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https://issues.apache.org/jira/browse/FLINK-11569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16775409#comment-16775409
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Rong Rong commented on FLINK-11569:
-----------------------------------
agree this will result in many test fixes, and not just limited to
flink-tables. I will try to dig deeper and see if there's anything
fundamentally problematic other than test changes. Thanks for the comment and
suggestions [~fhueske] [~twalthr] !
> Row type does not serialize in to readable format when invoke "toString"
> method
> -------------------------------------------------------------------------------
>
> Key: FLINK-11569
> URL: https://issues.apache.org/jira/browse/FLINK-11569
> Project: Flink
> Issue Type: Bug
> Components: Type Serialization System
> Reporter: Rong Rong
> Assignee: Rong Rong
> Priority: Major
>
> Seems like the "toString" method for Row type is only concatenating all
> fields using COMMA ",". However it does not wrap the entire Row in some type
> of encapsulation, for example "()". This results in nested Row being
> serialized as if they are all in one level.
> For example:
> {code:java}
> Row.of("a", 1, Row.of("b", 2))
> {code}
> is printed out as
> {code:java}
> "a",1,"b",2
> {code}
> Problematic piece of code can be found here:
> [https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/types/Row.java#L87]
> New changes should be simple to have a dedicated wrapper for the "row"
> stringify format, something like:
> {code:java}
> ("a",1,"b",2)
> {code}
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