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Building ClickHouse Cloud From Scratch in a Year
Product
Building ClickHouse Cloud From Scratch in a Year

Have you ever wondered what it takes to build a serverless software as a service (SaaS) offering in under a year? In this blog post, we will describe how we built ClickHouse Cloud from the ground up

ClickHouse Team
ClickHouse Team
Mar 16, 2023
Women Who Inspire Us: Balancing Family, Career Changes and Startup Life - Elissa’s Journey in Tech
Company and culture
Women Who Inspire Us: Balancing Family, Career Changes and Startup Life - Elissa’s Journey in Tech

Read about Elissa's journey in tech. Celebrating the women in our community and company.

Elissa Weve
Elissa Weve
Mar 14, 2023
Handling Updates and Deletes in ClickHouse
Engineering
Handling Updates and Deletes in ClickHouse

With the recent addition of Lightweight Deletes, read about the latest best practices for handling updates and deletes in ClickHouse.

Denys Golotiuk
Denys Golotiuk
Mar 10, 2023
Fintech Leader Juspay Analyzes Over 50 Million Daily Payment Transactions in Real-Time with ClickHouse
Customer stories
Fintech Leader Juspay Analyzes Over 50 Million Daily Payment Transactions in Real-Time with ClickHouse

Juspay, an Indian fintech company, uses ClickHouse to power A/B testing and monitoring for its end-to-end payment solutions and real-time merchant dashboards. With over 50 million daily transactions for clients such as Amazon, Google, and Vodafone, Click

Elissa Weve
Elissa Weve
Mar 10, 2023
ClickHouse Release 23.2
Engineering
ClickHouse Release 23.2

18 new features, 30 performance optimizations and 43 fixes. 22.2 brings support for Apache Icebery, Prewhere optimizations and a correlation matrix function

The ClickHouse Team
The ClickHouse Team
Mar 9, 2023
Women Who Inspire Us: The Women Pioneers in ClickHouse Community and Company
Company and culture
Women Who Inspire Us: The Women Pioneers in ClickHouse Community and Company

International Women's Day presents an opportunity to acknowledge and appreciate the countless professional women who are shaping the world in diverse fields, ranging from executives and entrepreneurs to scientists and activists.

ClickHouse People Team
ClickHouse People Team
Mar 8, 2023
ClickHouse: A Blazingly Fast DBMS with Full SQL Join Support - Part 1
Engineering
ClickHouse: A Blazingly Fast DBMS with Full SQL Join Support - Part 1

Read about how ClickHouse fully supports all SQL joins and how they are adapted to the ClickHouse query pipeline and optimized for performance.

Tom Schreiber
Tom Schreiber
Mar 2, 2023
Using ClickHouse to Serve Real-Time Queries on Top of BigQuery Data
Engineering
Using ClickHouse to Serve Real-Time Queries on Top of BigQuery Data

Unlock powerful real-time analytics with ClickHouse. Learn how to seamlessly migrate data from BigQuery and supercharge your data-driven decision-making.

Dale McDiarmid
Dale McDiarmid
Feb 27, 2023
Five Methods For Database Obfuscation
Engineering
Five Methods For Database Obfuscation

Testing ClickHouse and proving we're the world's fastest analytical database requires realistic data. Unfortunately, real data is often sensitive. Learn about the origins of the tool clickhouse-obfuscator, and we obfuscate test data for ClickHouse.

Alexey Milovidov
Alexey Milovidov
Feb 16, 2023
ClickHouse welcomes Metabase Cloud GA integration
Engineering
ClickHouse welcomes Metabase Cloud GA integration

We're pleased to announce the GA release of the official ClickHouse plugin for Metabase and its availability in Metabase Cloud!

The ClickHouse Team
The ClickHouse Team
Feb 15, 2023
ClickHouse Newsletter February 2023: A ‘Sample’ of What’s Happening in the Community
Product
ClickHouse Newsletter February 2023: A ‘Sample’ of What’s Happening in the Community

How is it possible that it is 2023? And, not only that, already time for our second newsletter of the year! Compiling the reading list this month was particularly difficult as the amount of content was immense.

Dale McDiarmid
Dale McDiarmid
Feb 15, 2023
A Story of Open-source GitHub Activity using ClickHouse + Grafana
Engineering
A Story of Open-source GitHub Activity using ClickHouse + Grafana

Read about, and watch our recent webinar on how ClickHouse and Grafana can be used to build beautiful real-time dashboards, with a demo taking Grafana users down memory lane and 10 years since the first commit.

The ClickHouse Team
The ClickHouse Team
Feb 10, 2023
Introducing the ClickHouse Query Cache
Engineering
Introducing the ClickHouse Query Cache

With 23.1 we introduced the Query Cache. Such a feature deserves its own blog post, so read about the design, how to use the cache, and future planned improvements.

Robert Schulze
Robert Schulze
Feb 9, 2023
Using Aggregate Combinators in ClickHouse
Engineering
Using Aggregate Combinators in ClickHouse

Need to solve a specific aggregation problem and can't find the function you're looking for? Look no further than Aggregate Combinators! Learn how you can combine aggregation functions with combinators to elegantly solve complex queries

Denys Golotiuk
Denys Golotiuk
Feb 8, 2023
Analyzing AWS Flow Logs using ClickHouse
Engineering
Analyzing AWS Flow Logs using ClickHouse

Debug security group issues, monitor your ingress and egress traffic, and minimize your cloud traffic costs - all by just inserting your AWS Flow Logs into ClickHouse!

Marcel Birkner
Marcel Birkner
Feb 6, 2023
For the Love of Coffee (and Distributed Working)
Company and culture
For the Love of Coffee (and Distributed Working)

Working remotely is one thing, but how connected you are within a company is another. It’s so rewarding to know who every single person is, what is going on in their lives and, of course, be comfortable enough to ask, “Hey, let’s share an awesome cup of c

Anne Krechmer
Anne Krechmer
Feb 3, 2023
Introducing Inverted Indices in ClickHouse
Engineering
Introducing Inverted Indices in ClickHouse

Inverted Indices to ClickHouse? Yes, you read it right. Read on to learn more about how they work and how you can use them to accelerate your string matching.

