Being that it has been roughly three years since we last compared ClickHouse to Amazon Redshift, we thought it was time for an update. Using the same popular benchmarking dataset of NYC taxi trips data over multiple years, current size…
HAPPY BIRTHDAY, ClickHouse! In honor of ClickHouse turning 4, we have prepared several presents for ClickHouse users and ClickHouse itself: new releases of ClickHouse operator for Kubernetes, the Grafana ClickHouse Datasource and last but not least, the new Altinity Stable…
ClickHouse external dictionaries are a “ClickHouse way” to handle multi-dimensional schema. ClickHouse Dictionaries Explained was the very first article in the Altinity blog three years ago. ClickHouse has improved significantly since then, and dictionaries have achieved a new level of…
We are delighted to announce that Altinity Stable Release is updated to 19.16.17.85. The release includes several bug fixes not present in the previous 19.16.14.65 release.
Mutable data is generally unwelcome in OLAP databases. ClickHouse is no exception to the rule. Like some other OLAP products, ClickHouse did not even support updates originally. Later on, updates were added, but like many other things they were added…
A common use case in time series applications is to get the measurement value at a given point of time. For example, if there is a stream of measurements, one often needs to query the measurement as of current time…
We are delighted to announce that Altinity Stable Release is updated to 19.16.14.65. The release includes several important bug fixes not present in the previous 19.16.12.49, and one compatibility fix that is important for future upgrades.
See how ClickHouse delivers faster query performance on 500 billion rows of data compared to ScyllaDB, leveraging an Intel NUC mini PC, advanced compression, and materialized views.
Altinity is glad to announce the certification of 19.13.7.57 ClickHouse release as Altinity Stable. This is a minor upgrade over the previous 19.11.8 release, but we recommend users install it before moving to more recent releases due to a few…
CoreOS introduced operators for Kubernetes in 2016. A Kubernetes Operator is an application that integrates into Kuberentes and manages other applications. It significantly simplifies deployment and management of cloud native apps by leveraging application specific operational knowledge. Since then operators…
It is already more than 3 years since ClickHouse surprisingly popped up from inside the Yandex labs and moved to open source. Since then it grew up from an ugly duckling, that was sometimes not that easy to deal with,…
The recent Moscow ClickHouse meetup was quite a big event, as expected. ClickHouse is very popular in Russia and usage has penetrated widely among companies here. 450 people registered, and around 200 showed up at the Yandex conference hall on…
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