Janos Kovacs created HIVE-26144:
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             Summary: Add keys/indexes to support highly concurrent workload
                 Key: HIVE-26144
                 URL: https://issues.apache.org/jira/browse/HIVE-26144
             Project: Hive
          Issue Type: Sub-task
          Components: Database/Schema
            Reporter: Janos Kovacs
            Assignee: Janos Kovacs


The following indexes are added to avoid full table-scan in backend rdbms: 
- primary key for COMPLETED_TXN_COMPONENTS
- primary key for TXN_COMPONENTS
- index for TXN_WRITE_NOTIFICATION_LOG



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