Attached below is a draft of this month's board report. I plan to submit it on April 6. Please let me know if you have any additions or corrections.
## Description: Apache Calcite is a highly customizable framework for parsing and planning queries on data in a wide variety of formats. It allows database-like access, and in particular a SQL interface and advanced query optimization, for data not residing in a traditional database. Avatica is a sub-project within Calcite and provides a framework for building local and remote JDBC and ODBC database drivers. Avatica has an independent release schedule and its own repository. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Calcite was founded 2015-10-22 (4 years ago) There are currently 46 committers and 22 PMC members in this project. The Committer-to-PMC ratio is roughly 2:1. Community changes, past quarter: - No new PMC members. Last addition was Haisheng Yuan on 2019-11-11. - Feng Zhu was added as committer on 2020-02-29 ## Project Activity: Avatica 1.16.0 was released in the middle of December, including numerous bug fixes and security improvements while the build system has been migrated from Maven to gradle. Calcite 1.22.0 was released at the beginning of March, including more than 250 resolved issues including long-awaited features such as support of SQL hints, important bug fixes in the core of the query planner, and many changes in build and test infrastructure. This release was the biggest in the history of the project and one of the most complicated to pull out due to the big number of contributions. An introductory talk about query planning and Calcite was given at the university of Cergy-Pontoise, Paris, France, in March. The audience was not aware of the existence of the project which shows that we should organize such events more often, at least in Europe, if we want to expand our community. [Do we have something else to add here?] Finally, we were informed that the SuperSQL project by Tencent uses Calcite in order to provide a unified entrance to various data platforms such as RDBMS, ElasticSearch, Hive, Flink, Spark, Presto, ClickHouse, etc. ## Community Health: Activity levels on mailing lists (-8%), git (-24%) and JIRA (opened -20%, closed -30%) have decreased in the first quarter of 2020. Most of the big changes that started during the last quarter of 2019 (and initiated a lot of activity) have been finalized and incorporated in the release of Calcite 1.22.0, making things calmer in the community. The big decrease of closed issues in JIRA may be explained by the frequency of releases that have slightly dropped. To the above it is worth adding the period of holidays in December and January that in general slows things down. Following the decreased activity in the lists, git, and JIRA it is normal to see the activity rates on pull requests drop (-20% opened, -31% closed) more or less for the same reasons. Although our backlog keeps increasing (~174 open pullvrequests), the community is very reactive commenting and reviewing almost every contribution.
