The FdoFunctionCategoryType enumeration lists all types an function may be classified to.

()

Enumerator:
FunctionCategoryType_Aggregate  Represents the identifier used to categorize aggregate functions.
FunctionCategoryType_Conversion  Represents the identifier used to categorize conversion functions.
FunctionCategoryType_Custom  Represents the identifier used to categorize custom functions.
FunctionCategoryType_Date  Represents the identifier used to categorize date functions.
FunctionCategoryType_Geometry  Represents the identifier used to categorize geometry functions.
FunctionCategoryType_Math  Represents the identifier used to categorize mathematic functions.
FunctionCategoryType_Numeric  Represents the identifier used to categorize numeric functions.
FunctionCategoryType_String  Represents the identifier used to categorize string functions.
FunctionCategoryType_Unspecified  Represents the identifier used to categorize unspecified functions.