The Apache Calcite team is pleased to announce the release of Apache
Calcite 1.13.0.

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 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. Among others, it includes the
upgrade to Avatica 1.10.0, a new materialized view rewriting algorithm,
extensions for streaming queries, improvements for the Druid adapter,
and bug-fixes and general improvements for query planning.

You can start using it in Maven by simply updating your dependency to:

  <dependency>
    <groupId>org.apache.calcite</groupId>
    <artifactId>calcite-core</artifactId>
    <version>1.13.0</version>
  </dependency>

If you'd like to download the source release, you can find it here:

  http://www.apache.org/dyn/closer.cgi/calcite/apache-calcite-1.13.0/

You can read more about the release (including release notes) here:

  http://calcite.apache.org/news/2017/06/26/release-1.13.0/

We welcome your help and feedback. For more information on how to
report problems, and to get involved, visit the project website at:

   http://calcite.apache.org/

Thanks to everyone involved!

Jesus Camacho Rodriguez, on behalf of the Apache Calcite Team


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