Consider the following scenario:
- You have a Microsoft SQL Server 2012 Analysis Services (SSAS 2012) or Microsoft SQL Server 2008 R2 Analysis Services (SSAS 2008 R2) database that has multiple data sources.
- You have a Multidimensional Expressions (MDX) query that contains some filters.
- You run the MDX query against a Relational OLAP (ROLAP) partition. The ROLAP partition and the dimension that is referenced by the filters come from different data sources
In this scenario, an incorrect result may be returned or an access violation may occur.