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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2012/12/19 08:05:15 UTC
[jira] [Updated] (HIVE-3315) Propagates filters which are on the
join condition transitively
[ https://issues.apache.org/jira/browse/HIVE-3315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Navis updated HIVE-3315:
------------------------
Fix Version/s: 0.10.0
> Propagates filters which are on the join condition transitively
> ----------------------------------------------------------------
>
> Key: HIVE-3315
> URL: https://issues.apache.org/jira/browse/HIVE-3315
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 0.10.0
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Fix For: 0.10.0
>
> Attachments: HIVE-3315.1.patch.txt, HIVE-3315.2.patch.txt, HIVE-3315.3.patch.txt, HIVE-3315.D4497.5.patch, HIVE-3315.D4497.6.patch, HIVE-3315.D4497.7.patch
>
>
> explain select src1.key from src src1 join src src2 on src1.key=src2.key and src1.key < 100;
> In this case, filter on join condition src1.key < 100 can be propagated transitively to src2 by src2.key < 100.
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