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https://issues.apache.org/jira/browse/HIVE-2955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HIVE-2955:
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Attachment: HIVE-2955.D2817.1.patch
navis requested code review of "HIVE-2955 [jira] Queries consists of
metadata-only-query returns always empty value".
Reviewers: JIRA
DPAL-1108 Queries consists of metadata-only-query returns always empty value
For partitioned table, simple query on partition column returns always null
or empty value, for example,
create table emppart(empno int, ename string) partitioned by (deptno int);
.. load partitions..
select distinct deptno from emppart; // empty
select min(deptno), max(deptno) from emppart; // NULL and NULL
TEST PLAN
EMPTY
REVISION DETAIL
https://reviews.facebook.net/D2817
AFFECTED FILES
ql/src/java/org/apache/hadoop/hive/ql/exec/ExecDriver.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/MetadataOnlyOptimizer.java
ql/src/test/queries/clientpositive/metadataonly1.q
ql/src/test/results/clientpositive/metadataonly1.q.out
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> Queries consists of metadata-only-query returns always empty value
> ------------------------------------------------------------------
>
> Key: HIVE-2955
> URL: https://issues.apache.org/jira/browse/HIVE-2955
> Project: Hive
> Issue Type: Bug
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: HIVE-2955.D2817.1.patch
>
>
> For partitioned table, simple query on partition column returns always null
> or empty value, for example,
> {code}
> create table emppart(empno int, ename string) partitioned by (deptno int);
> .. load partitions..
> select distinct deptno from emppart; // empty
> select min(deptno), max(deptno) from emppart; // NULL and NULL
> {code}
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