The Apache Calcite team is pleased to announce the release of Apache Calcite 1.22.0.
Calcite is a dynamic data management framework. Its cost-based optimizer converts queries, represented in relational algebra, into executable plans. Calcite supports many front-end languages and back-end data engines, and includes an SQL parser and, as a sub-project, the Avatica JDBC driver. This release comes five months after 1.21.0. It includes more than 250 resolved issues, comprising of a few new features as well as general improvements and bug-fixes. It includes support for SQL hints, new functions, a new adapter, and many more bug fixes and improvements. You can start using it in Maven by simply updating your dependency to: <dependency> <groupId>org.apache.calcite</groupId> <artifactId>calcite-core</artifactId> <version>1.22.0</version> </dependency> If you'd like to download the source release, you can find it here: https://calcite.apache.org/downloads/ You can read more about the release (including release notes) here: https://calcite.apache.org/news/2020/03/05/release-1.22.0/ We welcome your help and feedback. For more information on how to report problems, and to get involved, visit the project website at: https://calcite.apache.org/ Thanks to everyone involved! Danny Chan, on behalf of the Apache Calcite Team
