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Posted to issues@hive.apache.org by "guoliming (JIRA)" <ji...@apache.org> on 2015/05/12 12:24:59 UTC
[jira] [Assigned] (HIVE-10685) Alter table concatenate oparetor
will cause duplicate data
[ https://issues.apache.org/jira/browse/HIVE-10685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
guoliming reassigned HIVE-10685:
--------------------------------
Assignee: guoliming
> 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
> Reporter: guoliming
> Assignee: guoliming
>
> "Orders" table has 1500000000 rows and stored as ORC.
> hive> select count(*) om orders;
> OK
> 1500000000
> Time taken: 37.692 seconds, Fetched: 1 row(s)
> 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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