How do I optimize ActiveRecord queries in Ruby on Rails?
An example of an AI chatbot conversation about optimizing ActiveRecord queries in Ruby on Rails.
How do I optimize ActiveRecord queries in Ruby on Rails?
To optimize ActiveRecord queries, you can use methods like select, includes, and joins to reduce the amount of data loaded.
Can you explain how includes works?
Sure! The includes method is used to eager load associations, which helps to avoid N+1 query problems by loading associated records in a single query.
What about using pluck instead of select?
Using pluck retrieves specific fields directly from the database, which can be more efficient than loading entire objects with select.
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