[IndexedCAS - PART3] Add least_recent_digests method and implementation
Description
Part 3 of the Indexed CAS changes. This adds the least_recent_digests
method to the IndexABC
, which allows a caller to iterate through all blobs in the index in timestamp order.
Old discussion here: !231 (closed)
Changes proposed in this merge request:
- Add
least_recent_digests
toIndexABC
. - Add implementation to SQL, using window functions (see comments for details)
- Add tests
This merge request, when merged, will address issue/bug:
Edited by Rohit Kothur