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https://issues.apache.org/jira/browse/FLINK-6090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15967770#comment-15967770
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ASF GitHub Bot commented on FLINK-6090:
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Github user shaoxuan-wang commented on the issue:
https://github.com/apache/flink/pull/3696
@fhueske, thanks for the review and valuable comments.
Yes, we'd better add the attributes (which provide information for deriving
ACCMode) inside the DataStreamRel interface, such that the code will be much
clean and easy to be understood.
Thanks,
Shaoxuan
> Add RetractionRule at the stage of decoration
> ---------------------------------------------
>
> Key: FLINK-6090
> URL: https://issues.apache.org/jira/browse/FLINK-6090
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Shaoxuan Wang
> Assignee: Hequn Cheng
>
> Implement optimizer for retraction:
> 1.Add RetractionRule at the stage of decoration，which can derive the
> replace table/append table, NeedRetraction property.
> 2.Match the NeedRetraction and replace table, mark the accumulating mode
>
> When this task is finished, we can turn on retraction for different operators
> according to accumulating mode.
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