August 2019
Intermediate to advanced
560 pages
13h 41m
English
Content preview from Advanced Elasticsearch 7.0
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The query string keyword
There are two sub-types of query string keywords, query_string and simple_query_string.
They use different parsers to process the query string. The syntax of the parser is quite different. If the query string is not suitable for the grammar, the parser of query_string will throw an exception, while the parser of simple_query_string will discard the invalid part and continue the process. Both parsers will split the query string with the operators and then, for each group, it splits the field and its value:
- query_string query: The syntax of the query string is described in the following table. If no field is specified in the query string, the setting, index.query.default_field, is used:
| The reserved characters ... |
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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.