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ASF GitHub Bot commented on FLINK-8428: --------------------------------------- Github user twalthr commented on a diff in the pull request: https://github.com/apache/flink/pull/5327#discussion_r188532278 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamRel.scala --- @@ -53,4 +53,8 @@ trait DataStreamRel extends FlinkRelNode { */ def consumesRetractions: Boolean = false + /** + * Whether the [[DataStreamRel]] produces retraction messages. + */ + def producesRetractions: Boolean = false --- End diff -- Thanks for the explanation. > Implement stream-stream non-window left outer join > -------------------------------------------------- > > Key: FLINK-8428 > URL: https://issues.apache.org/jira/browse/FLINK-8428 > Project: Flink > Issue Type: Sub-task > Components: Table API & SQL > Reporter: Hequn Cheng > Assignee: Hequn Cheng > Priority: Major > > Implement stream-stream non-window left outer join for sql/table-api. A > simple design doc can be foundĀ > [here|https://docs.google.com/document/d/1u7bJHeEBP_hFhi8Jm4oT3FqQDOm2pJDqCtq1U1WMHDo/edit?usp=sharing] -- This message was sent by Atlassian JIRA (v7.6.3#76005)