[Rails-core] Is :primary on Column meant to indicate if the column is the primary key?

[Steve Eichert]

I've been working on the SQL Server adapter recently and have a question about the intended use of the :primary attribute on the Column class.  Is it meant to hold a boolean indicating if the column is the primary key?  After reviewing the various adapters it doesn't appear that any of them use the primary attribute.  I'd like to make use of the attribute so that when I dump a SQL Server database using db_schema_dump I can get the :primary_key option on the create_table set appropriately.  The database I'm dumping is a non-standard Rails db (no "id" column for the primary key).  Could someone confirm that my intended use of the primary attribute on Column is appropriate?

Thanks,
Steve

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