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SELECT COUNT(*) is Slow, Estimate it Instead (with Example in Node JS and Postgres)

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About SELECT COUNT(*) is Slow, Estimate it Instead (with Example in Node JS and Postgres)

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Get my database course https://database.husseinnasser.com In this video, I'll show how we can use the database query planner to estimate the count with the table statistics and gain enormous performance. I'm going to use Postgres as my database and express node js as my backend. Source Code https://github.com/hnasr/javascript_playground/tree/master/estimated_count Get my database course https://database.husseinnasser.com Become a Member on YouTube https://www.youtube.com/channel/UC_ML5xP23TOWKUcc-oAE_Eg/join 🧑‍🏫 Courses I Teach https://husseinnasser.com/courses 🏭 Backend Engineering Videos in Order https://backend.husseinnasser.com 💾 Database Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2 🎙️Listen to the Backend Engineering Podcast https://husseinnasser.com/podcast Gears and tools used on the Channel (affiliates) 🖼️ Slides and Thumbnail Design Canva https://partner.canva.com/c/2766475/647168/10068 🎙️ Mic Gear Shure SM7B Cardioid Dynamic Microphone https://amzn.to/3o1NiBi Cloudlifter https://amzn.to/2RAeyLo XLR cables https://amzn.to/3tvMJRu Focusrite Audio Interface https://amzn.to/3f2vjGY 📷 Camera Gear Canon M50 Mark II https://amzn.to/3o2ed0c Micro HDMI to HDMI  https://amzn.to/3uwCxK3 Video capture card https://amzn.to/3f34pyD AC Wall for constant power https://amzn.to/3eueoxP Stay Awesome, Hussein

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