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https://issues.apache.org/jira/browse/FLINK-11967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16802348#comment-16802348
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Dian Fu commented on FLINK-11967:
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Hi [~sunjincheng121], I have not started the work yet. Feel free to take it. :)
> Add Column Operators/Operations
> -------------------------------
>
> Key: FLINK-11967
> URL: https://issues.apache.org/jira/browse/FLINK-11967
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: sunjincheng
> Priority: Major
>
> In this Jira will add column operators/operations as follows:
> 1) Table(schema) operators
> * Add columns
> * Replace columns
> * Drop columns
> * Rename columns
> 2）Fine-grained column/row operations
> * Column selection
> * Row package and flatten
> See [google
> doc|https://docs.google.com/document/d/1tryl6swt1K1pw7yvv5pdvFXSxfrBZ3_OkOObymis2ck/edit],
> And I also have done some
> [prototype|https://github.com/sunjincheng121/flink/pull/94/files]
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