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https://issues.apache.org/jira/browse/HIVE-29551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor resolved HIVE-29551.
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Resolution: Fixed
> Avoid quadratic runtime in ColumnStatsSemanticAnalyzer#getColumnTypes
> ---------------------------------------------------------------------
>
> Key: HIVE-29551
> URL: https://issues.apache.org/jira/browse/HIVE-29551
> Project: Hive
> Issue Type: Task
> Reporter: Thomas Rebele
> Assignee: tanishqchugh
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.3.0
>
>
> It might be possible to avoid the quadratic runtime by collecting column
> names and types at the same time.
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