# ClickHouse/ClickHouse

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45,963 stars · 8,096 forks · C++ · apache-2.0

## Links

- GitHub: https://github.com/ClickHouse/ClickHouse
- Homepage: https://clickhouse.com
- awesome-repositories: https://awesome-repositories.com/repository/clickhouse-clickhouse.md

## Topics

`ai` `analytics` `big-data` `clickhouse` `cloud-native` `cpp` `database` `dbms` `distributed` `embedded` `hacktoberfest` `lakehouse` `mpp` `olap` `rust` `self-hosted` `sql`

## Description

ClickHouse is a high-performance, columnar analytical database designed for real-time query execution and large-scale data aggregation. It functions as a distributed data warehouse capable of processing petabytes of information, while also providing an embedded engine that integrates directly into applications for native query capabilities without external dependencies. The system is built to handle high-throughput ingestion and complex analytical workloads, delivering millisecond-level latency for interactive dashboards and operational monitoring.

The platform distinguishes itself through advanced storage and execution techniques, including vectorized query processing and a merge tree storage engine that maintains performance during massive insertions. It features adaptive subcolumn mapping for semi-structured data and supports native vector search for machine learning and generative AI applications. To facilitate efficient data movement, the engine utilizes zero-copy shared memory buffers, minimizing overhead when interacting with external analytical tools or processing diverse file formats like Parquet, JSON, and Arrow.

Beyond its core storage and processing capabilities, the project provides a comprehensive suite of tools for observability, security, and data integration. It includes built-in support for natural language querying, automated workflow orchestration for AI agents, and extensive diagnostic features for query plan inspection. The platform also offers robust cloud infrastructure management, including support for private networking, compliant deployment strategies, and integrated billing consolidation.

## Tags

### Artificial Intelligence & ML

- [Agent Analytics](https://awesome-repositories.com/f/artificial-intelligence-ml/agent-analytics.md) — Provides specialized analytics dashboards and performance tracking for autonomous agents to evaluate task execution and data-driven decision quality. ([source](https://clickhouse.com/ai))
- [Agentic Architectures](https://awesome-repositories.com/f/artificial-intelligence-ml/agentic-architectures.md) — Provides a unified architecture for connecting large language models, analytical databases, and external tools into autonomous data-driven applications. ([source](https://clickhouse.com/ai))
- [Agentic Data Integrations](https://awesome-repositories.com/f/artificial-intelligence-ml/agentic-data-integrations.md) — Enables autonomous agents to perform real-time data exploration and vector search against analytical databases.
- [Vector Databases](https://awesome-repositories.com/f/artificial-intelligence-ml/vector-databases.md) — Provides high-performance vector search and data aggregation capabilities optimized for generative AI and machine learning workflows. ([source](https://clickhouse.com/index))
- [Natural Language Querying Interfaces](https://awesome-repositories.com/f/artificial-intelligence-ml/natural-language-querying-interfaces.md) — Enables users to perform complex data analysis and retrieval on public datasets using conversational natural language queries. ([source](https://clickhouse.com/ai))

