The article discusses optimizing database queries in Django using defer(), only(), and exclude() methods to enhance performance. It introduces a sample real estate web app with Property and Location models, emphasizing the importance of efficient queries due to their potential to slow down the application. The author benchmarks the app's performance using Django Silk, a profiling tool that helps visualize HTTP requests and database queries. Initial benchmarks reveal that optimizing how data is fetched can significantly lower the query response times, improving overall speed and efficiency.
Database queries are usually the bottlenecks of most web apps. Understanding how to write efficient queries can help you significantly speed up your apps.
To minimize the amount of data fetched when working with Django, you can leverage the defer(), only(), and exclude() methods.
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