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https://issues.apache.org/jira/browse/FLINK-16043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17036273#comment-17036273
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Timo Walther commented on FLINK-16043:
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If this fixes a bug, feel free to open a PR with a test reproducing the issue.
> Support non-BMP Unicode for JsonRowSerializationSchema
> ------------------------------------------------------
>
> Key: FLINK-16043
> URL: https://issues.apache.org/jira/browse/FLINK-16043
> Project: Flink
> Issue Type: Improvement
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
> Affects Versions: 1.10.0
> Reporter: Benchao Li
> Priority: Major
>
> This is a known issue for jackson:
> [https://github.com/FasterXML/jackson-core/issues/223]
> You can see more details:
> [https://github.com/FasterXML/jackson-core/blob/master/src/main/java/com/fasterxml/jackson/core/json/UTF8JsonGenerator.java#L2105]
>
> And I also encountered this issue in my production environment. I've figured
> out a solution to solve this issue. Java's String.getBytes() can deal with
> UTF-8 encoding well. So we can do it like this:
> {{mapper.writeValueAsString(node).getBytes()}} instead of
> {{mapper.writeValueAsBytes(node)}}
> cc [~jark] [~twalthr]
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