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https://issues.apache.org/jira/browse/CALCITE-1024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1024.
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Resolution: Fixed
Fix Version/s: 1.6.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/d55ff83f.
> In a planner test, if a rule should have no effect, state that explicitly
> -------------------------------------------------------------------------
>
> Key: CALCITE-1024
> URL: https://issues.apache.org/jira/browse/CALCITE-1024
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Fix For: 1.6.0
>
>
> Add method {{RelOptRulesTestBase.checkPlanUnchanged}} method, and also add a
> {{boolean unchanged}} parameter to the underlying {{checkPlanning}} method.
> If a planner test is supposed to have no effect, that is, if the before and
> after plans are the same, then you must specify that flag.
> This makes it easier to notice if a rule that is supposed to work has stopped
> working. It also removes redundant plans from the reference file.
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