Robert Schulze
Robert Schulze
Feb 2, 2023
ClickHouse and dbt - A Gift from the Community
Engineering
ClickHouse and dbt - A Gift from the Community

Following up on our recent webinar, read about how dbt can be used with ClickHouse thanks to a community contribution and how some recent developments ClickHouse have allowed improvements in the plugin.

The ClickHouse Team
The ClickHouse Team
Feb 1, 2023
Using TTL to Manage Data Lifecycles in ClickHouse
Engineering
Using TTL to Manage Data Lifecycles in ClickHouse

Learn how to manage data lifecycles in ClickHouse, from deleting rows and columns to modifying compression levels and colum

Denys Golotiuk
Denys Golotiuk
Jan 31, 2023
ClickHouse Release 23.1
Engineering
ClickHouse Release 23.1

It's a new year! And, it is also a new release of ClickHouse. We are delighted to introduce 23.1. Inverted Indices, Parametized Views and a Query Results Cache! Not to mention 17 performance optimisations and 78 bug fixes!

The ClickHouse Team
The ClickHouse Team
Jan 30, 2023
Trillabit Utilizes the Power of ClickHouse for Fast, Scalable Results Within Their Self-Service, Search-Driven Analytics Offering
Customer stories
Trillabit Utilizes the Power of ClickHouse for Fast, Scalable Results Within Their Self-Service, Search-Driven Analytics Offering

We welcome Trillabit as a guest to our blog. Read on to hear from Keith Riddolls (CEO/Founder) to find out why they chose ClickHouse over Apache Solr and Snowflake to power their reporting and business intelligence platform.

 Keith Riddolls
Keith Riddolls
Jan 30, 2023
ClickHouse and PostgreSQL - a Match Made in Data Heaven - part 2
Engineering
ClickHouse and PostgreSQL - a Match Made in Data Heaven - part 2

Read the the final part in our series on how Postgres and ClickHouse complement each other, this time focusing on dictionaries and reverse ETL.

Dale McDiarmid
Dale McDiarmid
Jan 26, 2023
An Introduction to Data Formats in ClickHouse
Engineering
An Introduction to Data Formats in ClickHouse

Learn about the wide range of data formats supported by ClickHouse, for both input and output, and read more in our newly published guides.

Denys Golotiuk
Denys Golotiuk
Jan 24, 2023
ClickHouse Powers Dassana’s Security Data Lake
Customer stories
ClickHouse Powers Dassana’s Security Data Lake

We would like to welcome Gaurav Kumar, Founder and CEO of Dassana as a guest to our blog today. Read on to hear why they chose ClickHouse for their Security Data Lake which consolidates disparate data sources to provide contextualized data insights.

Gaurav Kumar
Gaurav Kumar
Jan 23, 2023
ClickHouse Fiddle — A SQL Playground for ClickHouse
Engineering
ClickHouse Fiddle — A SQL Playground for ClickHouse

Read about how our community created a new SQL playground for ClickHouse, allowing you to run and test queries on any version!

Igor Baliuk
Igor Baliuk
Jan 20, 2023
Using Materialized Views in ClickHouse
Engineering
Using Materialized Views in ClickHouse

Learn how to use Materialized Views in ClickHouse to improve query performance and extend data management capabilities.

Denys Golotiuk
Denys Golotiuk
Jan 19, 2023
ClickHouse Newsletter January 2023: Better Safe Than Sorry
Product
ClickHouse Newsletter January 2023: Better Safe Than Sorry

ClickHouse Newsletter January 2023: Better Safe Than Sorry

Christoph Wurm
Christoph Wurm
Jan 19, 2023
Sending Windows Event Logs to ClickHouse with Fluent Bit
Engineering
Sending Windows Event Logs to ClickHouse with Fluent Bit

Monitor your Windows servers and workstations for security threats by sending Event Logs to ClickHouse using FluentBit

Arnold van Wijnbergen
Arnold van Wijnbergen
Jan 17, 2023
Announcing a New Official ClickHouse Kafka Connector
Engineering
Announcing a New Official ClickHouse Kafka Connector

Announcing the release of a new official ClickHouse Kafka Connect Connector with exactly-once delivery semantics

The ClickHouse Team
The ClickHouse Team
Jan 12, 2023
Building an Observability Solution with ClickHouse in 2023 - Part 1 - Logs
Engineering
Building an Observability Solution with ClickHouse in 2023 - Part 1 - Logs

In this blog series we discuss how to build an Observability solution with ClickHouse, first focusing on Logs and data collection using Vector, Fluent Bit and the Open Telemetry Collector

Dale McDiarmid
Dale McDiarmid
Jan 11, 2023
Working with Time Series Data in ClickHouse
Engineering
Working with Time Series Data in ClickHouse

Read about how you can store and query time series data in ClickHouse using a range of functions and SQL techniques

Denys Golotiuk
Denys Golotiuk
Jan 10, 2023
HIFI’s migration from BigQuery to ClickHouse
Customer stories
HIFI’s migration from BigQuery to ClickHouse

Find out why HIFI switched from BigQuery to ClickHouse to aggregate royalties data from disparate revenue streams.

