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Does setting a primary key constraint in a field obstruct the compression of a versioned geodatabase?

I read someone mentioning that the primary key in a versioned geo-database will cause problem while compressing the geo-database.

I have a cadastral database in ArcSDE 9.x (MS SQL Server 2008). I have a field parcel id which is the primary key.

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    It's not the compression that's impacted, but editing itself (if the PK is applied to the adds table). Still, primary keys are not recommended, especially if you don't have a thorough understanding of the versioned editing model. Note that SQL Server 2008 hasn't been supported for much of this decade, and ArcGIS 9.x is so old it's a different product (there was a huge data model change at 10.0). – Vince Jan 31 at 11:30

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