August 2019
Intermediate to advanced
560 pages
13h 41m
English
Content preview from Advanced Elasticsearch 7.0
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The field capabilities API
If you don't know much about the indexed fields, you can use this _field_caps API to familiarize yourself with the features of using the fields. Five topics are reported, including searchable, aggregatable, indices, non_searchable_indices, and non_aggregatable_indices. The topics names are self-explanatory, except the fact that the term indices refers to the name of the indices that own the field. Now, let's take a look at the fund name and category fields of the ETF documents. In the following screenshot, you can see that the fund_name field is searchable, but not aggregateable, because it is in the text datatype.
On the other hand, the category field is searchable and aggregatable because it is in the keyword ...
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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.