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https://issues.apache.org/jira/browse/FLINK-20773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17260273#comment-17260273
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Jark Wu commented on FLINK-20773:
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After an offline discussion with [~xiaozilong], we both think that we don't
need to introduce an option for this feature. We can enable to allow unescaped
control chars by default, befcause it doesn' have side effect.
> Support to parse unescaped control chars in string node
> --------------------------------------------------------
>
> Key: FLINK-20773
> URL: https://issues.apache.org/jira/browse/FLINK-20773
> Project: Flink
> Issue Type: Improvement
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
> Affects Versions: 1.12.0
> Reporter: xiaozilong
> Assignee: xiaozilong
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.13.0
>
> Attachments: image-2020-12-25-20-21-50-637.png
>
>
> Can we add an option `allow-unescaped-control-chars` for json format because
> of it will throw exception when exist illegal unquoted characters in the data.
> !image-2020-12-25-20-21-50-637.png!
>
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