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https://issues.apache.org/jira/browse/HUDI-8667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17911234#comment-17911234
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Y Ethan Guo commented on HUDI-8667:
-----------------------------------
Once we do HUDI-8682 to simplify the precombine and ordering field value
handling, the constraint mentioned here is not necessary since we won't support
type promotion of precombine field and avoid any logic around type casting the
precombine/ordering values.
> Ensure precombine/ordering fields can only be scalar
> ----------------------------------------------------
>
> Key: HUDI-8667
> URL: https://issues.apache.org/jira/browse/HUDI-8667
> Project: Apache Hudi
> Issue Type: Sub-task
> Reporter: Lin Liu
> Assignee: Lin Liu
> Priority: Blocker
> Fix For: 1.0.1
>
>
> When we using event time ordering, if the customer chooses a column in type
> as `string` or other complex data types, Hudi will fail.
> But we can simplify the logic by ensuring it works by using scalar columns.
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