The Apache Calcite team is pleased to announce the release of Apache Calcite 1.39.0.
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 5 months after 1.38.0, contains contributions from 45 contributors, and resolves 209 issues. Highlights include the support of the VARIANT and UUID data types, the support of checked arithmetic, the addition of an optimal join enumeration algorithm based on dynamic programming (DPhyp), new operators and data type support in Arrow adapter, enhanced SQL compatibility with additional functions across Oracle, PostgreSQL, Hive, Spark, and MSSQL You can start using it in Maven by simply updating your dependency to: <dependency> <groupId>org.apache.calcite</groupId> <artifactId>calcite-core</artifactId> <version>1.39.0</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/2025/03/16/release-1.39.0/ 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! Stamatis Zampetakis, on behalf of the Apache Calcite Team
