Hi,
The ECC DATE format does not match with the DATE format of ANSI SQL 92(HANA uses these standards).
In HANA, you can use M_TIME_DIMENSION that includes SAPDATE (in varchar) and SQLDATE (in DATE) format. So the mapping can be done there.
You can also find the detailed discussion for this in the below link
http://scn.sap.com/thread/3373447
Hope it helps.
Regards,
Rashmi