Popular Clickhouse Posts

Most Popular Clickhouse Articles

Lead Lookup System Design (case study)

A high-scale lead management system designed to store and retrieve contact information for 200M users. The system supports lookups by phone number, email address, and SSN to resolve associated user profiles.A typical request maps a single contact identifier to exactly one user. ReplacingMergeTreeis

Jan 12 2 case-study postgresql clickhouse

ClickHouse: what is it and what is it for?

ClickHouse is an open-source, column-oriented database management system designed for online analytical processing ( OLAP ).

Apr 06 1 clickhouse olap database

ClickHouse vs PostgreSQL: Real-World Query Performance at Billion-Row Scale

ClickHouse vs PostgreSQL: Real-World Query Performance at Billion-Row Scale

This benchmark comparesPostgreSQLandClickHouseusing identical data and queries to evaluate performance in a read-heavy analytical workload. Each query was executed once. Both PostgreSQL and ClickHouse were run with default configurations (no custom tuning). The goal of this article is to demonstrate

Apr 05 1 clickhouse postgresql database

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