[IndexedCAS - PART4] Add bulk operations
Description
Part 4 of the Indexed CAS changes -- adding implementations for missing_blobs, bulk_read_blobs, and bulk_update_blobs, overriding the default behavior which is inefficient for a SQL implementation. These are the primary operations that CAS clients will be using.
Old discussion here: !231 (closed)
Changes proposed in this merge request:
- Add implementation for the above three methods. The implementations make use of the SQLAlchemy core because the ORM is not suitable for bulk inserts/updates.
- Add tests
This merge request, when merged, will address issue/bug:
Edited by Rohit Kothur