Could someone explain why it is creating the zero byte files. Is this correct can this be avoided if so please let me know.

Thanx
Siva