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https://issues.apache.org/jira/browse/HIVE-16399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991704#comment-15991704
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Wei Zheng commented on HIVE-16399:
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I reverted the changes to upgrade scripts 2.1.0-to-2.2.0, and put the changes
in upgrade scripts 2.2.0-to-2.3.0. Also reverted changes to schema-2.2 scripts,
and put the changes to schema-2.3 scripts.
Basically branch-2.2 is irrelevant to this change. It will only be effective
from branch-2.3 and above.
> create 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: HIVE-16399.branch-2.3.patch, HIVE-16399.branch-2.patch,
> HIVE-16399.master.patch
>
>
> w/o this TxnStore.cleanEmptyAbortedTxns() can be very slow
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