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https://issues.apache.org/jira/browse/CALCITE-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiening Dai reassigned CALCITE-3487:
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Assignee: Xiening Dai
> Should not hard code RelMetadataQuery class in VolcanoPlanner.isValid()
> -----------------------------------------------------------------------
>
> Key: CALCITE-3487
> URL: https://issues.apache.org/jira/browse/CALCITE-3487
> Project: Calcite
> Issue Type: Bug
> Reporter: Xiening Dai
> Assignee: Xiening Dai
> Priority: Major
>
> With CALCITE-3446, a calcite user can choose to provide a sub-class of
> RelMetadataQuery through RelOptCluster.setMetadataQuery(). We cannot assume
> the base class RelMetadataQuery is always used in planner.
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