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Posted to dev@hive.apache.org by "Edward Capriolo (JIRA)" <ji...@apache.org> on 2013/08/31 16:41:52 UTC
[jira] [Updated] (HIVE-4891) Distinct includes duplicate records
[ https://issues.apache.org/jira/browse/HIVE-4891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Edward Capriolo updated HIVE-4891:
----------------------------------
Priority: Blocker (was: Major)
> Distinct includes duplicate records
> -----------------------------------
>
> Key: HIVE-4891
> URL: https://issues.apache.org/jira/browse/HIVE-4891
> Project: Hive
> Issue Type: Bug
> Components: File Formats, HiveServer2, Query Processor
> Affects Versions: 0.10.0
> Reporter: Fengdong Yu
> Priority: Blocker
>
> I have two partitions, one is sequence file, another is RCFile, but they are the same data(only different file format).
> I have the following SQL:
> {code}
> select distinct uid from test where (dt ='20130718' or dt ='20130718_1') and cur_url like '%cq.aa.com%';
> {code}
> dt ='20130718' is sequence file,(default input format, which specified when create table)
>
> dt ='20130718_1' is RCFile.
> {code}
> ALTER TABLE test ADD IF NOT EXISTS PARTITION (dt='20130718_1') LOCATION '/user/test/test-data'
> ALTER TABLE test PARTITION(dt='20130718_1') SET FILEFORMAT RCFILE;
> {code}
> but there are duplicate recoreds in the result.
> If two partitions with the same input format, then there are no duplicate records.
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