August 2019
Intermediate to advanced
560 pages
13h 41m
English
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Refreshing mapping changes for static mapping
In Chapter 3, Document APIs, we introduced the Update by Query API for documents and also for static mappings. If static mapping is used, any fields not specified in the mappings will not be indexed and searchable; however, they are stored in _source. If we need to search for a non-mapping field later, we only need to update the static mappings to make the indexed documents take effect of the changes. No document reindexing step is required. Assume that the original mappings for our sample documents do not have the exchange field, that the document has been indexed, and that we now want it to be searchable:
- First, we need to update the mapping, as shown in the following screenshot:
- The next ...
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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.
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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.