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Posted to issues@flink.apache.org by "CaoZhen (Jira)" <ji...@apache.org> on 2020/08/07 09:15:00 UTC

[jira] [Commented] (FLINK-18824) Support serialization for canal-json format

    [ https://issues.apache.org/jira/browse/FLINK-18824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17173007#comment-17173007 ] 

CaoZhen commented on FLINK-18824:
---------------------------------

Hi, [~jark].  I want to develop this subtask, can you assign it to me?

> Support serialization for canal-json format
> -------------------------------------------
>
>                 Key: FLINK-18824
>                 URL: https://issues.apache.org/jira/browse/FLINK-18824
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table SQL / Ecosystem
>            Reporter: Jark Wu
>            Priority: Major
>
> Currently, canal-json format only support deserialization, but not support serialization. This is not convenient for users to writing changelogs to an message queue. 
> The serialization for canal-json can follow the json strcuture of Canal, but considering currently Flink can't combine UPDATE_BEFORE and UPDATE_AFTER into a single UPDATE message. We can encode UPDATE_BEFORE and UDPATE_AFTER as DELETE and INSERT canal messages. 



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