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Materialized Views
This learning module covers ClickHouse materialized views, one of the three essential concepts developers need to know when working with ClickHouse. Materialized views are continuous streaming results of queries saved as new data sources, enabling preprocessing at insert time to reduce latency, cost per query, and significantly improve API endpoint performance.
Chapter 42
Optimizing a Project with Materialized Views
Video lesson Reading materials
Optimizing a Project with Materialized ViewsWhat you'll learn
- What Materialized Views Are: Continuous streaming results of queries saved as new data sources
- How They Work: Insert triggers that transform data at insert time using transformation pipes
- Use Cases: Data transformation (ELT), aggregation for faster queries, and filtering/routing data
- Best Practices: When to use materialized views vs projections, expert advice for production systems
- Optimization: How to optimize projects using materialized views and avoid common pitfalls
Learn More
- Materialized Views API - Materialized view documentation
- AggregatingMergeTree Engine - Pre-aggregation engine