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Poor performance when selecting only from dimensions.

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Hi guys,

 

We are using BO Universes on top of HANA Models which are Calculation Views with Star Joins.

BO Universes have default behavior of trying to create at list of values for columns, by creating a select distinct for the column.

 

Like this

SELECT DISTINCT "SUPPLIER_ID"
FROM "_SYS_BIC"."bi.PROC/DH_PROCESSER_CV"

SUPPLIER_ID is a column in the SUPPLIER_CVD dimension which is referential joined to the FACT part.

 

My problem is that the above query causes the model to Join the entire model, instead of just looking at the dimension.

 

 

 

I have quite a lot of data, so each time a user requests a list of values like this it causes the server to use 100% CPU for 0,5 to 10 min.

Making the system inoperable.

 

Has anyone found out a way to make the model query the dimension instead of the entire model ?

Hope you can help.

 

Best Regards,

Rasmus

 

Note: We are on SP11


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