October 2019
Beginner
186 pages
5h 39m
English
Content preview from Elasticsearch 7 Quick Start Guide
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Multi-document APIs
Multi-document APIs are handled in a similar way to single-document APIs. Updating and deleting multi-documents uses the same parameters.
The multi-document API retrieves multiple documents using an index, type, or ID. Using _mget specifies the documents to be selected:
GET /test_index/_doc/_mget{ "ids" : ["1", "2"]}
After executing the preceding command, we can list the documents with the IDs of 1 and 2.
The update by query API updates the documents in the index. The source is not changed:
POST node_name/_update_by_query
This takes a snapshot of the index as it starts, and will keep track of the changes to the document. It will return a conflict response if the document changes between the snapshot and the process of ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.