Mastering Hash Joins In Clickhouse
ChistaDATA

ClickHouse JOIN: Mastering Hash Joins

Introduction In ClickHouse, Hash Joins are a powerful method for combining data from multiple tables efficiently. They fall under the category of “merge joins,” where ClickHouse takes advantage of sorted data structures to speed up the joining […]

Overview of Vectorized Query Processing in ClickHouse
ChistaDATA

Vectorized Query Processing for ClickHouse Performance

Introduction: Vectorized query computing is a crucial optimization technique that significantly influences the performance of real-time analytics solutions. It transforms the way queries are processed by simultaneously operating on multiple data elements, maximizing hardware resources […]

Data Compression in ClickHouse vs Cassandra
ChistaDATA

Data Compression in ClickHouse vs Cassandra

Introduction ClickHouse and Cassandra: two different databases optimized for different use cases. ClickHouse is a columnar database designed for analytical queries, while Cassandra is a NoSQL database designed for write-heavy workloads and scalability. Because of these fundamental differences in design and use […]