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https://issues.apache.org/jira/browse/HIVE-5980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ruish li updated HIVE-5980:
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Summary: MapJoin does not take effect (was: MapJoin not take effect)
> MapJoin does not take effect
> ----------------------------
>
> Key: HIVE-5980
> URL: https://issues.apache.org/jira/browse/HIVE-5980
> Project: Hive
> Issue Type: Bug
> Components: CLI
> Affects Versions: 0.12.0
> Reporter: ruish li
> Priority: Trivial
> Labels: patch
>
> step1:
> hive-site.xml
> <property>
> <name>hive.auto.convert.join</name>
> <value>true</value>
> </property>
> step2: set the parameter in console:
> cli: set hive.auto.convert.join=false;
> step3: execute sql, mapjoin Does not take effect
> select /*+ mapjoin(t2)*/ * from t1 join t2 on t1.f=t2.f;
> step4: explain sql, we can see that the join does not conver to mapjoin
> select /*+ mapjoin(t2)*/ * from t1 join t2 on t1.f=t2.f;
>
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