+1. 

Thank you for mentioning my paper. 

Julian

> On Jul 3, 2024, at 5:19 AM, Francis Chuang <francischu...@apache.org> wrote:
> 
> +1, great work, Benchao!
> 
>> On 3/07/2024 10:09 pm, Benchao Li wrote:
>> Hello,
>> Below you can find a draft of this quarter's board report. I plan to
>> submit the final version next Tuesday (Jul 9, 2024).
>> 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.
>> ## Project Status:
>> There are no issues requiring board attention.
>> ## Membership Data:
>> Apache Calcite was founded 2015-10-22 (9 years ago)
>> There are currently 74 committers and 28 PMC members in this project.
>> The Committer-to-PMC ratio is roughly 5:2.
>> Community changes, past quarter:
>> - No new PMC members. Last addition was Sergey Nuyanzin on 2024-03-05.
>> - No new committers. Last addition was Hongyu Guo on 2023-11-03.
>> ## Project Activity:
>> Apache Calcite Avatica 1.25.0 was released on 2024-04-05. It is a routine
>> release featuring support for JDK 21, Gradle 8.5 and several bug fixes.
>> Apache Calcite 1.37.0 was released on 2024-05-04. It contains contributions
>> from 46 contributors, and resolves 138 issues. It introduces Apache Arrow
>> adapter and StarRocks dialect, adds support for lambda expressions in SQL and
>> ‘Must-filter’ columns. For table function calls it is now possible to use 
>> them
>> without TABLE() wrapper in FROM. Furthermore, there is support for optional
>> FORMAT of CAST operator from SQL:2016 and more than 15 new SQL functions in
>> various libraries such as BigQuery, PostgreSQL and Spark.
>> Besides releases, it's worth to mention that Julian Hyde presented "Measures
>> in SQL" both in SF Distributed Systems Meetup in downtown SF on Wednesday May
>> 22nd, and SIGMOD 2024 conference in Santiago, Chile, which has been
>> implemented in Calcite.
>> ## Community Health:
>> The community maintains a healthy status, previously it's super healthy. The
>> reason is that we did not invite new committers for more than 6 months. There
>> are a few new faces in the community, hopefully we'll invite new committers 
>> in
>> the near future.
>> Most of the statistics slightly decreased compared to last quarter (dev@
>> decreased by 39%, issues@ decreased by 22%, commits decreased by 31%, code
>> contributors decreased by 32%, active reviewers decreased by 36.8%). The
>> reason I can see is there is less activity in supporting new SQL functions in
>> various libraries recently, which is much more active in previous quarters.
>> The number of non-committer (contributor) commits per month:
>> +------+-------+---------------------+
>> | year | month | contributor_commits |
>> +------+-------+---------------------+
>> | 2024 |     4 |                  13 |
>> | 2024 |     5 |                  11 |
>> | 2024 |     6 |                  15 |
>> +------+-------+---------------------+
>> The number of active reviewers per month:
>> +------+-------+------------------+
>> | year | month | active_reviewers |
>> +------+-------+------------------+
>> | 2024 |     4 |                5 |
>> | 2024 |     5 |                4 |
>> | 2024 |     6 |                3 |
>> +------+-------+------------------+
>> Top reviewers in the last 3 months:
>> +----------------------------------+---------+
>> | committer                        | reviews |
>> +----------------------------------+---------+
>> | Mihai Budiu <mbu...@feldera.com> |      19 |
>> | NobiGo <nobigo...@gmail.com>     |       9 |
>> | Julian Hyde <jh...@apache.org>   |       3 |
>> +----------------------------------+---------+
>> Best,
>> Benchao Li

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