ClickHouse Newsletter May 2022: Explain Statement – Query Optimization

ClickHouse has launched its private preview phase of the ClickHouse Cloud service, inviting users to join and provide feedback on the service before it is opened to the public later this year. The company also released ClickHouse 22.4, which includes new features such as transactions, Keeper load balancing, table metadata caching, Kafka metrics, gap filling, last day of month support for date functions, and H3 geospatial indexing system support. Additionally, ClickHouse has released new documentation pages with a revamped navigation structure and content, including guides on connecting to Grafana, Metabase, Superset, and Tableau, as well as user guides on setting up ClickHouse Keeper and improving query performance using data skipping indexes and sparse primary indexes. Upcoming events include the release webinar for ClickHouse 22.5, ClickHouse Americas Virtual Meetup, and ClickHouse EMEA Virtual Meetup.