HIFI
HIFI
Jan 9, 2023
Using ClickHouse to Monitor Job Queues in GitHub Actions
Engineering
Using ClickHouse to Monitor Job Queues in GitHub Actions

Read how you can monitor the job queues for GitHub Actions using ClickHouse

Misha Shiryaev
Misha Shiryaev
Jan 5, 2023
Extracting, Converting, and Querying Data in Local Files using clickhouse-local
Engineering
Extracting, Converting, and Querying Data in Local Files using clickhouse-local

Learn how you can use clickhouse-local to analyze and transform your local and remote files using just the power of SQL on your laptop

Denys Golotiuk
Denys Golotiuk
Jan 4, 2023
Essential Monitoring Queries - part 2 - SELECT Queries
Engineering
Essential Monitoring Queries - part 2 - SELECT Queries

Read about how to monitor and troubleshoot your SELECT queries in the second blog of this series from our support team

Camilo Sierra
Camilo Sierra
Jan 3, 2023
Generating Random Data in ClickHouse
Engineering
Generating Random Data in ClickHouse

Read about how you can generate realistic test data for your applications using ClickHouse's random functions

Denys Golotiuk
Denys Golotiuk
Dec 29, 2022
Essential Monitoring Queries - part 1 - INSERT Queries
Engineering
Essential Monitoring Queries - part 1 - INSERT Queries

Read about how to monitor and troubleshoot your insert queries in the first blog of this series from our support team

Camilo Sierra
Camilo Sierra
Dec 28, 2022
System Tables and a Window into the Internals of ClickHouse
Product
System Tables and a Window into the Internals of ClickHouse

Ever wondered how to debug an issue in ClickHouse? Need a specific statistic, or are you curious about the queries being executed by your users and those that are failing? Read about how ClickHouse support uses system tables to answer these questions.

Derek Chia
Derek Chia
Dec 21, 2022
ClickHouse and PostgreSQL - a Match Made in Data Heaven - part 1
Engineering
ClickHouse and PostgreSQL - a Match Made in Data Heaven - part 1

Read about how PostgreSQL and ClickHouse complement each other and how data can be easily moved between them using native ClickHouse functions.

Dale McDiarmid
Dale McDiarmid
Dec 20, 2022
ClickHouse Release 22.12
Engineering
ClickHouse Release 22.12

17 new features. 8 performance optimisations. 39 bug fixes. If that’s not enough to get you interested in trying it out. Check out some of the headline items: * grace_hash JOINs * password complexity rules * BSON support * GROUP BY ALL support * Add

The ClickHouse team
The ClickHouse team
Dec 19, 2022
Super charging your ClickHouse queries
Engineering
Super charging your ClickHouse queries

Read about generic techniques you can use to accelerate your ClickHouse queries including projections and indexes

Tom Schreiber
Tom Schreiber
Dec 15, 2022
Optimizing ClickHouse with Schemas and Codecs
Engineering
Optimizing ClickHouse with Schemas and Codecs

Read about how you can optimize your data storage and achieve higher levels of compressions with schema changes and codecs

Dale McDiarmid
Dale McDiarmid
Dec 14, 2022
ClickHouse Newsletter December 2022: Project all your troubles away
Product
ClickHouse Newsletter December 2022: Project all your troubles away

ClickHouse Newsletter December 2022: Project all your troubles away

Christoph Wurm
Christoph Wurm
Dec 13, 2022
User-defined functions in ClickHouse Cloud
Engineering
User-defined functions in ClickHouse Cloud

Read about how we can now use User Defined Functions (UDFs) in ClickHouse Cloud to solve problems beyond the ClickHouse grammar

Dale McDiarmid & Tom Schreiber
Dale McDiarmid & Tom Schreiber
Dec 8, 2022
Using Dictionaries to Accelerate Queries
Engineering
Using Dictionaries to Accelerate Queries

Dictionaries are now available in ClickHouse Cloud. Learn how to use them today to accelerate your queries!

Dale McDiarmid
Dale McDiarmid
Dec 7, 2022
NYC Meetup Report: Large Scale Financial Market Analytics with ClickHouse
Company and culture
NYC Meetup Report: Large Scale Financial Market Analytics with ClickHouse

On December 6, 2022, Baudouin Giard, Engineering Team Lead on the Structured Products team at Bloomberg, presented his team's use case for ClickHouse at the NYC meetup.

ClickHouse Editor
ClickHouse Editor
Dec 6, 2022
NYC Meetup Report: Real-time Slicing and Dicing Reporting with ClickHouse
Company and culture
NYC Meetup Report: Real-time Slicing and Dicing Reporting with ClickHouse

On December 6, 2022, Vadim Semenov, Engineering Manager in charge of Reporting and Analytics at Rokt, presented his team's use case for ClickHouse at the NYC meetup. Rokt is a global marketing technology company that specializes in developing e-commerce m

ClickHouse Editor
ClickHouse Editor
Dec 6, 2022
NYC Meetup Report: High-Speed Content Distribution Analytics for Streaming Platforms
Company and culture
NYC Meetup Report: High-Speed Content Distribution Analytics for Streaming Platforms

On December 6, 2022 Roni Lazimi, a Software Engineer from Disney's Observability team within Disney+ participated in the ClickHouse Meetup at the Rokt office in NYC.

ClickHouse Editor
ClickHouse Editor
Dec 6, 2022
ClickHouse Cloud is now Generally Available
Product
ClickHouse Cloud is now Generally Available

ClickHouse Cloud is production-ready with SOC 2 Type II compliance, Uptime SLAs, and AWS Marketplace integration.

Tanya Bragin
Tanya Bragin
Dec 6, 2022
ClickHouse Launches Cloud Offering For World’s Fastest OLAP Database Management System
Company and culture
ClickHouse Launches Cloud Offering For World’s Fastest OLAP Database Management System

ClickHouse, used by Cloudflare, Adevinta, Uber, and thousands of other companies, available today on AWS Marketplace as a cloud offering - ClickHouse Cloud

Nick Peart
Nick Peart
Dec 5, 2022
ClickHouse 22.11 Release
Engineering
ClickHouse 22.11 Release

15 new features. 5 performance optimisations. 32 bug fixes. Including: Composite time intervals, Support for ** Glob, Functions for Spark compatibility, Retries on INSERT, Data Lake support via Apache Hudi and Delta Lake for SELECT queries.

