There are several JIRA issues for row windows, some of them might be assigned. I haven't seen pull requests and nothing to merged yet.
I would ask on the JIRA issue of the current status. Best, Fabian 2017-01-05 12:00 GMT+01:00 Hongyuhong <hongyuh...@huawei.com>: > Hi Fabian, > > > > Thanks for the reply. > > As you noticed, row windows are already supported by Calcite and FLIP-11 > has planned, > > Can you tell something about the progress of the row windows in Table API? > > > > Regards. > > Yuhong > > > > > > > > > > *发件人:* Fabian Hueske [mailto:fhue...@gmail.com] > *发送时间:* 2017年1月5日 17:43 > *收件人:* user@flink.apache.org > *主题:* Re: Som question about Flink stream sql > > > > Hi Yuhong, > > as you noticed, FLIP-11 is about the window operations on the Table API > and does not include SQL. > > The reason is that the Table API is completely Flink domain, i.e., we can > design and implement the API. For SQL we have a dependency on Calcite. > > You are right, that Calcite's JIRA issue for group windows [1] seems to be > stale. I don't have more information on that. You could ping there and ask > what the status is. > > Row windows are already supported by Calcite (SQL's OVER and WINDOW > clauses), so these could be implemented for SQL as well. > > Maybe it's even easier to start from the SQL side and add the Table API > later to ensure a compatible compilation process. > > Best, Fabian > > > > > > 2017-01-05 4:40 GMT+01:00 Hongyuhong <hongyuh...@huawei.com>: > > Hi, > > We are currently exploring on Flink streamsql , > > And I see the group-window has been implemented in Table API, and > row-window is also planning in FLIP-11. It seems that row-window grammar is > more similar to calcite over clause. > > I’m curious about the detail plan and roadmap of stream sql, cause > FLIP-11 just mentioned Table API. > > And is that streamsql priority implement row-window? Or if group-window is > considered, what is the status on calcite integration? > > The issue on calcite jira was raised in August, what’s the status right > now? > > Thanks in advance! > > > > Regards > > Yuhong > > > > > > > > >
