SumIndexFields Property
Sets the SumIndexField Technology (SIFT) for the key, if applicable.
Applies To
Keys
Remarks
You can select up to 20 SumIndexFields for each key.
The fields must be of a numeric datatype (Decimal, Integer, BigInteger, or Duration).
Changing existing keys may affect the behavior of the application since other parts of your application may depend on the existence of certain keys.