The ClickHouse team
The ClickHouse team
Dec 1, 2022
ClickHouse Cloud is now SOC 2 Type II Compliant
Product
ClickHouse Cloud is now SOC 2 Type II Compliant

Our security and compliance commitment to you, third party verified and now available for download.

Leticia Webb
Leticia Webb
Nov 29, 2022
JIT in ClickHouse
Engineering
JIT in ClickHouse

Read about how we exploit JIT compilation in ClickHouse

Maksim Kita
Maksim Kita
Nov 23, 2022
Window and array functions for Git commit sequences
Engineering
Window and array functions for Git commit sequences

Read about how array and window functions can be used to identify sequences in data, using Git commits an example

Dale McDiarmid and Tom Schreiber
Dale McDiarmid and Tom Schreiber
Nov 16, 2022
Git commits and our community
Engineering
Git commits and our community

Read about how you can store the git commit history of any repository in ClickHouse for analysis...starting with ClickHouse itself.

The ClickHouse team
The ClickHouse team
Nov 15, 2022
ClickHouse Newsletter November 2022: The purifying effects of obfuscation
Product
ClickHouse Newsletter November 2022: The purifying effects of obfuscation

ClickHouse Newsletter November 2022: The purifying effects of obfuscation

Christoph Wurm
Christoph Wurm
Nov 10, 2022
100x Faster: GraphQL Hive migration from Elasticsearch to ClickHouse
Customer stories
100x Faster: GraphQL Hive migration from Elasticsearch to ClickHouse

Learn how migrating from Elasticsearch to ClickHouse enabled GraphQL Hive to scale from millions to billions of requests monthly and make everything 100x faster. "ClickHouse helped us to scale from millions to billions of rows monthly without headaches."

The Guild
The Guild
Nov 3, 2022
ClickHouse Spotlight: Niek Lok
Company and culture
ClickHouse Spotlight: Niek Lok

This month, we’ve had the opportunity to chat with Niek Lok, Commercial Account Executive- EMEA, based in Amsterdam, the Netherlands. We’re very grateful to Niek for all the work he does with users of ClickHouse and clients, as well as his uniquely positi

Marina Farthouat
Marina Farthouat
Oct 31, 2022
Sending Kubernetes logs To ClickHouse with Fluent Bit
Engineering
Sending Kubernetes logs To ClickHouse with Fluent Bit

Send Kubernetes logs to ClickHouse with Fluent Bit

Calyptia
Calyptia
Oct 28, 2022
Getting started with ClickHouse? Here are 13 "Deadly Sins" and how to avoid them
Engineering
Getting started with ClickHouse? Here are 13 "Deadly Sins" and how to avoid them

The 13 most common getting started issues with ClickHouse

Dale McDiarmid, Tom Schreiber & Geoff Genz
Dale McDiarmid, Tom Schreiber & Geoff Genz
Oct 26, 2022
More Than 2x Faster Hashing in ClickHouse Using Rust
Engineering
More Than 2x Faster Hashing in ClickHouse Using Rust

Rust’s rich type system and ownership model guarantee memory-safety and thread-safety. There are a fairly large number of useful libraries written on it, so we considered using them in ClickHouse.

Denis Bolonin
Denis Bolonin
Oct 25, 2022
Sending Nginx logs to ClickHouse with Fluent Bit
Engineering
Sending Nginx logs to ClickHouse with Fluent Bit

Send Nginx logs to ClickHouse with Fluent Bit

Calyptia
Calyptia
Oct 21, 2022
Node.js client for ClickHouse
Engineering
Node.js client for ClickHouse

ClickHouse Official Node.js Client is now available!

Serge Klochkov, Mikhail Shustov
Serge Klochkov, Mikhail Shustov
Oct 20, 2022
Visualizing Data with ClickHouse - Part 3 - Metabase
Engineering
Visualizing Data with ClickHouse - Part 3 - Metabase

Visualizing data in ClickHouse with Metabase

Dale McDiarmid
Dale McDiarmid
Oct 19, 2022
The world’s fastest tool for querying JSON files
Engineering
The world’s fastest tool for querying JSON files

The world’s fastest command-line tool for querying JSON files? clickhouse-local.

Pavel Kruglov
Pavel Kruglov
Oct 14, 2022
ClickHouse Newsletter October 2022: A cloud has arrived
Product
ClickHouse Newsletter October 2022: A cloud has arrived

ClickHouse Newsletter October 2022: A cloud has arrived

Christoph Wurm
Christoph Wurm
Oct 13, 2022
Visualizing Data with ClickHouse - Part 2 - Superset
Engineering
Visualizing Data with ClickHouse - Part 2 - Superset

Visualizing data in ClickHouse with Superset

Dale McDiarmid
Dale McDiarmid
Oct 12, 2022
Contentsquare Migration from Elasticsearch to ClickHouse
Customer stories
Contentsquare Migration from Elasticsearch to ClickHouse

ClickHouse turned out to be 11 times cheaper (in infrastructure cost) and allowed us to have a 10x performance improvement in our p99 for queries.

Ryad Zenine
Ryad Zenine
Oct 11, 2022
Visualizing Data with ClickHouse - Part 1 - Grafana
Engineering
Visualizing Data with ClickHouse - Part 1 - Grafana

Visualizing data in ClickHouse with Grafana

Dale McDiarmid
Dale McDiarmid
Oct 7, 2022
ClickHouse Cloud is now in Public Beta
Product
ClickHouse Cloud is now in Public Beta

ClickHouse Cloud has entered public beta. Get your free trial now!

The ClickHouse Team
The ClickHouse Team
Oct 4, 2022
Getting Data Into ClickHouse - Part 3 - Using S3
Engineering
Getting Data Into ClickHouse - Part 3 - Using S3

In part 3 of the Getting data into ClickHouse series, we use S3 as a datasource for ClickHouse to perform an analysis on over 10 billion forex trades.

