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https://issues.apache.org/jira/browse/TAJO-458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-458:
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Status: Patch Available (was: Open)
> Visit methods of LogicalPlanVisitor should take a query block as parameter
> --------------------------------------------------------------------------
>
> Key: TAJO-458
> URL: https://issues.apache.org/jira/browse/TAJO-458
> Project: Tajo
> Issue Type: Improvement
> Components: planner/optimizer
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.8-incubating
>
>
> A logical plan is composed of multiple query blocks. Each logical node must
> belong to one query block. A query block instance provides lots of
> information. So, it is essential information in many rewrite rules and
> optimizer implementations.
> However, so far, individual rewrite rule or optimizer implementation have
> dealt with query block directly. It may be error-prone and cause duplicated
> codes. This patch refactors each visitor method of LogicalPlanVisitor to take
> a query block as a parameter.
> I'm expecting that this change will provide more convenience for rewrite
> rules and optimization development.
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