Contains a row for each object that is a primary key or unique constraint. Includes sys.objects.type PK and UQ.
|Column name||Data type||Description|
|<Columns inherited from sys.objects>||For a list of columns that this view inherits, see sys.objects (Transact-SQL).|
|unique_index_id||int||ID of the corresponding unique index in the parent object that was created to enforce this constraint.|
|is_system_named||bit||1 = Name was generated by system.
0 = Name was supplied by the user.
The visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.