Dale McDiarmid & Tom Schreiber
Dale McDiarmid & Tom Schreiber
Sep 16, 2022
ClickHouse Newsletter September 2022: Deleting data can make you feel better
Product
ClickHouse Newsletter September 2022: Deleting data can make you feel better

ClickHouse Newsletter September 2022: Deleting data can make you feel better

Christoph Wurm
Christoph Wurm
Sep 15, 2022
ClickHouse Spotlight: San Tran
Company and culture
ClickHouse Spotlight: San Tran

This month, we’ve had the opportunity to chat with San Tran, Application Security Engineer based in Australia.

Marina Farthouat
Marina Farthouat
Sep 8, 2022
Exploring massive, real-world data sets: 100+ Years of Weather Records in ClickHouse
Engineering
Exploring massive, real-world data sets: 100+ Years of Weather Records in ClickHouse

The first part in a series where we load real world datasets into ClickHouse in a few simple steps.

Dale McDiarmid & Tom Schreiber
Dale McDiarmid & Tom Schreiber
Sep 7, 2022
ClickHouse Plugin for Grafana - 2.0 Release
Engineering
ClickHouse Plugin for Grafana - 2.0 Release

The 2.0 release of the ClickHouse plugin for Grafana improves filtering while adding support for HTTP and JSON.

Dale McDiarmid
Dale McDiarmid
Sep 2, 2022
Getting Data Into ClickHouse - Part 2 - A JSON detour
Engineering
Getting Data Into ClickHouse - Part 2 - A JSON detour

In part 2 of the Getting data into ClickHouse series, we utilize the JSON type demonstrating its flexibility for handling semi-structured data.

Dale McDiarmid
Dale McDiarmid
Sep 1, 2022
Getting Data Into ClickHouse - Part 1
Engineering
Getting Data Into ClickHouse - Part 1

Get started with ClickHouse by inserting data from local and remote files

Dale McDiarmid
Dale McDiarmid
Aug 26, 2022
ClickHouse Newsletter August 2022: Airlines are maybe not that bad
Product
ClickHouse Newsletter August 2022: Airlines are maybe not that bad

ClickHouse Newsletter August 2022: Airlines are maybe not that bad

Christoph Wurm
Christoph Wurm
Aug 11, 2022
From experimentation to production, the journey to Supercolumn
Customer stories
From experimentation to production, the journey to Supercolumn

On why exactly NANO Corp. switched to ClickHouse to support its NOC as a Service (NOCaaS) offering and never looked back!

Florian Thebault
Florian Thebault
Jul 28, 2022
Fast, Feature Rich and Mutable : ClickHouse Powers Darwinium's Security and Fraud Analytics Use Cases
Customer stories
Fast, Feature Rich and Mutable : ClickHouse Powers Darwinium's Security and Fraud Analytics Use Cases

After analysing a few other database systems and weighing up the pros and cons of each, the Darwinium team chose ClickHouse as the database engine of choice to power its interactive analytics use cases for fraud and cybersecurity analysts.

 Ananth Gundabattula
Ananth Gundabattula
Jul 27, 2022
DeepL’s journey with ClickHouse
Customer stories
DeepL’s journey with ClickHouse

At DeepL, we use ClickHouse as our central data warehouse. Today, it serves multiple use-cases: From analytics for our websites and apps, to making company metrics available to everyone, as well as technical monitoring.

Jannik Hoffjann & Till Westermann
Jannik Hoffjann & Till Westermann
Jul 26, 2022
ClickHouse Spotlight: Claire Lucas
Company and culture
ClickHouse Spotlight: Claire Lucas

This month, we’ve had the chance to chat with Claire Lucas, our Director of Global Business Strategy & Operations, based in the US, Colorado.

Marina Farthouat
Marina Farthouat
Jul 19, 2022
ClickHouse Newsletter July 2022: Geo queries for railway enthusiasts
Product
ClickHouse Newsletter July 2022: Geo queries for railway enthusiasts

ClickHouse Newsletter July 2022: Geo queries for railway enthusiasts

Christoph Wurm
Christoph Wurm
Jul 14, 2022
ClickHouse + Deepnote: Data Notebooks & Collaborative Analytics
Customer stories
ClickHouse + Deepnote: Data Notebooks & Collaborative Analytics

Today we are pleased to announce the availability of an integration allowing ClickHouse users to quickly, and simply, install and use Deepnote.

Tyler Hannan
Tyler Hannan
Jun 30, 2022
Optimizing your customer-facing analytics experience with Cumul.io and ClickHouse
Customer stories
Optimizing your customer-facing analytics experience with Cumul.io and ClickHouse

Optimizing your customer-facing analytics experience with Cumul.io and ClickHouse

Cumul.io
Cumul.io
Jun 29, 2022
Collecting Semi-structured Data from Kafka Topics Using ClickHouse Kafka Engine
Customer stories
Collecting Semi-structured Data from Kafka Topics Using ClickHouse Kafka Engine

Collecting Semi-structured Data from Kafka Topics Using ClickHouse Kafka Engine

Marijan Ralasic
Marijan Ralasic
Jun 15, 2022
ClickHouse Over the Years with Benchmarks
Engineering
ClickHouse Over the Years with Benchmarks

ClickHouse is developing very quickly: you can see semi-structured data support, asynchronous inserts, replicated database engine, RBAC and other large features developed just recently

Ilya Yatsishin
Ilya Yatsishin
Jun 14, 2022
ClickHouse Newsletter June 2022: Materialized, but still real-time
Product
ClickHouse Newsletter June 2022: Materialized, but still real-time

Our regular May release has new features for those of you running large memory-hungry workloads, we talk about querying incomplete time series data and bring you some reading material to enjoy on your garden or balcony at the end.

