[jira] [Updated] (FLINK-31391) Introduce lookup changelog producer

["Jingsong Lee (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-31391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jingsong Lee updated FLINK-31391:
---------------------------------
    Description: 
Currently, only full-compaction can produce changelog, some merge-engine must have changelog producing, for example, partial-update and aggregation. But full-compaction is very heavy, write amplification is big huge...

We should introduce a new changelog producer, supports lower latency to produce changelog.

 

POC: https://github.com/apache/flink-table-store/pull/590

  was:
Currently, only full-compaction can produce changelog, some merge-engine must have changelog producing, for example, partial-update and aggregation. But full-compaction is very heavy, write amplification is big huge...

We should introduce a new changelog producer, supports lower latency to produce changelog.


> Introduce lookup changelog producer
> -----------------------------------
>
>                 Key: FLINK-31391
>                 URL: https://issues.apache.org/jira/browse/FLINK-31391
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table Store
>            Reporter: Jingsong Lee
>            Assignee: Jingsong Lee
>            Priority: Major
>             Fix For: table-store-0.4.0
>
>
> Currently, only full-compaction can produce changelog, some merge-engine must have changelog producing, for example, partial-update and aggregation. But full-compaction is very heavy, write amplification is big huge...
> We should introduce a new changelog producer, supports lower latency to produce changelog.
>  
> POC: https://github.com/apache/flink-table-store/pull/590



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