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https://issues.apache.org/jira/browse/DRILL-1539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179302#comment-14179302
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Hanifi Gunes commented on DRILL-1539:
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1. it sounds better to set lastPopulatedValueIndex to number `to`.
2. Agree that this should be a seperate JIRA.
I will verify 1 & 2
> RepeatedMapVector maintains incorrect last non-empty element index.
> -------------------------------------------------------------------
>
> Key: DRILL-1539
> URL: https://issues.apache.org/jira/browse/DRILL-1539
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Hanifi Gunes
> Assignee: Jinfeng Ni
> Attachments: DRILL-1539.1.patch.txt
>
>
> RepeatedMapVector maintains the last non-empty element index. The invariant
> for the variable is that it must start from -1 and it must be less than the
> group count. Current implementation violates this invariant. Drill will raise
> IndexOutOfBounds exception for certain cases led by this violation.
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