My problem is that I sometimes need to delete massive (well above 10k) documents with same value for a certain field. Not a problem, _delete_by_query with a filter for that value works nice.
The problem is that in my current setting an update/index operation with external versioning lower to that of the_delete_by_query will still have higher internal versioning number. Thus, rather than letting _delete_by_query drop the doc it will fail.
If this is correct is there any plan to add support for external versioning to _delete_by_query?