The current baseline is modeled support the following shared scans:
- Object for the latest DR only
- Object_extra for the latest and latest-1 DRs
- Source for the latest DR only
- ForcedSource for the latest DR only
Note that with the exception of Object_extra, we are planning to support efficient full-table-type access to the latest data release only. Short non-scan queries will be supported for any data release available on disk (per baseline, that'd be latest and latest -1).
I'm soliciting comments and reactions. Changing the model and providing access to older data release is not a technical problem, it is only a question of $ (how much hardware to purchase).