SQL Server v.Next ("Denali") : How a columnstore index is not like a normal index

Posted by AaronBertrand on SQL Blog See other posts from SQL Blog or by AaronBertrand
Published on Mon, 28 Feb 2011 17:34:00 GMT Indexed on 2011/02/28 23:31 UTC
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Apollo

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column store

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Columnstore index

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CTP1

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Denali

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SQL 11

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SQL Server 11

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SQL Server 2011

At the end of my Denali presentation at SQL Saturday #65 in Vancouver, a member of the audience asked, "What makes a columnstore index different from a regular nonclustered index?" At the end of a busy day, I was at a loss for an answer, and I'll explain why. First, I'll briefly explain the basic, core, high-level functionality of a columnstore index (you can read a lot more details in this white paper ). Basically, instead of storing index data together on a page, it divvies up the data from each...(read more)

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