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https://issues.apache.org/jira/browse/CALCITE-1076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15131880#comment-15131880
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Julian Hyde commented on CALCITE-1076:
--------------------------------------

Ah, I see now. The other way of way of stating this bug is: RelMdDistribution 
is not tested. If there were a test, the assert would have shown up. Do you 
feel like adding a test to RelMetadataTest? (I don't think the test in your 
patch exercises the metadata provider, so it won't exercise this bug.)

> Metadata distribution is broken due to last refactor
> ----------------------------------------------------
>
>                 Key: CALCITE-1076
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1076
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.7.0
>            Reporter: Ted Xu
>            Assignee: Julian Hyde
>
> Metadata distribution is broken due to last refactor.
> Calls of RelMdDistribution will get:
> {code}
> java.lang.AssertionError: are your methods named wrong?
> {code}



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