### Data & Databases

- [Analytics Architectures](https://awesome-repositories.com/f/data-databases/analytics-architectures.md) — Enables the design of high-performance analytics systems through table partitioning, materialized views, and optimized data retention strategies. ([source](https://clickhouse.com/blog/10x-improved-response-times-cheaper-to-operate-and-30-storage-reduction-why-instabug-chose-clickhouse-for-apm))
- [Business Intelligence Platforms](https://awesome-repositories.com/f/data-databases/business-intelligence-platforms.md) — Powers real-time business intelligence applications by ingesting millions of rows per second and handling highly concurrent analytical workloads. ([source](https://clickhouse.com/use-cases/data-warehousing))
- [Columnar Data Stores](https://awesome-repositories.com/f/data-databases/columnar-data-stores.md) — Provides high-performance storage and querying for JSON data by mapping paths to dense subcolumns. ([source](https://clickhouse.com/blog/a-new-powerful-json-data-type-for-clickhouse))
- [Columnar Databases](https://awesome-repositories.com/f/data-databases/columnar-databases.md) — Provides a high-performance storage engine specifically architected for real-time analytical query execution and large-scale data aggregation.
- [Columnar Storage Engines](https://awesome-repositories.com/f/data-databases/columnar-storage-engines.md) — Implements a columnar storage architecture to accelerate high-speed analytical queries by reading only required data attributes.
- [Data Lake Acceleration](https://awesome-repositories.com/f/data-databases/data-lake-acceleration.md) — Accelerates performance-critical workloads by querying open table formats directly in place and writing results back to native storage. ([source](https://clickhouse.com/use-cases/data-warehousing))
- [Data Processing Pipelines](https://awesome-repositories.com/f/data-databases/data-processing-pipelines.md) — Executes data operations through a lazy pipeline that compiles into optimized SQL for high-performance database execution. ([source](https://clickhouse.com/chdb))
- [Data Warehousing](https://awesome-repositories.com/f/data-databases/data-warehousing.md) — Enables storage and analysis of large-scale datasets with high-performance query execution and optimized infrastructure costs. ([source](https://clickhouse.com/index))
- [Distributed Data Warehouses](https://awesome-repositories.com/f/data-databases/distributed-data-warehouses.md) — Provides a scalable architecture for managing concurrent analytical workloads and complex data processing tasks across multiple nodes.
- [Distributed Query Engines](https://awesome-repositories.com/f/data-databases/distributed-query-engines.md) — Coordinates parallel execution across multiple nodes by splitting query tasks and aggregating partial results into a final response.
- [Embedded Analytics Engines](https://awesome-repositories.com/f/data-databases/embedded-analytics-engines.md) — Provides a self-contained query engine that integrates directly into applications for native data analysis without external dependencies.
- [Embedded Database Engines](https://awesome-repositories.com/f/data-databases/embedded-database-engines.md) — Provides a high-performance database engine that runs directly within the application process for native object querying. ([source](https://clickhouse.com/chdb))
- [Local File Query Engines](https://awesome-repositories.com/f/data-databases/local-file-query-engines.md) — Executes high-performance analytical queries directly on local files like CSV, TSV, and Parquet without requiring a server installation. ([source](https://clickhouse.com/index))
- [Query Execution Engines](https://awesome-repositories.com/f/data-databases/query-execution-engines.md) — Processes blocks of data using SIMD instructions to maximize CPU efficiency during complex analytical calculations and aggregations.
- [Real-Time Analytics](https://awesome-repositories.com/f/data-databases/real-time-analytics.md) — Provides high-performance data processing and querying capabilities for millisecond-latency insights and operational monitoring.
- [Real-time Analytics Platforms](https://awesome-repositories.com/f/data-databases/real-time-analytics-platforms.md) — Provides high-speed, millisecond-latency analysis of massive datasets for interactive dashboards and instant insights. ([source](https://clickhouse.com/index))
- [Storage Engines](https://awesome-repositories.com/f/data-databases/storage-engines.md) — Implements a merge tree storage architecture to optimize high-throughput data ingestion and query performance.
- [Stream Processing Engines](https://awesome-repositories.com/f/data-databases/stream-processing-engines.md) — Ingests and analyzes millions of events per second to enable real-time telemetry and threat detection.
- [Vector Databases](https://awesome-repositories.com/f/data-databases/vector-databases.md) — Provides high-speed similarity matching and vector indexing capabilities for analytical workflows.
- [Data Ingestion Pipelines](https://awesome-repositories.com/f/data-databases/data-ingestion-pipelines.md) — Automates the ingestion of data from cloud storage and streaming services directly into warehouse table engines to streamline architectural complexity. ([source](https://clickhouse.com/blog/18x-faster-15x-cheaper-datavations-clickhouse-story))
- [Query Optimization Engines](https://awesome-repositories.com/f/data-databases/query-optimization-engines.md) — Transforms complex analytical operations into optimized, multi-threaded execution plans to minimize resource usage during data processing.
- [Time Series Indexing](https://awesome-repositories.com/f/data-databases/time-series-indexing.md) — Implements high-performance indexing to enable rapid lookups and efficient processing of large-scale time-series data streams. ([source](https://clickhouse.com/blog/-indexing-for-data-streams-benocs-telco))
- [Business Intelligence Connectors](https://awesome-repositories.com/f/data-databases/business-intelligence-connectors.md) — Provides a dedicated connector to bridge database systems with business intelligence platforms for interactive data visualization and reporting. ([source](https://clickhouse.com/blog/official-microsoft-power-bi-connector))
- [Command Line SQL Interfaces](https://awesome-repositories.com/f/data-databases/command-line-sql-interfaces.md) — Provides a terminal-based interface for executing database queries and managing data instances directly. ([source](https://clickhouse.com/integrations/clickhouse_client))
- [Compliant Database Deployments](https://awesome-repositories.com/f/data-databases/compliant-database-deployments.md) — Supports the deployment of analytical database services with built-in enterprise-grade security and regulatory compliance controls. ([source](https://clickhouse.com/partners/aws))
- [Data Exchange Protocols](https://awesome-repositories.com/f/data-databases/data-exchange-protocols.md) — Implements zero-copy shared memory buffers to eliminate serialization overhead during data transfer between database and analytical frameworks. ([source](https://clickhouse.com/chdb))
- [Data Ingestion Tools](https://awesome-repositories.com/f/data-databases/data-ingestion-tools.md) — Loads files from remote object storage directly into local tables using standard SQL commands. ([source](https://clickhouse.com/integrations/amazon_s3))
- [Data Processing Engines](https://awesome-repositories.com/f/data-databases/data-processing-engines.md) — Processes diverse data formats including Parquet, CSV, JSON, and Arrow to ensure broad interoperability across external sources. ([source](https://clickhouse.com/chdb))
- [Data Storage Optimizers](https://awesome-repositories.com/f/data-databases/data-storage-optimizers.md) — Automatically decomposes semi-structured data into dense internal columns to optimize storage space and query performance.
- [Database Optimization Tools](https://awesome-repositories.com/f/data-databases/database-optimization-tools.md) — Configures primary keys on frequently filtered columns to accelerate data retrieval and optimize query execution times. ([source](https://clickhouse.com/blog/a-simple-guide-to-clickhouse-query-optimization-part-1))
- [Dynamic Schema Storage](https://awesome-repositories.com/f/data-databases/dynamic-schema-storage.md) — Automatically manages subcolumn creation for arbitrary data types to optimize storage efficiency and prevent file growth. ([source](https://clickhouse.com/blog/a-new-powerful-json-data-type-for-clickhouse))
- [Query Analysis Tools](https://awesome-repositories.com/f/data-databases/query-analysis-tools.md) — Visualizes database execution plans to identify performance bottlenecks and optimize query efficiency without executing the queries. ([source](https://clickhouse.com/blog/a-simple-guide-to-clickhouse-query-optimization-part-1))
- [Query Performance Monitors](https://awesome-repositories.com/f/data-databases/query-performance-monitors.md) — Tracks query execution statistics and resource consumption to identify and optimize long-running database operations. ([source](https://clickhouse.com/blog/a-simple-guide-to-clickhouse-query-optimization-part-1))
- [Shared Memory Data Exchange](https://awesome-repositories.com/f/data-databases/shared-memory-data-exchange.md) — Enables high-speed data transfer between the engine and external tools using zero-copy buffers to bypass serialization overhead.
- [Telemetry Data Pipelines](https://awesome-repositories.com/f/data-databases/telemetry-data-pipelines.md) — Processes millions of events per second from streaming sources to enable real-time analytics and monitoring. ([source](https://clickhouse.com/industries/automotive))
- [Variant Data Type Storage](https://awesome-repositories.com/f/data-databases/variant-data-type-storage.md) — Supports storing multiple data types in a single column using discriminators for efficient management of heterogeneous data. ([source](https://clickhouse.com/blog/a-new-powerful-json-data-type-for-clickhouse))

