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Posted to issues@calcite.apache.org by "Xiening Dai (Jira)" <ji...@apache.org> on 2019/11/08 17:29:00 UTC

[jira] [Created] (CALCITE-3487) Should not hard code RelMetadataQuery class in VolcanoPlanner.isValid()

Xiening Dai created CALCITE-3487:
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             Summary: 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


With CALCITE-3446, a calcite user can choose to provide a customized 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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