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https://issues.apache.org/jira/browse/CALCITE-918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14953846#comment-14953846
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Julian Hyde commented on CALCITE-918:
-------------------------------------
+1 to commit the patch
Can you change the commit description to "createProject in RelOptUtil should
uniquify field names".
> createProject in RelOptUtil should uniquify fields
> --------------------------------------------------
>
> Key: CALCITE-918
> URL: https://issues.apache.org/jira/browse/CALCITE-918
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.4.0-incubating
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Fix For: 1.5.0-incubating
>
>
> The method
> {code}
> public static RelNode createProject(
> final RelFactories.ProjectFactory factory,
> final RelNode child, final List<Integer> posList)
> {code}
> in RelOptUtil should uniquify fields before creating the Project operator.
> Otherwise, we might end up hitting an assertion in the Project constructor.
> This behavior was observed using the AggregateProjectMergeRule rule.
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