/*\ ***** ***** ***** ***** ***** Public Methods ***** ***** ***** ***** ***** \*/
public async Task <IList <string> > DeleteAsync <T>(IRavenQueryable <T> query, bool allowStale)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
var operation = await _commands.DeleteByIndexAsync(GetIndexName(query), GetIndexQuery(query), new BulkOperationOptions { AllowStale = allowStale });
var token = await operation.WaitForCompletionAsync();
var results = token.Value <RavenJArray>();
var ids = from document in results.Values <RavenJObject>()
where document.ContainsKey("Document")
select document["Document"].Value <string>();
return(ids.Distinct()
.ToList());
}