Atatus Blog - For DevOps Engineers, Developers and Server Admins.

Understanding Murmur Hashing: When and Why to Use

Understanding Murmur Hashing: When and Why to Use

MurmurHash is a fast and efficient non-cryptographic hashing algorithm. Learn when to use it, how it differs from other hashing techniques, and see real-world examples of its applications in hash tables, Bloom filters, and distributed systems.
Understanding PostgreSQL EXPLAIN: A Guide to Query Optimization

Understanding PostgreSQL EXPLAIN: A Guide to Query Optimization

Discover how to use PostgreSQL's EXPLAIN command to analyze query execution plans, interpret costs, identify performance bottlenecks, and optimize queries effectively. This guide includes PostgreSQL EXPLAIN examples, practical tips, and strategies for improving database performance.
WHERE vs PREWHERE in ClickHouse

WHERE vs PREWHERE in ClickHouse

Discover the key differences between WHERE and PREWHERE clauses in ClickHouse. Learn how and when to use PREWHERE to improve query performance. Explore practical examples, performance comparisons, and best practices to optimize your ClickHouse queries

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