Store value in HCatalog database.table.??column??

[Jan Kuhlmann]

Hi Team,

i'm trying to store a calculated value in an existing column of a table 
which already exist in HCatalog. 

At the moment, I'm using the following statement.

STORE alias INTO 'Database.Table' USING 
org.apache.hive.hcatalog.pig.HCatStorer();

But how do I define the column in which the value of alias should be 
stored?

I already tried to use database.table.column, but got an error. 

Any idea? 

Thanks in advanced for your help!

Jan