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https://issues.apache.org/jira/browse/HIVE-21980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich reassigned HIVE-21980:
---------------------------------------
> Parsing time can be high in case of deeply nested subqueries
> ------------------------------------------------------------
>
> Key: HIVE-21980
> URL: https://issues.apache.org/jira/browse/HIVE-21980
> Project: Hive
> Issue Type: Improvement
> Components: Parser
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-21980.01.patch
>
>
> for queries which are recursively doing:
> {code}
> SELECT ...
> FROM (SELECT ...
> FROM ( [...]
> ) JOIN
> (SELECT ...
> FROM ( [...] )
> JOIN ( [...]
> )
> {code}
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