elasticsearch/elasticsearch — pull request #3153 by pecke01 (2013-06-10 21:39:40+00:00)
Title: Upsert shouldn't require an extra document

When posting a document for Update should be possible to tell the command to do an upsert of the same document. Something like upsert_doc: true. Reduces the amount of data sent over the wire significantly. This scenario happens a lot when having several data stores for the same document in the index.