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https://issues.apache.org/jira/browse/CALCITE-754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14581065#comment-14581065
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Sean Hsuan-Yi Chu commented on CALCITE-754:
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I am not sure if we can remove findAllColumnNames() entirely?
Before moving into Monotonicity detection, we still need to get all the column
names right? It is where findAllColumnNames() is necessary?
> Failure to resolve a column in OVER-CLAUSE if that column is produced by a
> JOIN
> -------------------------------------------------------------------------------
>
> 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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