Solution : https://service.sap.com/sap/support/notes/1620958 (SAP Service marketplace login required)
Key words : 
query agains sap hana database, sap hana database revision 10, sap hana database, hybrid data base, column strore type, 16 bytes solution restrict, character string type, max aggregation operation, -memory database, max operation
Related Notes : 
       
| 1523337 | SAP In-Memory Database 1.0: Central Note | 
| 1514967 | SAP HANA 1.0: Central Note |