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Convergence of Analytic View vs. Star Join?

Doing some research on various performance topics I came across the fact that Analytic views are now shown as star joins in revisions >= SPS9.

They seem almost identical with the following differences

- Analytic views only allow attribute views in the Star Join

- Star Join CV's only allow DIMENSION or '' blank data category calculation views in the Star Join

- Advanced View properties are different in each

So to me, the concept is the same; work up a "fact" table, whether physically or virtually, then add dimensional attributes with a Star Join. Using a N:1 Cardinality explicitly allows pruning off of joins defined as left outer or referential, which should be the goal.

Additionally, the VizPlan indicates a much different execution for each (as expected); whereas the analytic view executes solely in OLAP and the calculation views is completely in the SQL/JE regardless of the "Execute In" property. The CV I used was a simple one, otherwise some of the CE operators may have been invoked.

Is there going to be a convergence of this or will the two modeling artifacts remain separate? Any specific technical advantages in either case? From what I know from a few presentations is that the Analytic View will be migrating to this Star Join, but not 100% certain.

Star Join Calculation View

Analytic View

Happy HANA,


Former Member

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