ChistaDATA Performance Archives

ClickHouse Real-Time POS Analytics: Sub-Second Decisioning for QSR Enterprises

If you’ve spent any time working in QSR (Quick Service Restaurant) data infrastructure, you already know the problem. The need for ClickHouse real-time POS analytics has never been more urgent — millions of POS transactions […]

ClickHouse Performance Pitfalls: 7 Mistakes That Slow Down Your Queries and How to Fix Them

ChistaDATA Inc.

ClickHouse has earned a well-deserved reputation as one of the fastest analytical databases available today. Its columnar storage, vectorized query execution, and aggressive compression make it a natural choice for teams dealing with hundreds of […]

ColumnStore vs. Modern Data Warehousing

Shiv Iyer

ColumnStore vs. Modern Data Warehousing: Optimizing Real-Time Analytics Performance Introduction Real-time analytics has become the cornerstone of data-driven decision making, demanding storage architectures that can handle massive volumes while delivering sub-second query performance. This technical […]

Why ClickHouse is so fast — MergeTree read path and query execution design

Why ClickHouse Is So Fast: 7 Design Choices Behind Its Speed

ChistaDATA Inc.

ClickHouse Performance Engineering · Deep-Dive Internals Why ClickHouse Is So Fast: 7 Design Choices Behind Its Speed Why ClickHouse is so fast is not a matter of one trick, but because every layer of the […]

ClickHouse November 2023 Release – Version 23.11

ClickHouse November 2023 Release – v23.11

ChistaDATA Inc.

Introduction: ClickHouse Release Note Every new release includes new features, enhancements, and numerous bug fixes, and the ChistaDATA team always stays on top of the latest releases. On December 06, 2023, ClickHouse version 23.11 was […]

ClickHouse Release Notes – v23.10 (October 2023)

ClickHouse October 2023 Release – v23.10

ChistaDATA Inc.

Introduction Every new release includes new features, enhancements, and numerous bug fixes, and the ChistaDATA team always stays on top of the latest releases. On November 02, 2023, ClickHouse version 23.10 was released, and this […]

Hash Joins in ClickHouse: A Practical Guide

Shiv Iyer

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

Tuning ClickHouse for High-velocity Data Ingestion in Distributed Tables

ChistaDATA Inc.

Introduction In ClickHouse, which is an open-source columnar database management system, the parameters you’ve mentioned are related to the configuration of distributed tables and how data is handled within a distributed environment. A distributed table […]

🚀 Exciting Plans for MinervaDB Inc. and ChistaDATA Inc.! 🌟

Shiv Iyer

Empowering Data Management: The Vision for MinervaDB and ChistaDATA As the founder of MinervaDB Inc. and ChistaDATA Inc., I am thrilled to share our vision for the next two years. Our companies have been established […]

ClickHouse Installation: Cluster Setup and Configuration

ClickHouse Resource Safety: Implementing RAII and Destructors

Shiv Iyer

Introduction In ClickHouse’s C++ codebase, efficient resource management and preventing resource leaks are crucial for ensuring stable and high-performance data processing. C++ provides the powerful RAII (Resource Acquisition Is Initialization) idiom, which allows resources to […]

* Everything changes over time – Our blogs/posts and comments changes over time, That’s how it should be! Whatever we comment from ChistaDATA Inc. Teams (including Shiv Iyer) and other stakeholders or guest bloggers posted here are never permanent, These things worked for us. But, there is no guarantee they will work for you too, When using the recommendations from ChistaDATA or MinervaDB or MinervaSQL or any other online resources / Google, You must test the advice before applying them to your production systems, and always invest for a robust Database DR solution, Thank you for understanding.

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