Aihua Xu created HIVE-14926:
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             Summary: Keep Schema in consistent state where schemaTool fails or 
succeeds.  
                 Key: HIVE-14926
                 URL: https://issues.apache.org/jira/browse/HIVE-14926
             Project: Hive
          Issue Type: Improvement
          Components: Database/Schema
            Reporter: Aihua Xu
            Assignee: Aihua Xu


SchemaTool uses autocommit right now when executing the upgrade or init 
scripts. Seems we should use database transaction to commit or roll back to 
keep schema consistent.  



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