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https://issues.apache.org/jira/browse/FLINK-18202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17247264#comment-17247264
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Jark Wu commented on FLINK-18202:
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Hi [~libenchao], I think we should better to discuss the public APIs before
creating subtasks, i.e. the format identifiers, the format options and default
values. And do we need provide options for users to define a different defualt
value for the null elements in map/array?
> Introduce Protobuf format
> -------------------------
>
> Key: FLINK-18202
> URL: https://issues.apache.org/jira/browse/FLINK-18202
> Project: Flink
> Issue Type: New Feature
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table
> SQL / API
> Reporter: Benchao Li
> Priority: Major
> Attachments: image-2020-06-15-17-18-03-182.png
>
>
> PB[1] is a very famous and wildly used (de)serialization framework. The ML[2]
> also has some discussions about this. It's a useful feature.
> This issue maybe needs some designs, or a FLIP.
> [1] [https://developers.google.com/protocol-buffers]
> [2] [http://apache-flink.147419.n8.nabble.com/Flink-SQL-UDF-td3725.html]
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