olap Archives | ChistaDATA Inc.

ClickHouse® ReplacingMergeTree Explained: The Good, The Bad, and The Ugly

ClickHouse ReplacingMergeTree Explained: The Good, The Bad, and The Ugly ClickHouse’s ReplacingMergeTree engine has been a cornerstone of the platform for over a decade, offering powerful capabilities for handling real-time updates in analytical workloads. While […]

Pro Tricks to Build Cost-Efficient Analytics: Snowflake vs BigQuery vs ClickHouse® for Any Business

ChistaDATA Inc.

Cost-Efficient Analytics In today’s data-driven landscape, choosing the right analytics platform can make or break your budget. Cost-efficient analytics is no longer optional but essential. Whether you’re a startup analyzing user behavior or an enterprise […]

Avoiding ClickHouse Fan Traps : A Technical Guide for High-Performance Analytics

Shiv Iyer

Avoiding Fan Traps in ClickHouse: A Technical Guide for High-Performance Analytics Fan traps are one of the most insidious data modeling issues in analytical databases, and ClickHouse is no exception. While ClickHouse’s columnar architecture and […]

What’s a Data Lake For My Open Source ClickHouse® Stack

Shiv Iyer

What’s a Data Lake and What Does It Mean For My Open Source ClickHouse® Stack? In today’s data-driven landscape, organizations are generating massive volumes of structured and unstructured data from various sources. As businesses seek […]

ClickHouse Data Compression Techniques for Time-series Datasets

Optimizing Non-SARGable Predicates in ClickHouse for Improved Query Performance

Shiv Iyer

ClickHouse Query Optimization Non-SARGable (Search ARGument ABLE) predicates are conditions in SQL queries that prevent the database engine from using indexes efficiently, leading to full table scans and degraded query performance. Implementing and handling Non-SARGable […]

RocksDB + ClickHouse for High-Velocity Workloads

Enhancing Data Ingestion: Integrating RocksDB with ClickHouse for High-Velocity Workloads

Shiv Iyer

Introduction Integrating RocksDB with ClickHouse for high-velocity, high-volume data ingestion leverages the strengths of both systems to address specific challenges. RocksDB, a high-performance, embedded key-value store optimized for fast storage on flash and high-speed disk, […]

Demystifying JSON Data With ClickHouse

ChistaDATA Inc.

Introduction JSON refers to Javascript Object Notation. It is a popular text data format used to exchange data on modern web and mobile applications. It is based on a subset of the Javascript programming language. […]

Advantages of Column Stores for Real-time Analytics

ChistaDATA Inc.

Introduction In this blog post, I’m going to take on the subject of why we need ColumnStores for Analytics, the options we have, and how ClickHouse is compelling. Background and History Historically popular datastores have […]