Hi Kant, I suppose you refer to the stream join in SQL/Table API since the outer join for windowed-streams can always be achieved with the `JoinFunction` in DataStream API.
There are two kinds of stream joins, namely, the time-windowed join and the non-windowed join in Flink SQL/Table API [1, 2]. The time-windowed outer join has been supported since version 1.5 and the non-windowed outer join is still work in progress. Hope that helps. Best, Xingcan [1] https://ci.apache.org/projects/flink/flink-docs-master/dev/table/tableApi.html#joins <https://ci.apache.org/projects/flink/flink-docs-master/dev/table/tableApi.html#joins> [2] https://ci.apache.org/projects/flink/flink-docs-master/dev/table/sql.html#joins <https://ci.apache.org/projects/flink/flink-docs-master/dev/table/sql.html#joins> > On 7 Mar 2018, at 12:45 AM, kant kodali <kanth...@gmail.com> wrote: > > Hi All, > > Does Flink support stream-stream outer joins in the latest version? > > Thanks!
