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https://issues.apache.org/jira/browse/FLINK-9850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549001#comment-16549001
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ASF GitHub Bot commented on FLINK-9850:
---------------------------------------
Github user tison1 commented on a diff in the pull request:
https://github.com/apache/flink/pull/6367#discussion_r203644208
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/sink/PrintSinkFunction.java
---
@@ -40,6 +40,8 @@
private boolean target;
private transient PrintStream stream;
private transient String prefix;
+ private String sinkIdentifier;
+ private String completedPrefix;
--- End diff --
if `prefix` is `transient`, why not `completedPrefix`?
> Add a string to the print method to identify output for DataStream
> ------------------------------------------------------------------
>
> Key: FLINK-9850
> URL: https://issues.apache.org/jira/browse/FLINK-9850
> Project: Flink
> Issue Type: New Feature
> Components: DataStream API
> Reporter: Hequn Cheng
> Assignee: vinoyang
> Priority: Major
> Labels: pull-request-available
>
> The output of the print method of {[DataSet}} allows the user to supply a
> String to identify the output(see
> [FLINK-1486|https://issues.apache.org/jira/browse/FLINK-1486]). But
> {[DataStream}} doesn't support now. It is valuable to add this feature for
> {{DataStream}}
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