Ep 11: Too many small files, Here’s how Delta Lake fixes this with OPTIMIZE and compaction
Автор: Raman the Data Alchemist
Загружено: 2026-01-15
Просмотров: 17
In this episode of Daily Data Engineering Shorts, we explain how Delta Lake improves query performance using OPTIMIZE and file compaction.
Modern data pipelines often create many small files due to streaming, frequent writes, and updates. While this works well for ingestion, it severely impacts read performance over time.
In this short, you’ll learn:
Why small files hurt query performance
What OPTIMIZE does in Delta Lake
How file compaction works safely
Why performance improves without breaking correctness
This episode is useful for:
Data engineers
Analytics engineers
Cloud and platform teams
Anyone working with large Delta tables
📌 Part of the Daily Data Engineering Shorts playlist covering Delta Lake internals and lakehouse fundamentals.
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