### Security & Cryptography

- [Access Control Systems](https://awesome-repositories.com/f/security-cryptography/access-control-systems.md) — Enforces security policies through password management, data access restrictions, and comprehensive audit logging to prevent unauthorized access. ([source](https://clickhouse.com/trust/security))
- [Data Privacy Management](https://awesome-repositories.com/f/security-cryptography/data-privacy-management.md) — Provides comprehensive protocols for breach notifications, employee training, and cookie management to ensure adherence to global privacy regulations. ([source](https://clickhouse.com/trust/security))
- [Security Analytics Platforms](https://awesome-repositories.com/f/security-cryptography/security-analytics-platforms.md) — Provides high-throughput ingestion and low-latency query performance for real-time threat detection and security alerting. ([source](https://clickhouse.com/industries/cybersecurity))
- [Compliance Portals](https://awesome-repositories.com/f/security-cryptography/compliance-portals.md) — Provides a centralized portal for reviewing security posture and accessing official compliance documentation to verify data protection standards. ([source](https://clickhouse.com/trust/security))
- [Compliance Verification Tools](https://awesome-repositories.com/f/security-cryptography/compliance-verification-tools.md) — Automates the verification of international security and privacy standards through integrated audit reporting and certification documentation. ([source](https://clickhouse.com/trust/security))
- [Private Network Security](https://awesome-repositories.com/f/security-cryptography/private-network-security.md) — Enforces advanced data protection by leveraging cloud-native private networking controls to isolate and secure analytics traffic. ([source](https://clickhouse.com/partners/azure))
- [Product Security Management](https://awesome-repositories.com/f/security-cryptography/product-security-management.md) — Implements audit logging and data protection controls to ensure visibility and integrity within the application environment. ([source](https://clickhouse.com/trust/security))

### Software Engineering & Architecture

- [Distributed Coordination Systems](https://awesome-repositories.com/f/software-engineering-architecture/distributed-coordination-systems.md) — Provides a high-performance, linearizable coordination layer for managing state and synchronization across distributed system nodes. ([source](https://clickhouse.com/clickhouse/keeper))

### System Administration & Monitoring

- [API Performance Monitoring](https://awesome-repositories.com/f/system-administration-monitoring/api-performance-monitoring.md) — Provides real-time monitoring of API request metadata, latency, and consumption patterns across large-scale traffic. ([source](https://clickhouse.com/blog/100x-faster-graphql-hive-migration-from-elasticsearch-to-clickhouse))
- [Observability Platforms](https://awesome-repositories.com/f/system-administration-monitoring/observability-platforms.md) — Provides a scalable platform for storing and querying logs, metrics, and traces using high-performance analytical storage. ([source](https://clickhouse.com/index))

### DevOps & Infrastructure

- [Cloud Billing Management](https://awesome-repositories.com/f/devops-infrastructure/cloud-billing-management.md) — Simplifies cloud cost management and vendor procurement by consolidating billing through existing provider accounts. ([source](https://clickhouse.com/partners/aws))
- [Cloud Marketplaces](https://awesome-repositories.com/f/devops-infrastructure/cloud-marketplaces.md) — Provides one-click deployment and management of cloud-based services through an integrated marketplace interface. ([source](https://clickhouse.com/partners/azure))