Скачать или смотреть Lets see How Delete works in Databricks

Deleting rows in Databricks Delta Tables isn’t as simple as it seems. When you run a DELETE command, the data doesn’t immediately vanish — instead, Databricks uses deletion vectors to mark rows as hidden while keeping the original files intact. This design keeps queries fast ⚡ and also enables powerful features like time travel, so you can still access older versions of your table.

But here’s the catch — unless you run a VACUUM command, the “deleted” data is still sitting in storage. In this video, I explain step-by-step what happens under the hood when you delete data in Delta Tables, why it matters for performance and storage, and how to clean things up the right way. 🚀

If you’re preparing for data engineering interviews, working with Databricks, or just curious about how modern data platforms handle deletes, this video will give you a clear and practical explanation.

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