John Sherman created HIVE-22252:
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Summary: 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
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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