As I understand there are two solution of my problem:
- Moving of zero point
POINT(0 0)
to far north pointPOINT(0 90)
. This solution is not ideal, but working and does not require change of SQL Server version. - Changing SQL Server version to 110 (in this version bug with NULL is fixed) by executing of this script: ALTER DATABASE database_name SET COMPATIBILITY_LEVEL = 110