Depending on how many `FixtureReportResult` docs there end up being this could become a memory problem. If there are going to be a lot then I would recommend loading all the doc ID's and deleting them in batches. You could use [iter_docs](https://github.com/dimagi/dimagi-utils/blob/master/dimagi/utils/couch/database.py#L50-50) and [CouchTransaction](https://github.com/dimagi/dimagi-utils/blob/master/dimagi/utils/couch/bulk.py#L8-8)