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https://issues.apache.org/jira/browse/FLINK-4460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900757#comment-15900757
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ASF GitHub Bot commented on FLINK-4460:
---------------------------------------
Github user chenqin commented on a diff in the pull request:
https://github.com/apache/flink/pull/3484#discussion_r104847005
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamGraph.java
---
@@ -85,6 +86,7 @@
private Set<Integer> sources;
private Set<Integer> sinks;
private Map<Integer, Tuple2<Integer, List<String>>> virtualSelectNodes;
+ private Map<Integer, Tuple2<Integer, OutputTag>> virtualOutputNodes;
--- End diff --
We might consider use `addVirtualSideOutputNode` and
`virtualSideOutputNodes`. Unless we want to refactor move away from current
assumption `<IN>operator<OUT>` to `<<tag1,IN1>...<tagX,INX> operator
<<taga,OUTa>...<tagx,OUTX>`
> Side Outputs in Flink
> ---------------------
>
> Key: FLINK-4460
> URL: https://issues.apache.org/jira/browse/FLINK-4460
> Project: Flink
> Issue Type: New Feature
> Components: Core, DataStream API
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Chen Qin
> Assignee: Chen Qin
> Labels: latearrivingevents, sideoutput
>
> https://docs.google.com/document/d/1vg1gpR8JL4dM07Yu4NyerQhhVvBlde5qdqnuJv4LcV4/edit?usp=sharing
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