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https://issues.apache.org/jira/browse/HIVE-3750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508583#comment-13508583
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Namit Jain commented on HIVE-3750:
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+1
> JDBCStatsPublisher fails when ID length exceeds length of ID column
> -------------------------------------------------------------------
>
> Key: HIVE-3750
> URL: https://issues.apache.org/jira/browse/HIVE-3750
> Project: Hive
> Issue Type: Bug
> Components: Statistics
> Affects Versions: 0.11
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Attachments: HIVE-3750.1.patch.txt
>
>
> When the length of the ID field passed to JDBCStatsPublisher exceeds the
> length of the column in the table (currently 255 characters) stats collection
> fails. This causes the entire query to fail when hive.stats.reliable is set
> to true.
> One way to prevent this would be to calculate a deterministic, very low
> collision hash of the ID prefix used for aggregation and use that when the
> length of the ID is too long.
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