Why was the extended star schema scrapped?

Hi,
BW on HANA takes out the dimension tables and gives us back the original star schema structure.
Now my questions are
- How did the original extended star schema help the old BW on oracle or DB2 systems? I mean what was the need for such a design
- If it offered some kind of optimization .. then why was it scrapped in BW on HANA? Couldn't it have added on to the performance that HANA DB brought?
Regards,
Sam

Can anyone please explain.. ? Krishna Tangudu Thomas Jung Shyam Uthaman .. Any thoughts?

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    Right now I'm trying to implement SAP HR Infotypes into SAP BW. I try to combine 10 infotypes (all Personal Administration) into one infocube. The confusing one is that when I see my dimension, there something strange (please see below)
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  • Extended Star Schema doubt

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    Sid Table -- master data values.
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    Dimension table:
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  • Wat is the use of sid in extended star schema rather than linking masterdat

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    hi,
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  • Need help with an extended star schema.

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    PDS03,COMPUTER
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    PDS05,ACCESSORIES
    PDS06,ACCESSORIES
    PDS07,ACCESSORIES
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         Prod_Desc     Medium Text     Represents the product description
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         Language     2     Represents the language descriptor
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