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Data Infrastructure

ClickHouse

Column-oriented analytics database with open source and managed cloud editions

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About ClickHouse

ClickHouse develops an open source columnar database built for fast analytical queries over very large datasets. The company sells ClickHouse Cloud, a managed service, and supports self-managed deployments. It is used for real-time analytics, observability and data warehousing.

Common use cases

  • Real-time analytics
  • Observability data
  • Product analytics
  • Data warehouse acceleration

Social listening

What people are saying about ClickHouse

Reviewers value ClickHouse's very fast analytical queries and lower infrastructure cost, and buyers typically plan for operations, documentation and workload fit.

What stands out

  • Fast aggregations on large datasets are the most cited strength.
  • Teams report strong results on high-volume log and event ingestion.
  • Familiar SQL and the open-source model are seen as reducing lock-in.
  • The managed cloud offering is said to cut deployment and operations work.

Things to consider

  • Worth confirming documentation coverage for configuration and troubleshooting.
  • Plan for operational effort at scale and onboarding to its many parameters.
  • Best suited to analytical workloads rather than frequent small writes or transactional use.
  • Plan for SQL differences when migrating, and ask for a pricing estimate.

Often compared with: Snowflake

Sources (2)

Themes summarized from public reviews, community discussion and press coverage as of November 2026. They reflect public discussion, not a rating or an endorsement by AI Connect.

Products and services

ClickHouse Cloud

Managed ClickHouse service, with a Bring Your Own Cloud option.

ClickHouse Managed Postgres

Postgres service with native change data capture, integrated with ClickHouse.

ClickStack

Open-source observability stack for logs, metrics, traces and session replays, also offered managed.

Langfuse Cloud

Hosted LLM observability from the acquired Langfuse team.

ClickPipes

Data ingestion into ClickHouse Cloud.

Recent product updates

  • January 2026: announced a managed Postgres service alongside a funding round and the acquisition of Langfuse.

Key features

  • Columnar storage
  • Real-time ingestion
  • SQL analytics
  • Data compression
  • Distributed queries
  • Object storage tiering

Integrations

  • Kafka
  • dbt
  • Grafana
  • Superset
  • AWS S3
  • Apache Iceberg
  • Postgres

ClickHouse alternatives

FAQs

Is it open source?

Yes, the database is open source; the company sells a managed cloud service and support.

What is it good for?

Fast aggregations and queries over large event and log datasets.

Where does it run?

Managed on major clouds or self-hosted.

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