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https://issues.apache.org/jira/browse/HIVE-19599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vineet Garg resolved HIVE-19599.
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Resolution: Fixed
> Release Notes : Highlighting backwards incompatible changes
> -----------------------------------------------------------
>
> Key: HIVE-19599
> URL: https://issues.apache.org/jira/browse/HIVE-19599
> Project: Hive
> Issue Type: Bug
> Components: Documentation
> Affects Versions: 3.0.0
> Reporter: Eugene Koifman
> Assignee: Vineet Garg
> Priority: Blocker
>
> We need to highlight backwards incompatible changes. A list Jira titles
> won't be sufficient.
> For example, tables with Acid V1 (pre 3.0) data has to be major compacted
> before upgrade and may not process any update/delete/merge until after
> upgrade. Not doing so may result in data corruption/loss.
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