What this mean *NAST ?

Hi everyone ;

Table declaretion in a abap

Tables : lips, likp , nast.

But I dont understand this decleration * nast.

Tables: lips,

likp,

nast,

*nast.

What does mean *nast , whats diffrent.

Thanks for help.

Regards.

Edited by: Irfan MATAK on Dec 12, 2008 12:08 PM