(Based on a discussion in BagNeedScenarios)

-------

[context to be provided]

But most existing RDBMS do this already with an internal row ID. It's only when you need to cross-reference (Join) changing tables do you need a more explicit key. You are adding another step that existing RDBMS '''don't automatically need'''.

''Please provide that context.  I've no idea what this is about.''

{For now, search for this topic in the above topic if you don't wish to wait for the cleanup.}