Christoph Wurm
Christoph Wurm
Jun 9, 2022
Amsterdam Meetup With The ClickHouse Team – June 8th, 2022
Company and culture
Amsterdam Meetup With The ClickHouse Team – June 8th, 2022

It’s not just an opportunity to network, though. You will hear stories of ClickHouse powering a performance & monitoring service and a detailed exploration of how, and why, ClickHouse is so fast.

Tyler Hannan
Tyler Hannan
May 25, 2022
How QuickCheck uses ClickHouse to bring banking to the Unbanked
Customer stories
How QuickCheck uses ClickHouse to bring banking to the Unbanked

How QuickCheck uses ClickHouse to bring banking to the Unbanked

Luis Rodrigues
Luis Rodrigues
May 24, 2022
DENIC Improves Query Times By 10x with ClickHouse
Customer stories
DENIC Improves Query Times By 10x with ClickHouse

Read on to find out why DENIC chose ClickHouse to power their data science platform allowing them to analyze data from a wide range of sources.

Christian Petrasch and Robin Gontermann
Christian Petrasch and Robin Gontermann
May 10, 2022
ClickHouse Newsletter May 2022: Explain Statement – Query Optimization
Product
ClickHouse Newsletter May 2022: Explain Statement – Query Optimization

A warm welcome to you all. It has been a busy few weeks at the ClickHouse office in Amsterdam – we have launched the private preview phase of our ClickHouse Cloud service!

Christoph Wurm
Christoph Wurm
May 9, 2022
10x improved response times, cheaper to operate, and 30% storage reduction: why Instabug chose ClickHouse for APM
Customer stories
10x improved response times, cheaper to operate, and 30% storage reduction: why Instabug chose ClickHouse for APM

10x improved response times, cheaper to operate, and 30% storage reduction: why Instabug chose ClickHouse for APM

Sayed Alesawy
Sayed Alesawy
May 3, 2022
ClickHouse Docs have a new look and feel!
Company and culture
ClickHouse Docs have a new look and feel!

ClickHouse Docs have a new look and feel!

Rich Raposa
Rich Raposa
Apr 26, 2022
ClickHouse Newsletter April 2022: JSON, JSON, JSON
Product
ClickHouse Newsletter April 2022: JSON, JSON, JSON

ClickHouse Newsletter April 2022: JSON, JSON, JSON

Christoph Wurm
Christoph Wurm
Apr 14, 2022
ClickHouse 22.3 LTS Released
Product
ClickHouse 22.3 LTS Released

ClickHouse 22.3 LTS Released

Alexey Milovidov
Alexey Milovidov
Apr 12, 2022
Building a Paste Service With ClickHouse
Engineering
Building a Paste Service With ClickHouse

Building a Paste Service With ClickHouse

Alexey Milovidov
Alexey Milovidov
Apr 1, 2022
We Stand With Ukraine
Company and culture
We Stand With Ukraine

We Stand With Ukraine

Aaron Katz, Yury Izrailevsky and Alexey Milovidov
Aaron Katz, Yury Izrailevsky and Alexey Milovidov
Mar 31, 2022
How BENOCS uses ClickHouse to monitor network traffic for the world’s biggest telcos
Customer stories
How BENOCS uses ClickHouse to monitor network traffic for the world’s biggest telcos

How BENOCS uses ClickHouse to monitor network traffic for the world’s biggest telcos

Ingmar Poese & Rebecca Maschke
Ingmar Poese & Rebecca Maschke
Mar 22, 2022
International Women’s Day 2022: #BreakTheBias
Company and culture
International Women’s Day 2022: #BreakTheBias

International Women’s Day 2022: #BreakTheBias

Kristina Frost
Kristina Frost
Mar 8, 2022
Stories of Difference, Inspiration, Courage, and Empathy: International Women’s Day 2022
Company and culture
Stories of Difference, Inspiration, Courage, and Empathy: International Women’s Day 2022

Stories of Difference, Inspiration, Courage, and Empathy: International Women’s Day 2022

Kristina Frost
Kristina Frost
Mar 8, 2022
ClickHouse Newsletter March 2022: There’s a window function for that!
Product
ClickHouse Newsletter March 2022: There’s a window function for that!

ClickHouse Newsletter March 2022: There’s a window function for that!

Christoph Wurm
Christoph Wurm
Mar 7, 2022
ClickHouse 22.2 Released
Product
ClickHouse 22.2 Released

ClickHouse 22.2 Released

Alexey Milovidov
Alexey Milovidov
Feb 24, 2022
Opensee: Analyzing Terabytes of Financial Data a Day With ClickHouse
Customer stories
Opensee: Analyzing Terabytes of Financial Data a Day With ClickHouse

Opensee: Analyzing Terabytes of Financial Data a Day With ClickHouse

Christophe Rivoire and Elena Bessis
Christophe Rivoire and Elena Bessis
Feb 22, 2022
ClickHouse Newsletter February 2022: Do you know how to search a table?
Product
ClickHouse Newsletter February 2022: Do you know how to search a table?

ClickHouse Newsletter February 2022: Do you know how to search a table?

Christoph Wurm
Christoph Wurm
Feb 10, 2022
What’s New in ClickHouse 22.1
Product
What’s New in ClickHouse 22.1

What’s New in ClickHouse 22.1

Alexey Milovidov
Alexey Milovidov
Jan 26, 2022
Admixer Aggregates Over 1 Billion Unique Users a Day using ClickHouse
Customer stories
Admixer Aggregates Over 1 Billion Unique Users a Day using ClickHouse

Admixer Aggregates Over 1 Billion Unique Users a Day using ClickHouse

Vladimir Zakrevsky
Vladimir Zakrevsky
Jan 11, 2022
Decorating a Christmas Tree With the Help Of Flaky Tests
Engineering
Decorating a Christmas Tree With the Help Of Flaky Tests

Decorating a Christmas Tree With the Help Of Flaky Tests

Alexey Milovidov
Alexey Milovidov
Dec 27, 2021
What’s New in ClickHouse 21.12
Product
What’s New in ClickHouse 21.12

