Does the harvester support selective or incremental harvesting?
Yes. When an automatic harvest is conducted at regular intervals, the harvester checks if the data provider supports deleted records. If deletions are supported, a selective harvest is performed by requesting and synchronizing only those records that have been added, modified or deleted since the previous harvest. If deletions are not supported, a full harvest is performed by deleting all previously harvested records and harvesting all records from scratch. Similarly when a manual harvest is performed, clicking ‘New’ performs a selective harvest while clicking ‘All’ deletes all previously harvested files and performs a full harvest from scratch.