February 2017
Intermediate to advanced
696 pages
12h 24m
English
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Using a boolean query
Most people using a search engine have at sometime used the syntax with minus (-) and plus (+) to include or exclude query terms. The Boolean query allows the user to programmatically define queries to include, exclude, optionally include (should), or filter in the query.
This kind of query is one of the most important ones because it allows the user to aggregate a lot of simple queries/filters that we will see in this chapter to build a big complex one.
Two main concepts are important in searches: query and filter. The query means that the matched results are scored using an internal Lucene scoring algorithm; for the filter, the results are matched without scoring. Because the filter doesn't need to compute the score, it is ...
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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.