SSAS-Info.com - Microsoft SQL Server Analysis Services (SSAS) 2005/2008 resource hub
SSAS Articles Parent-child Cube structure optimization for MDX query performance in Analysis Services 2005 SP2: Tips for Parent Child Hierarchies usage
 
Cube structure optimization for MDX query performance in Analysis Services 2005 SP2: Tips for Parent Child Hierarchies usage
User Rating: / 3
PoorBest 
Written by Ajit Singh   
Thursday, 15 May 2008 21:46

Note: The below findings have been found on the PC hierarchies. The same may or may not be applicable to level based hierarchies since I have not tested them. I need to convert the same PC hierarchies to level based ones and then retest to find out if the similar issues exists with them too.

The bottom line of this blog, Analysis Servies 2005 does not handle rollup operators and custom members on Parent Child hierarchies properly leading to significant MDX query performance bottlenecks.

Read more...