How to name the entity group assosiated as original and copied ?
I'm designing a library.
It stores a file assosiating with some DB entity.
And the file and entity have a method "revisionUp" and then the copy of the file and entity is created.
The original one has "revision 1" and copied one has "revision 2".

Then, What should I name the ID that indicates the entity-group assosiated as original and copied ?

If you have some good idea, please tell me!
How to name the entity group assosiated as original and copied ?
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I'm designing a library.
It stores a file assosiating with some DB entity.
And the file and entity have a method "revisionUp" and then the copy of the file and entity is created.
The original one has "revision 1" and copied one has "revision 2".

Then, What should I name the ID that indicates the entity-group assosiated as original and copied ?

If you have some good idea, please tell me!