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Microsoft Idea

    BI in SQL vNext

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    Add Unique and Foreign Key Constraint Support to Clustered Columnstore Indexes

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    Jakub Kaczanowski's profile image

    Jakub Kaczanowski on 11 Apr 2015 11:34:37

    Posted on connect but just putting here as well: https://connect.microsoft.com/SQLServer/feedback/details/1031466/constraints-on-clustered-column-store-indexes

    Currently clustered columnstore indexed tables only support not null constraints. Unique and foreign key (even unenforced - just for metadata purposes) are required for these to be considered "rea" relational tables. I don't want to have to manually code in a unique constraint check every time I insert or update a CCI table.