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https://issues.apache.org/jira/browse/HUDI-7582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sagar Sumit updated HUDI-7582:
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Status: Patch Available (was: In Progress)
> Fix NPE in FunctionalIndexSupport::loadFunctionalIndexDataFrame()
> -----------------------------------------------------------------
>
> Key: HUDI-7582
> URL: https://issues.apache.org/jira/browse/HUDI-7582
> Project: Apache Hudi
> Issue Type: Bug
> Components: index
> Reporter: Vinaykumar Bhat
> Assignee: Sagar Sumit
> Priority: Major
> Labels: hudi-1.0.0-beta2, pull-request-available
> Fix For: 1.0.0
>
>
> lookupCandidateFilesInMetadataTable(...) calls
> FunctionalIndexSupport::loadFunctionalIndexDataFrame() with an empty string
> for indexPartition which results in a NPE as loadFunctionalIndexDataFrame()
> tries to lookup and dereference index-definition using this empty string.
>
> This part of the code should never have worked - hence it looks like
> functional index (based on col-stats) is not tested on the query path. trying
> to get the index-partition to use on the query side seems more involved - the
> incoming query predicate needs to be parsed to get the (column-names,
> function-name) for all the query predicate and then fetch the corresponding
> index-partition by walking through the index-defs maintained in the
> index-metadata.
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