Started learning about elastic search today.
I am currently on the reindexing section of the guide: https://www.elastic.co/guide/en/elasticsearch/guide/current/reindex.html
and my questions are, after you are done reindexing the oldindex to the new index, what happens to the old index? I didnt quite get this part from reading the guide. Am guessing theres another step where you make a call to an api to delete the old index? or does the oldindex become some sort of an orphaned index in elasticsearch?