What’s New in ClickHouse 21.12

Alexey Milovidov and Christoph Wurm
Alexey Milovidov and Christoph Wurm
Dec 16, 2021
How to Enable Predictive Capabilities in ClickHouse Databases
Engineering
How to Enable Predictive Capabilities in ClickHouse Databases

How to Enable Predictive Capabilities in ClickHouse Databases

Ilya Yatsishin
Ilya Yatsishin
Dec 14, 2021
Plausible Analytics uses ClickHouse to power their privacy-friendly Google Analytics alternative
Customer stories
Plausible Analytics uses ClickHouse to power their privacy-friendly Google Analytics alternative

Plausible Analytics uses ClickHouse to power their privacy-friendly Google Analytics alternative

Elissa Weve
Elissa Weve
Dec 8, 2021
ClickHouse Moscow Meetup October 19, 2021
Company and culture
ClickHouse Moscow Meetup October 19, 2021

ClickHouse organized an online Meetup on October 19, 2021, hosted by our very own co-founder and CTO, Alexey Milovidov.

Rich Raposa
Rich Raposa
Nov 11, 2021
ClickHouse v21.11 Released
Engineering
ClickHouse v21.11 Released

The 21.11 release includes asynchronous inserts, interactive mode, UDFs, predefined connections, and compression gains.

Rich Raposa
Rich Raposa
Nov 11, 2021
ClickHouse raises a $250M Series B at a $2B valuation...and we are hiring
Company and culture
ClickHouse raises a $250M Series B at a $2B valuation...and we are hiring

Today, we are excited to announce that ClickHouse has raised $250 million in Series B funding at a $2B valuation.

Dorota Szeremeta
Dorota Szeremeta
Oct 28, 2021
ClickHouse v21.10 Released
Engineering
ClickHouse v21.10 Released

In the 21.10 release, we have a wonderful 79 contributors with 1255 commits across 211 pull requests - what an amazing community and we cherish your contributions.

Rich Raposa
Rich Raposa
Oct 14, 2021
Introducing ClickHouse, Inc.
Company and culture
Introducing ClickHouse, Inc.

Today, we're happy to announce ClickHouse, Inc., the new home of ClickHouse

Alexey Milovidov
Alexey Milovidov
Sep 20, 2021
Testing the Performance of ClickHouse
Engineering
Testing the Performance of ClickHouse

One of the main selling points of ClickHouse is that it's very fast, in many cases utilizing the hardware up to the theoretical limits. This speed boils down to a right combination of architectural choices and algorithmic optimizations.

Alexander Kuzmenkov
Alexander Kuzmenkov
Aug 19, 2021
The Tests Are Passing, Why Would I Read The Diff Again?
Engineering
The Tests Are Passing, Why Would I Read The Diff Again?

Code review is one of the few software development techniques that are consistently found to reduce the incidence of defects.

Alexander Kuzmenkov
Alexander Kuzmenkov
Apr 14, 2021
Fuzzing ClickHouse
Engineering
Fuzzing ClickHouse

We are always looking for the ways to improve our test coverage, and this article will describe our recent development in this area — the AST-based query fuzzer.

Alexander Kuzmenkov
Alexander Kuzmenkov
Mar 11, 2021
A journey to io_uring, AIO and modern storage devices
Engineering
A journey to io_uring, AIO and modern storage devices

We performed experiments to find out how different Linux system calls perform for available devices.

Ruslan Savchenko
Ruslan Savchenko
Mar 9, 2021
The ClickHouse Community
Company and culture
The ClickHouse Community

One of the great “features” of ClickHouse is a friendly and welcoming community.

Robert Hodges
Robert Hodges
Dec 10, 2020
Running ClickHouse on an Android phone
Engineering
Running ClickHouse on an Android phone

This is a brief description of my experiments with building ClickHouse on Android.

Alexander Kuzmenkov
Alexander Kuzmenkov
Jul 16, 2020
Five Methods for Database Obfuscation
Engineering
Five Methods for Database Obfuscation

ClickHouse users already know that its biggest advantage is its high-speed processing of analytical queries. But claims like this need to be confirmed with reliable performance testing.

ClickHouse Editor
ClickHouse Editor
Jan 27, 2020
How to speed up LZ4 decompression in ClickHouse?
Engineering
How to speed up LZ4 decompression in ClickHouse?

When you run queries in ClickHouse, you might notice that the profiler often shows the LZ_decompress_fast function near the top. What is going on?

ClickHouse Editor
ClickHouse Editor
Jun 25, 2019
ClickHouse Lecture at Institute of Computing Technology, Chinese Academy of Science on June 11, 2019
Engineering
ClickHouse Lecture at Institute of Computing Technology, Chinese Academy of Science on June 11, 2019

Alexey Milovidov, head of ClickHouse development group at Yandex, has given an open two-part lecture at Institute of Computing Technology, Chinese Academy of Science.

ClickHouse Editor
ClickHouse Editor
Jun 14, 2019
ClickHouse Meetup in Beijing on June 8, 2019
Company and culture
ClickHouse Meetup in Beijing on June 8, 2019

Our 24th ClickHouse Meetup globally and 3rd one in China took place in Beijing on Dragon Boat Festival weekend.

ClickHouse Editor
ClickHouse Editor
Jun 13, 2019
ClickHouse at Percona Live 2019
Company and culture
ClickHouse at Percona Live 2019

This year American episode of Percona Live took place in nice waterfront location in Austin, TX, which welcomed open source database experts with pretty hot weather.

ClickHouse Editor
ClickHouse Editor
Jun 4, 2019
ClickHouse Meetup in San Francisco on June 4, 2019
Company and culture
ClickHouse Meetup in San Francisco on June 4, 2019

23rd ClickHouse Meetup in San Francisco was held in CloudFlare office and co-organized by Altinity.

