Looks great! Thanks Stamatis~~ Best, Chunwei
On Fri, Jul 3, 2020 at 9:08 AM Julian Hyde <[email protected]> wrote: > Looks good. Thanks! > > I regard the report as for the quarter (April 1st - June 30th), so the > Avatica-go release should rightly go into the Summer report. > > Julian > > > On Jul 2, 2020, at 4:31 AM, Stamatis Zampetakis <[email protected]> > wrote: > > > > Attached below is a draft of this month's board report. I plan to > submit it > > on July 7. 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 50 committers and 22 PMC members in this project. > > The Committer-to-PMC ratio is roughly 7:3. > > > > Community changes, past quarter: > > - No new PMC members. Last addition was Haisheng Yuan on 2019-11-11. > > - Forward Xu was added as committer on 2020-04-28 > > - Xing Jin was added as committer on 2020-04-28 > > - Vineet Garg was added as committer on 2020-04-24 > > - Yanlin Wang was added as committer on 2020-04-28 > > > > ## Project Activity: > > Avatica 1.17.0 was released on 2020-06-22. It is a small routine release > > that includes a > > few dependency updates and bug fixes. > > > > [Include Avatica Go if it is released on time] > > Avatica Go 5.0.0 was released on 2020-07-XX. It is a major release of > > Avatica Go with a number of improvements and a breaking change affecting > > connection metadata. Worth mentioning the support for batching query > string > > parameters in the DSN allowing updates to the server to be executed once > > Close() is called on the prepared statement. > > > > Calcite 1.23.0 was released on 2020-05-23, including more than 100 > resolved > > issues. It includes many new futures such as an SQL dialect for > ClickHouse > > and SESSION/HOP table functions (particularly useful for queries on > > streams), along with significant improvements to the optimizer reducing > > optimization latency up to a factor of 50x for some complex queries. > > > > [Do we have any talks or new adopters to put in the report?] > > > > ## Community Health: > > > > The overall activity on the mailing lists has increased (-7% dev@, +27% > > issues@) with many interesting topics some very important for the > future of > > the project such as the redesign of the optimizer, modelling indexes, > and a > > big refactoring of the ruleset. > > > > Regarding opened/resolved issues the things are rather balanced. We had a > > slight decrease in new issues (-6% JIRA, -13% GitHub) counterbalanced by > a > > small increase in closed issues (+14% JIRA, +4% GitHub). Since we have a > > large > > backlog of PRs, the increased ratio of closed PRs/issues is a good sign. > > > > Although the number of commits has slightly decreased in the past quarter > > (-16%) we had more code contributors (+17%) among them some new faces > which > > is > > very promising for the future of the project. >
