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https://issues.apache.org/jira/browse/FLINK-31207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17814494#comment-17814494
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Martijn Visser commented on FLINK-31207:
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And I also think this requires a FLIP
> Supports high order function like other engine
> ----------------------------------------------
>
> Key: FLINK-31207
> URL: https://issues.apache.org/jira/browse/FLINK-31207
> Project: Flink
> Issue Type: New Feature
> Reporter: Jacky Lau
> Priority: Major
>
> spark [https://spark.apache.org/docs/latest/api/sql/index.html#transform]
> transform/transform_keys/transform_values
> after calcite https://issues.apache.org/jira/browse/CALCITE-3679s upports
> high order functions, we should supports many high order funcsions like
> spark/presto
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