Hi Harish,
I am quite curious to know how did you manage to define SQL data type of ST_POINT which is of GEOMETRY column store data type.
So far, no such data type has been defined at http://help.sap.com/hana/html/_csql_data_types.html
It is possible for you to create another table without LOCATION and try building your view. I am not sure of the ST_POINT data type is supported currently.
Regards,
Ravi