[jira] [Created] (CALCITE-3421) Reuse relMetadataQuery.

[xzh_dz (Jira)]

xzh_dz created CALCITE-3421:
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             Summary: Reuse relMetadataQuery.
                 Key: CALCITE-3421
                 URL: https://issues.apache.org/jira/browse/CALCITE-3421
             Project: Calcite
          Issue Type: Wish
            Reporter: xzh_dz


Reuse relMetadataQuery in 
TraitPropagationTest,VolcanoPlannerTraitTest,RelMetadataTest,PlannerTest



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