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https://issues.apache.org/jira/browse/CALCITE-754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14583028#comment-14583028
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Julian Hyde commented on CALCITE-754:
-------------------------------------
I put in another fix which doesn't use findAllColumnNames. See
https://github.com/julianhyde/incubator-calcite/tree/754-resolve.
> Validator error when resolving OVER clause of JOIN query
> --------------------------------------------------------
>
> Key: CALCITE-754
> URL: https://issues.apache.org/jira/browse/CALCITE-754
> Project: Calcite
> Issue Type: Bug
> Reporter: Sean Hsuan-Yi Chu
> Assignee: Sean Hsuan-Yi Chu
>
> A query such as :
> select sum(t1.deptno) over(partition by t1.deptno)
> from emp t1, emp t2
> would raise exception:
> org.apache.calcite.sql.validate.SqlValidatorException: Column 'EMPNO' is
> ambiguous.
> Calcite cannot point the column in OVER-CLAUSE to the JOINed table.
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