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Posted to issues@flink.apache.org by "Shengkai Fang (Jira)" <ji...@apache.org> on 2020/11/23 07:17:00 UTC

[jira] [Comment Edited] (FLINK-20281) Window aggregation supports changelog stream input

    [ https://issues.apache.org/jira/browse/FLINK-20281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17237160#comment-17237160 ] 

Shengkai Fang edited comment on FLINK-20281 at 11/23/20, 7:16 AM:
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We also can't do window agg on upsert-kafka. Because upsert-kafka is also a changelog stream. 


was (Author: fsk119):
We are also can't do window agg on upsert-kafka. Because upsert-kafka is also a changelog stream. 

> Window aggregation supports changelog stream input
> --------------------------------------------------
>
>                 Key: FLINK-20281
>                 URL: https://issues.apache.org/jira/browse/FLINK-20281
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table SQL / Planner, Table SQL / Runtime
>            Reporter: Jark Wu
>            Priority: Major
>
> Currently, window aggregation doesn't support to consume a changelog stream. This makes it impossible to do a window aggregation on changelog sources (e.g. Kafka with Debezium format, or upsert-kafka, or mysql-cdc). 



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