ClickHouse® Architecture Basics: Nodes, Shards, and Replicas
Learn the fundamentals of ClickHouse® architecture, including nodes, shards, and replicas. Understand how distributed clusters scale storage, improve performanc
June 12, 20269 min read
Tag: olap
Posts tagged "olap"
Basic Data Aggregation in ClickHouse®
Learn the fundamentals of data aggregation in ClickHouse®. Explore aggregate functions, GROUP BY, time-based aggregations, ROLLUP, CUBE, and performance optimiz
June 10, 20267 min read
Your First ClickHouse® Query: A Step-by-Step Tutorial
Learn how to write your first ClickHouse® query with this beginner-friendly step-by-step tutorial. Create tables, insert data, filter results, and perform aggre
June 5, 20265 min read
ClickHouse® vs PostgreSQL: When to Use Which?
ClickHouse® vs PostgreSQL - what's the real difference? Learn how each database works, when to use which, and its performance trade-offs.
June 4, 20268 min read
What Is Debezium? Using Change Data Capture to Offload Analytics to ClickHouse®
A beginner-friendly explanation of Debezium and Change Data Capture (CDC), and how to use them to move heavy analytical workloads off your operational database.
June 3, 20269 min read
When Should High-Cardinality Columns Come First in ClickHouse® ORDER BY?
Learn when high-cardinality columns improve ClickHouse® ORDER BY performance and how to choose correctly.
February 19, 20264 min read
Deep Dive into the Native JSON Data Type in ClickHouse®
A deep dive into ClickHouse®’s native JSON type: binary storage, lazy parsing, performance trade-offs, and real-world use cases.
January 27, 20266 min read
Why Modern Companies Need OLAP Systems Like ClickHouse®
Discover why today’s companies rely on OLAP systems like ClickHouse® for real-time analytics, faster queries, and scalable data processing.
December 3, 20255 min read