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https://issues.apache.org/jira/browse/HIVE-4891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Fengdong Yu updated HIVE-4891:
------------------------------
Description:
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.
ALTER TABLE test PARTITION(dt='20130718_1') SET FILEFORMAT RCFILE;
but there are duplicate recoreds in the result.
If two partitions with the same input format, then there are no duplicate
records.
was:
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 pv 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.
ALTER TABLE test PARTITION(dt='20130718_1') SET FILEFORMAT RCFILE;
but there are duplicate recoreds in the result.
If two partitions with the same input format, then there are no duplicate
records.
> Distinct includes duplicate records
> -----------------------------------
>
> Key: HIVE-4891
> URL: https://issues.apache.org/jira/browse/HIVE-4891
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 0.10.0
> Reporter: Fengdong Yu
>
> 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.
> ALTER TABLE test PARTITION(dt='20130718_1') SET FILEFORMAT RCFILE;
> 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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