Applies To: SQL Server (starting with 2016)
An enumeration of the different hierarchy structure types allowed by the engine.
Assembly: Microsoft.AnalysisServices (in Microsoft.AnalysisServices.dll)
A hierarchy identified by the engine as Natural. An example of a natural hierarchy is a structure consisting of dates, where a given calendar year is the natural parent of a set of quarters, and a given quarter is the logical parent of a set of months, and a given month is the natural parent of a set of days.
The hierarchy is of an unknown kind.
Usually a user defined hierarchy that the engine was not able to classify as a natural hierarchy.