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https://issues.apache.org/jira/browse/FLINK-4460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900755#comment-15900755
]
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_r104847407
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamGraph.java
---
@@ -333,32 +356,41 @@ public void addEdge(Integer upStreamVertexID, Integer
downStreamVertexID, int ty
downStreamVertexID,
typeNumber,
null,
- new ArrayList<String>());
+ new ArrayList<String>(), null);
}
private void addEdgeInternal(Integer upStreamVertexID,
Integer downStreamVertexID,
int typeNumber,
StreamPartitioner<?> partitioner,
- List<String> outputNames) {
-
+ List<String> outputNames,
+ OutputTag outputTag) {
- if (virtualSelectNodes.containsKey(upStreamVertexID)) {
+ if (virtualOutputNodes.containsKey(upStreamVertexID)) {
+ int virtualId = upStreamVertexID;
+ upStreamVertexID = virtualOutputNodes.get(virtualId).f0;
+ if (outputTag == null) {
+ // selections that happen downstream override
earlier selections
--- End diff --
may consider call out this behavior in `getSideOutput` comments
> 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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