Hi Jark, Thanks for bringing up this discussion and the detailed design doc. This is definitely a critical feature for streaming SQL jobs. I have left a few comments in the design doc.
Thanks, Dian > 在 2019年9月6日，上午11:48，Forward Xu <forwardxu...@gmail.com> 写道： > > Thanks Jark for this topic, This will be very useful. > > > Best, > > ForwardXu > > Danny Chan <yuzhao....@gmail.com> 于2019年9月6日周五 上午11:26写道： > >> Thanks Jark for bring up this topic, this is definitely an import feature >> for the SQL, especially the DDL users. >> >> I would spend some time to review this design doc, really thanks. >> >> Best, >> Danny Chan >> 在 2019年9月6日 +0800 AM11:19，Jark Wu <imj...@gmail.com>，写道： >>> Hi everyone, >>> >>> I would like to start discussion about how to support time attribute in >> SQL >>> DDL. >>> In Flink 1.9, we already introduced a basic SQL DDL to create a table. >>> However, it doesn't support to define time attributes. This makes users >>> can't >>> apply window operations on the tables created by DDL which is a bad >>> experience. >>> >>> In FLIP-66, we propose a syntax for watermark to define rowtime attribute >>> and propose to use computed column syntax to define proctime attribute. >>> But computed column is another big topic and should deserve a separate >>> FLIP. >>> If we have a consensus on the computed column approach, we will start >>> computed column FLIP soon. >>> >>> FLIP-66: >>> >> https://docs.google.com/document/d/1-SecocBqzUh7zY6HBYcfMlG_0z-JAcuZkCvsmN3LrOw/edit# >>> >>> Thanks for any feedback! >>> >>> Best, >>> Jark >>
