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https://issues.apache.org/jira/browse/FLINK-28723?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shengkai Fang updated FLINK-28723:
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Summary: Fix json format failed to serialize the MapData when its key is
not STRING (was: Fix json format to serialize the MapData when its key is not
STRING )
> Fix json format failed to serialize the MapData when its key is not STRING
> ---------------------------------------------------------------------------
>
> Key: FLINK-28723
> URL: https://issues.apache.org/jira/browse/FLINK-28723
> Project: Flink
> Issue Type: Sub-task
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
> Reporter: Shengkai Fang
> Priority: Major
>
> Currently, the JSON format only supports serializing the Map when its key is
> STRING. We may convert the key to a JSON string. For example, we can convert
> the `MAP<ARRAY<INT>, ARRAY<INT>>` to the following string.
> {code:java}
> {
> "[1, 2, 3]": [
> 1,
> 2,
> 3
> ]
> }
> {code}
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