ClickHouse Editor
ClickHouse Editor
Jun 4, 2019
ClickHouse Meetup in Limassol on May 7, 2019
Company and culture
ClickHouse Meetup in Limassol on May 7, 2019

ClickHouse Meetup in Limassol on May 7, 2019

ClickHouse Editor
ClickHouse Editor
May 14, 2019
Schedule of ClickHouse Meetups in China for 2019
Company and culture
Schedule of ClickHouse Meetups in China for 2019

Schedule of ClickHouse Meetups in China for 2019

ClickHouse Editor
ClickHouse Editor
Apr 18, 2019
Concept: "Cloud" MergeTree Tables
Company and culture
Concept: "Cloud" MergeTree Tables

Concept: "Cloud" MergeTree Tables

ClickHouse Editor
ClickHouse Editor
Nov 23, 2018
ClickHouse at Percona Live Europe 2018
Company and culture
ClickHouse at Percona Live Europe 2018

ClickHouse at Percona Live Europe 2018

ClickHouse Editor
ClickHouse Editor
Nov 18, 2018
ClickHouse Meetup in Amsterdam on November 15, 2018
Company and culture
ClickHouse Meetup in Amsterdam on November 15, 2018

ClickHouse Meetup in Amsterdam on November 15, 2018

ClickHouse Editor
ClickHouse Editor
Nov 15, 2018
ClickHouse Community Meetup in Beijing on October 28, 2018
Company and culture
ClickHouse Community Meetup in Beijing on October 28, 2018

ClickHouse Community Meetup in Beijing on October 28, 2018

ClickHouse Editor
ClickHouse Editor
Nov 12, 2018
ClickHouse at Analysys A10 2018
Company and culture
ClickHouse at Analysys A10 2018

ClickHouse at Analysys A10 2018

ClickHouse Editor
ClickHouse Editor
Nov 4, 2018
Announcing ClickHouse Meetup in Amsterdam on November 15
Company and culture
Announcing ClickHouse Meetup in Amsterdam on November 15

Announcing ClickHouse Meetup in Amsterdam on November 15

ClickHouse Editor
ClickHouse Editor
Oct 17, 2018
ClickHouse Community Meetup in Paris on October 2, 2018
Company and culture
ClickHouse Community Meetup in Paris on October 2, 2018

ClickHouse Community Meetup in Paris on October 2, 2018

ClickHouse Editor
ClickHouse Editor
Oct 9, 2018
ClickHouse Community Meetup in Berlin on July 3, 2018
Company and culture
ClickHouse Community Meetup in Berlin on July 3, 2018

ClickHouse Community Meetup in Berlin on July 3, 2018

ClickHouse Editor
ClickHouse Editor
Jul 5, 2018
Announcing ClickHouse Community Meetup in Berlin on July 3
Company and culture
Announcing ClickHouse Community Meetup in Berlin on July 3

Announcing ClickHouse Community Meetup in Berlin on July 3

ClickHouse Editor
ClickHouse Editor
Jun 25, 2018
ClickHouse Meetup in Madrid on April 2, 2019
Company and culture
ClickHouse Meetup in Madrid on April 2, 2019

ClickHouse Meetup in Madrid on April 2, 2019

ClickHouse Editor
ClickHouse Editor
Apr 11, 2018
ClickHouse Community Meetup in Beijing on January 27, 2018
Company and culture
ClickHouse Community Meetup in Beijing on January 27, 2018

ClickHouse Community Meetup in Beijing on January 27, 2018

ClickHouse Editor
ClickHouse Editor
Feb 8, 2018
Join the ClickHouse Meetup in Berlin
Company and culture
Join the ClickHouse Meetup in Berlin

Join the ClickHouse Meetup in Berlin

ClickHouse Editor
ClickHouse Editor
Oct 19, 2017
ClickHouse Meetup in Berlin, October 5, 2017
Company and culture
ClickHouse Meetup in Berlin, October 5, 2017

ClickHouse Meetup in Berlin, October 5, 2017

ClickHouse Editor
ClickHouse Editor
Oct 5, 2017
ClickHouse at Data@Scale 2017
Company and culture
ClickHouse at [email protected] 2017

ClickHouse at [email protected] 2017

ClickHouse Editor
ClickHouse Editor
Jun 15, 2017
ClickHouse Meetup in Santa Clara on May 4, 2017
Company and culture
ClickHouse Meetup in Santa Clara on May 4, 2017

ClickHouse Meetup in Santa Clara on May 4, 2017

ClickHouse Editor
ClickHouse Editor
May 17, 2017
ClickHouse at Percona Live 2017
Company and culture
ClickHouse at Percona Live 2017

Needless to say that for a relatively new player on the market like ClickHouse, it’s been a great opportunity to spread the word about the technology and how exactly it allows us to perform analytics on petabytes of data in real-time.

ClickHouse Editor
ClickHouse Editor
Apr 28, 2017
Evolution of Data Structures in Yandex.Metrica
Engineering
Evolution of Data Structures in Yandex.Metrica

Yandex.Metrica takes in a stream of data representing events that took place on sites or on apps. Our task is to keep this data and present it in an analyzable form.

ClickHouse Editor
ClickHouse Editor
Dec 13, 2016
How to Update Data in ClickHouse
Product
How to Update Data in ClickHouse

There is no UPDATE or DELETE commands in ClickHouse at the moment. And that’s not because we have some religious believes. ClickHouse is performance-oriented system; and data modifications are hard to store and process optimally in terms of performance

ClickHouse Editor
ClickHouse Editor
Nov 20, 2016
Yandex Opensources ClickHouse
Company and culture
Yandex Opensources ClickHouse

Today analytical DBMS ClickHouse initially developed internally at Yandex, became available to everyone. Source code is published on GitHub under Apache 2.0 license.

ClickHouse Editor
ClickHouse Editor
Jun 15, 2016

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