The space available property is not computed correctly

The Database.SpaceAvailable property is not computed correctly. The reason for this issue is that the input used in the calculation of this property, as seen in the source code, relies on a join operation between the sys.allocation_units and sys.partitions DMVs. However, this inner join is incompatible with columnstore indexes, as clearly documented in the official documentation. Consequently, the size is inaccurately computed for databases using columnstores. The solution is straightforward: remove this incompatible join operation from the calculation.

Comienza en src/Microsoft/SqlServer/Management/SqlEnum/PostProcessDatabaseInsideAttribs.cs, en el cálculo enlazado de Database.SpaceAvailable. Revisa cómo se combinan sys.allocation_units y sys.partitions y, a continuación, verifica el resultado para una base de datos que use índices columnstore. Se considera terminado cuando la propiedad informa del espacio disponible correcto sin la combinación incompatible.