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https://issues.apache.org/jira/browse/HIVE-20607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16662858#comment-16662858
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Hive QA commented on HIVE-20607:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m 17s{color} 
| {color:red} 
/data/hiveptest/logs/PreCommit-HIVE-Build-14628/patches/PreCommit-HIVE-Build-14628.patch
 does not apply to master. Rebase required? Wrong Branch? See 
http://cwiki.apache.org/confluence/display/Hive/HowToContribute for help. 
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| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-14628/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


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> TxnHandler should use PreparedStatement to execute direct SQL queries.
> ----------------------------------------------------------------------
>
>                 Key: HIVE-20607
>                 URL: https://issues.apache.org/jira/browse/HIVE-20607
>             Project: Hive
>          Issue Type: Bug
>          Components: Standalone Metastore, Transactions
>    Affects Versions: 4.0.0
>            Reporter: Sankar Hariappan
>            Assignee: Sankar Hariappan
>            Priority: Major
>              Labels: ACID, pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-20607.01-branch-3.patch, HIVE-20607.01.patch
>
>
> TxnHandler uses direct SQL queries to operate on Txn related databases/tables 
> in Hive metastore RDBMS.
> Most of the methods are direct calls from Metastore api which should be 
> directly append input string arguments to the SQL string.
> Need to use parameterised PreparedStatement object to set these arguments.



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