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https://issues.apache.org/jira/browse/TAJO-1352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jihoon Son updated TAJO-1352:
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Description:
TAJO-1277 fixes a bug related to the associativity of join operators, but there
are still some missed cases that join operators are associative. This work
should include the cases described in the following links:
* http://stackoverflow.com/questions/20022196/are-left-outer-joins-associative
* https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Joins
was:
TAJO-1277 fixes a bug related to the associativity of join operators, but there
are still some missed cases that join operators are associative. Please refer
to the following links:
* http://stackoverflow.com/questions/20022196/are-left-outer-joins-associative
* https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Joins
> Improve the join order algorithm to consider missed cases of associative join
> operators
> ---------------------------------------------------------------------------------------
>
> Key: TAJO-1352
> URL: https://issues.apache.org/jira/browse/TAJO-1352
> Project: Tajo
> Issue Type: Improvement
> Components: planner/optimizer
> Reporter: Jihoon Son
> Assignee: Jihoon Son
>
> TAJO-1277 fixes a bug related to the associativity of join operators, but
> there are still some missed cases that join operators are associative. This
> work should include the cases described in the following links:
> * http://stackoverflow.com/questions/20022196/are-left-outer-joins-associative
> * https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Joins
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