[jira] [Updated] (FLINK-11569) Row type does not serialize in to readable format when invoke "toString" method

["Flink Jira Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-11569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Flink Jira Bot updated FLINK-11569:
-----------------------------------
    Labels: auto-unassigned pull-request-available stale-major  (was: auto-unassigned pull-request-available)

I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help the community manage its development. I see this issues has been marked as Major but is unassigned and neither itself nor its Sub-Tasks have been updated for 30 days. I have gone ahead and added a "stale-major" to the issue". If this ticket is a Major, please either assign yourself or give an update. Afterwards, please remove the label or in 7 days the issue will be deprioritized.


> 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: API / Type Serialization System
>            Reporter: Rong Rong
>            Priority: Major
>              Labels: auto-unassigned, pull-request-available, stale-major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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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