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https://issues.apache.org/jira/browse/FLINK-35272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17849224#comment-17849224
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Leonard Xu commented on FLINK-35272:
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Thanks [~xiqian_yu] for taking this ticket, assigned it to you!
> Pipeline Transform job supports omitting / renaming calculation column
> ----------------------------------------------------------------------
>
> Key: FLINK-35272
> URL: https://issues.apache.org/jira/browse/FLINK-35272
> Project: Flink
> Issue Type: Improvement
> Components: Flink CDC
> Affects Versions: 3.1.0
> Reporter: yux
> Assignee: yux
> Priority: Major
> Labels: pull-request-available
>
> Currently, pipeline transform rules require all columns used by expression
> calculation must be present in final projected schema, and shall not be
> renamed or omitted.
>
> The reason behind this is any column not directly present in projection rules
> will be filtered out in the PreProjection step, and then the PostProjection
> process could not find those non-present but indirectly depended columns.
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