Marta Kuczora created HIVE-18892:
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Summary: Fix NPEs in HiveMetastore.exchange_partitions method
Key: HIVE-18892
URL: https://issues.apache.org/jira/browse/HIVE-18892
Project: Hive
Issue Type: Bug
Components: Metastore
Reporter: Marta Kuczora
Assignee: Marta Kuczora
The TestExchangePartitions tests revealed that NPE is thrown if the
exchange_partitions method is called with null, empty or non-existing DB and
table names. These NPEs could be prevented with a simple null check and a
MetaException with a proper error message should be thrown instead.
Example: NPE is thrown in the following test cases
* testExchangePartitionsNonExistingSourceTable
* testExchangePartitionsNonExistingSourceDB
* testExchangePartitionsNonExistingDestTable
* testExchangePartitionsNonExistingDestDB
* testExchangePartitionsEmptySourceTable
* testExchangePartitionsEmptySourceDB
* testExchangePartitionsEmptyDestTable
* testExchangePartitionsEmptyDestDB
* testExchangePartitionsNullSourceTable
* testExchangePartitionsNullSourceDB
* testExchangePartitionsNullDestTable
* testExchangePartitionsNullDestDB
* testExchangePartitionsNullPartSpec
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