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https://issues.apache.org/jira/browse/HIVE-24362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mahesh kumar behera resolved HIVE-24362.
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Resolution: Fixed
Pushed to master. Thanks [~pgaref] for review.
> AST tree processing is suboptimal for tree with large number of nodes
> ---------------------------------------------------------------------
>
> Key: HIVE-24362
> URL: https://issues.apache.org/jira/browse/HIVE-24362
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: mahesh kumar behera
> Assignee: mahesh kumar behera
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In hive the children information is stored as list of objects. During
> processing of the children of a node, the list of object is converted to list
> of Nodes. This can cause large compilation time if the number of children is
> large. The list of children can be cached in the AST node to avoid this
> re-computation.
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