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https://issues.apache.org/jira/browse/HIVE-16399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15959951#comment-15959951
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Wei Zheng commented on HIVE-16399:
----------------------------------

Attached the changes to upgrade script for internal branches. [~ekoifman] Can 
you take a look?

> created an index for tc_txnid in TXN_COMPONENTS
> -----------------------------------------------
>
>                 Key: HIVE-16399
>                 URL: https://issues.apache.org/jira/browse/HIVE-16399
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>         Attachments: BUG-78760.hive1.patch, BUG-78760.hive2.patch
>
>
> w/o this TxnStore.cleanEmptyAbortedTxns() can be very slow



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