Issue deletes in chunks instead of individually using the DELETE x IN (list_of_ids) (#32)
Issue deletes in chunks instead of individually using the DELETE x IN (list_of_ids) (#32)

* Issue deletes in chunks instead of individually using the DELETE ... IN (list_of_ids)

* Move constant from function scope to class scope

* Move constant from class scope to file scope

deregtd/NoSQLProvider,deregtd/NoSQLProvider