[jira] [Created] (CALCITE-480) Rework RelImplementor so it makes sense to use/implement

[Vladimir Sitnikov (JIRA)]

Vladimir Sitnikov created CALCITE-480:
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             Summary: Rework RelImplementor so it makes sense to use/implement
                 Key: CALCITE-480
                 URL: https://issues.apache.org/jira/browse/CALCITE-480
             Project: Calcite
          Issue Type: Bug
    Affects Versions: 1.0.0-incubating
            Reporter: Vladimir Sitnikov
            Assignee: Julian Hyde


Currently, no methods of {{RelImplementor}} are used in Calcite.
This is a bit strange since it makes code less understandable/extensible.

I have no clear plan on the fix, however I think something should be done to 
unused {{visitChild}} and {{visitChildInternal}}.



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