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https://issues.apache.org/jira/browse/HIVE-13193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15224096#comment-15224096
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Aihua Xu commented on HIVE-13193:
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Thanks for valuable info [~cwsteinbach]
yeah. Seems we were misusing thread local variables to just make it easier to
pass the object like SessionState.
> Enable the compilation in parallel in single session
> ----------------------------------------------------
>
> Key: HIVE-13193
> URL: https://issues.apache.org/jira/browse/HIVE-13193
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Aihua Xu
> Assignee: Aihua Xu
>
> Follow up on HIVE-4239. Investigate the needed change to support parallel
> complication in the same session.
> Some operation related stuff should be in OperationState rather than in
> SessionState.
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