[
https://issues.apache.org/jira/browse/TAJO-316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13837314#comment-13837314
]
Jihoon Son commented on TAJO-316:
---------------------------------
Great work!
When you post the next patch, I'll review it.
> Improve GreedyHeuristicJoinOrderAlgorithm to deal with non-commutative joins
> ----------------------------------------------------------------------------
>
> Key: TAJO-316
> URL: https://issues.apache.org/jira/browse/TAJO-316
> Project: Tajo
> Issue Type: Improvement
> Components: planner/optimizer
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Labels: cbo
> Fix For: 0.8-incubating
>
> Attachments: TAJO-316.patch
>
>
> GreedyHeuristicJoinOrderAlgorithm is a default cost-based join order
> algorithm. It is designed only for inner joins, and it cannot deal with
> non-commutative joins, such as left/right/full outer join and semi/anti join.
> The main goal of this issue is to improve this algorithm to deal with them.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
