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https://issues.apache.org/jira/browse/HIVE-10685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14577942#comment-14577942
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Prasanth Jayachandran commented on HIVE-10685:
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[~FanTn] Thanks for the patch. I just updated the patch so that precommit test
can apply the patch cleanly. Also made another minor change in the patch to
move the stripe index increment out of the condition. Will commit the patch if
the precommit test runs cleanly.
> Alter table concatenate oparetor will cause duplicate data
> ----------------------------------------------------------
>
> Key: HIVE-10685
> URL: https://issues.apache.org/jira/browse/HIVE-10685
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.14.0, 1.0.0, 1.2.0, 1.1.0, 1.3.0, 1.2.1
> Reporter: guoliming
> Assignee: guoliming
> Fix For: 1.2.0, 1.1.0
>
> Attachments: HIVE-10685.1.patch, HIVE-10685.patch
>
>
> "Orders" table has 1500000000 rows and stored as ORC.
> {noformat}
> hive> select count(*) from orders;
> OK
> 1500000000
> Time taken: 37.692 seconds, Fetched: 1 row(s)
> {noformat}
> The table contain 14 files,the size of each file is about 2.1 ~ 3.2 GB.
> After executing command : ALTER TABLE orders CONCATENATE;
> The table is already 1530115000 rows.
> My hive version is 1.1.0.
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