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https://issues.apache.org/jira/browse/HIVE-14340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15399753#comment-15399753
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Jimmy Xiang commented on HIVE-14340:
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Query hook is a little ambiguous.
Since post execution hooks are already supported, does this mean we just need
to add pre compilation hook? Isn't pre semantic analysis good for this purpose?
> Add a new hook triggers before query compilation and after query execution
> --------------------------------------------------------------------------
>
> Key: HIVE-14340
> URL: https://issues.apache.org/jira/browse/HIVE-14340
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 2.2.0
> Reporter: Chao Sun
> Assignee: Chao Sun
> Attachments: HIVE-14340.0.patch
>
>
> In some cases we may need to have a hook that activates before a query
> compilation and after its execution. For instance, dynamically generate a UDF
> specifically for the running query and clean up the resource after the query
> is done. The current hooks only covers pre & post semantic analysis, pre &
> post query execution, which doesn't fit the requirement.
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