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https://issues.apache.org/jira/browse/HIVE-22252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Sherman updated HIVE-22252:
--------------------------------
Description:
While debugging an issue I noticed that during EXPLAIN the following methods
throw a NullPointerException:
VectorColumnOutputMapping#finalize
AbstractOperatorDesc#getUserLevelStatistics
AbstractOperatorDesc#getColumnExprMapForExplain
The exceptions do end up getting caught but we should add null checks and
gracefully to be less wasteful and to aid future debugging.
was:
While debugging an issue I noticed that during EXPLAIN the following methods
throw a NullPointerException:
VectorColumnOutputMapping::finalize
AbstractOperatorDesc::getUserLevelStatistics
AbstractOperatorDesc::getColumnExprMapForExplain
The exceptions do end up getting caught but we should add null checks and
gracefully to be less wasteful and to aid future debugging.
> Fix caught NullPointerExceptions generated during EXPLAIN
> ---------------------------------------------------------
>
> Key: HIVE-22252
> URL: https://issues.apache.org/jira/browse/HIVE-22252
> Project: Hive
> Issue Type: Bug
> Reporter: John Sherman
> Assignee: John Sherman
> Priority: Minor
> Attachments: HIVE-22252.1.patch
>
>
> While debugging an issue I noticed that during EXPLAIN the following methods
> throw a NullPointerException:
> VectorColumnOutputMapping#finalize
> AbstractOperatorDesc#getUserLevelStatistics
> AbstractOperatorDesc#getColumnExprMapForExplain
> The exceptions do end up getting caught but we should add null checks and
> gracefully to be less wasteful and to aid future debugging.
>
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