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What do you do when indexes aren’t enough?
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Take a guided tour through a query plan for a “simple” SQL query.
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Get more control over HTTP caching in Rails.
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Understand and implement Fastly caching in your Rails application.
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Learn how to implement HTTP conditional caching in Rails using fresh_when.
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Speed up your tests by telling Capybara WebKit not to hit external APIs.
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How can you plug complex, multi-model SQL queries into ActiveRecord models so that you can use them in your views?
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Take your queries to the next level with window functions.
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Content Distribution Networks (CDNs) such as Amazon CloudFront and
Fastly...
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Use SQL EXPLAIN to understand when and why indexes are used (or not).
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