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https://issues.apache.org/jira/browse/HIVE-21840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16860286#comment-16860286
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Naveen Gangam commented on HIVE-21840:
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Impala is requesting that they have the ability to distinguish between
unbucketed tables and bucketed tables where the bucketing info has been removed
during translation. They understand that it still is READONLY access. They are
proposing that we define a new capability that helps the translator determine
whether or not to remove the bucketing info.
> Hive Metastore Translation: Bucketed table ReadOnly capability
> --------------------------------------------------------------
>
> Key: HIVE-21840
> URL: https://issues.apache.org/jira/browse/HIVE-21840
> Project: Hive
> Issue Type: New Feature
> Reporter: Yongzhi Chen
> Assignee: Naveen Gangam
> Priority: Major
>
> Impala needs a new capability to tell only read supported for bucketed
> tables. No matter it is managed or external, ACID or not. Also in the current
> implementation, when HIVEBUCKET2 is not in the capabilities list, a bucked
> external table returned as an un-bucketed one, we need a way to know it is
> "downgraded" from a bucketed table.
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