I think the point is that some elements are drawn on the window boundary. So it is not clear to which window they would belong.
2017-07-13 12:03 GMT+02:00 Aljoscha Krettek <aljos...@apache.org>: > Hi, > > How do you mean? The windows in the illustration are not overlapping. > > Iām very happy about suggestions for improving this, though, if anyone has > one. š > > Best, > Aljoscha > > On 13. Jul 2017, at 11:43, jincheng sun <sunjincheng...@gmail.com> > wrote: > > > > Hi guys, > > Feel confused for the illustration of tumbling window, as follows: > > > > > > āhttps://ci.apache.org/projects/flink/flink-docs- > release-1.3/dev/windows.html#tumbling-windows > <x-msg://82/%E2%80%8Bhttps://ci.apache.org/projects/flink/ > flink-docs-release-1.3/dev/windows.html#tumbling-windows> > > https://ci.apache.org/projects/flink/flink-docs- > release-1.3/fig/tumbling-windows.svg <https://ci.apache.org/ > projects/flink/flink-docs-release-1.3/fig/tumbling-windows.svg> > > > > The Tumbling windows have a fiexd size and do not overlap, i,e., > every element should be in one window. > > So, The illustration above may be confused flink user. > > > > What do you think? Welcome anybody to feedback. > > > > Thanks, > > Jincheng > > > >