The Apache Calcite PMC is pleased to announce Apache Calcite release 1.13.0.

This release comes three months after 1.12.0. It includes more than 75 resolved issues, comprising a large number of new features as well as general improvements and bug-fixes.

First, Calcite has been upgraded to use Avatica 1.10.0, which was recently released.

Moreover, Calcite core includes improvements which aim at making it more powerful, stable and robust. In addition to numerous bux-fixes, we have implemented a new materialized view rewriting algorithm and new metadata providers which should prove useful for data processing systems relying on Calcite.

In this release, we have also completed the work to support the MATCH_RECOGNIZE clause used in complex-event processing (CEP).

In addition, more progress has been made for the different adapters. For instance, the Druid adapter now relies on Druid 0.10.0 and it can generate more efficient plans where most of the computation can be pushed to Druid, e.g., using extraction functions.

See the release notes; download the release.