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https://issues.apache.org/jira/browse/HUDI-9586?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davis Zhang resolved HUDI-9586.
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> Validate lookup set types during index lookup [spark query engine]
> ------------------------------------------------------------------
>
> Key: HUDI-9586
> URL: https://issues.apache.org/jira/browse/HUDI-9586
> Project: Apache Hudi
> Issue Type: Bug
> Components: index
> Reporter: Davis Zhang
> Priority: Blocker
> Fix For: 1.1.0
>
>
> context https://issues.apache.org/jira/browse/HUDI-9566
> *Description:*
> On the read path, ensure that the data type of lookup set literals is
> compatible with the SI column’s declared type. Specifically:
> * Allow index lookup only when types matches
> * If incompatible:
> *
> ** *Preferred behavior:* Fallback to full table scan (no index)
> *
> ** *Alternative behavior:* Throw query error
> *Label:* {{{}blocker{}}}, {{{}si{}}}, {{lookup-validation}}
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