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Posted to issues@hive.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/07/20 01:06:00 UTC
[jira] [Work logged] (HIVE-19113) Bucketing: Make CLUSTERED BY do
CLUSTER BY if no explicit sorting is specified
[ https://issues.apache.org/jira/browse/HIVE-19113?focusedWorklogId=280015&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-280015 ]
ASF GitHub Bot logged work on HIVE-19113:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Jul/19 01:05
Start Date: 20/Jul/19 01:05
Worklog Time Spent: 10m
Work Description: jcamachor commented on pull request #731: HIVE-19113
URL: https://github.com/apache/hive/pull/731
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Issue Time Tracking
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Worklog Id: (was: 280015)
Time Spent: 10m
Remaining Estimate: 0h
> Bucketing: Make CLUSTERED BY do CLUSTER BY if no explicit sorting is specified
> ------------------------------------------------------------------------------
>
> Key: HIVE-19113
> URL: https://issues.apache.org/jira/browse/HIVE-19113
> Project: Hive
> Issue Type: Improvement
> Components: Logical Optimizer
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-19113.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The user's expectation of
> "create external table bucketed (key int) clustered by (key) into 4 buckets stored as orc;"
> is that the table will cluster the key into 4 buckets, while the file layout does not do any actual clustering of rows.
> In the absence of a "SORTED BY", this can automatically do a "SORTED BY (key)" to cluster the keys within the file as expected.
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