Quick question, is there any performance difference between updating an existing record vice just reinserting into an index once the index has been deleted to clean out all records? Right now when we want to do a refresh, we are blowing away the index and just pushing all the records back in because we are allowing Elasticsearch to automatically generate the IDs. If we actually assigned meaningful IDs to our records and used those as part of the insert, would it be much faster to just push all the records back in as updates? I know we are not using the best methodology for getting our records in and we will fix that, but I am more curious about any performance difference between an update and reinsert given an update in Elasticsearch is actually a complete reinsertion of the record anyways.  Any thoughts would be appreciated. Thanks.