March 2019
Beginner to intermediate
778 pages
34h 20m
English
Content preview from Building Google Cloud Platform Solutions
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Composite indexes
In order to support more complex queries, Datastore allows users to define composite indexes. Composite indexes are made from a combination of entity properties, resulting in something Bigtable can retrieve with a single index range scan. This makes it possible to perform the following additional queries:
- Inequality filters on a single property and equality filters on others
- Multiple sort orders
- Combinations of filters and sort orders
- Combinations of ancestor and inequality filters
Composite indexes are defined using a configuration file, index.yaml. For our Employee entities, if we need to find all employees with the title Engineer and a name alphabetized after Bill King, we may wish to execute the following statement: ...
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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.