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Posted to dev@hive.apache.org by "Phabricator (JIRA)" <ji...@apache.org> on 2013/08/12 08:57:47 UTC
[jira] [Updated] (HIVE-5062) Insert + orderby + limit does not need
additional RS for limiting rows
[ https://issues.apache.org/jira/browse/HIVE-5062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phabricator updated HIVE-5062:
------------------------------
Attachment: HIVE-5062.D12171.1.patch
navis requested code review of "HIVE-5062 [jira] Insert + orderby + limit does not need additional RS for limiting rows".
Reviewers: JIRA
HIVE-5062 Insert + orderby + limit does not need additional RS for limiting rows
The query,
insert overwrite table dummy select * from src order by key limit 10;
runs two MR but single MR is enough.
TEST PLAN
EMPTY
REVISION DETAIL
https://reviews.facebook.net/D12171
AFFECTED FILES
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
ql/src/test/results/clientpositive/insert1_overwrite_partitions.q.out
ql/src/test/results/clientpositive/insert2_overwrite_partitions.q.out
MANAGE HERALD RULES
https://reviews.facebook.net/herald/view/differential/
WHY DID I GET THIS EMAIL?
https://reviews.facebook.net/herald/transcript/29067/
To: JIRA, navis
> Insert + orderby + limit does not need additional RS for limiting rows
> ----------------------------------------------------------------------
>
> Key: HIVE-5062
> URL: https://issues.apache.org/jira/browse/HIVE-5062
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Trivial
> Attachments: HIVE-5062.D12171.1.patch
>
>
> The query,
> {noformat}
> insert overwrite table dummy select * from src order by key limit 10;
> {noformat}
> runs two MR but single MR is enough.
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