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ChistaDATA

Open-Source Trino ODBC Driver for MinIO/StorageGRID Integration

Shiv Iyer

Technical Guide: Implementing the Open-Source Trino ODBC Driver for MinIO/StorageGRID Integration Welcome to this implementation guide for the Trino ODBC driver, designed to integrate seamlessly with MinIO and StorageGRID systems. We have developed this resource […]

Benchmarking ClickHouse using the clickhouse-benchmark Tool
ClickHouse

Optimizing ClickHouse Thread Pools for High-Concurrency Workloads

Shiv Iyer

Unlocking Performance: How We Optimized ClickHouse Thread Pools for High-Concurrency Workloads Unveiling Hidden Bottlenecks: Optimizing ClickHouse Thread Pool Performance ClickHouse has earned its reputation as a powerhouse for lightning-fast analytics, capable of handling immense volumes […]

ClickHouse Data Compression Techniques for Time-series Datasets
ChistaDATA Cloud

Optimizing Non-SARGable Predicates in ClickHouse for Improved Query Performance

Shiv Iyer

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 predicates in ClickHouse […]

ClickHouse Redo Operations for Data Reliability
ClickHouse

Efficient Strategies for Purging Data in ClickHouse: Real-Life Use Cases and Detailed Implementation

Shiv Iyer

Efficiently purging data from ClickHouse is crucial for maintaining performance and managing storage costs, especially when dealing with large, real-life datasets. Here are some detailed strategies, complete with real-life data sets and use cases: 1. […]

Troubleshooting High CPU Usage in ClickHouse
ClickHouse

Securing ClickHouse Data at Rest: A Guide to Implementing Filesystem-Level Encryption

Shiv Iyer

ClickHouse does not directly support Transparent Data Encryption (TDE) in the same way that some other database systems do, such as Oracle or SQL Server, which provide built-in TDE capabilities to automatically encrypt database files. […]

Mastering Chained Joins In Clickhouse
ClickHouse

Enhancing Data Processing Workflows with Chained Materialized Views in ClickHouse

Shiv Iyer

Chaining materialized views in ClickHouse is a powerful feature that can significantly enhance data processing workflows by creating layers of data transformation and aggregation. This technique involves creating a series of materialized views where each […]

How NULL Values affect ClickHouse Query Performance
ClickHouse

Optimizing High-Velocity, High-Volume ETL Operations with Data Skipping Indexes in ClickHouse

Shiv Iyer

Data Skipping Indexes in ClickHouse are an effective optimization tool for enhancing query performance in high-velocity, high-volume ETL operations. These indexes help by allowing the database to skip over blocks of data that do not […]

ClickHouse

Strategic Considerations for Integrating ClickHouse with Row-based Systems: Balancing Performance and Architecture

Shiv Iyer

Switching from a row-based to a column-based database system like ClickHouse involves significant architectural changes and strategic planning. This transition can offer substantial performance benefits, especially for analytics and read-heavy operations, but it also presents […]

ClickHouse

Effective Strategies for Deleting Old Records in ClickHouse: Methods and Best Practices

Shiv Iyer

Deleting old records in ClickHouse requires careful consideration due to its append-only and columnar nature, which does not inherently support row-level deletions as efficiently as traditional relational databases. ClickHouse is designed for high-speed data writes […]

ClickHouse

Enhancing ClickHouse Performance: Strategic Insights on Partitioning, Indexing, and Monitoring

Shiv Iyer

Optimizing ClickHouse performance involves a multi-faceted approach that includes effective partitioning, strategic indexing, and diligent system monitoring. Each of these areas plays a crucial role in enhancing the efficiency and speed of operations within ClickHouse, […]

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ChistaDATA is committed to open source software and building high performance ColumnStores

In the spirit of freedom, independence and innovation. ChistaDATA Corporation is not affiliated with ClickHouse Corporation 

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★READ THIS WARNING★

* 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. 

Recent Posts from ChistaDATA

  • ClickHouse Storage Engines
  • ClickHouse Thread Architecture
  • Advanced ClickHouse SQL: Window Functions, Array, and JSON Processing
  • Untangling the Spaghetti: Writing Efficient ClickHouse SQL
  • Troubleshooting Suboptimal ClickHouse Queries

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