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https://issues.apache.org/jira/browse/CALCITE-7538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18082795#comment-18082795
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Sergey Nuyanzin commented on CALCITE-7538:
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Merged as
[16c2b1c3469f504bc540c9f12438778e2ca7b2d7|https://github.com/apache/calcite/commit/16c2b1c3469f504bc540c9f12438778e2ca7b2d7]
> SqlValidatorImpl should reject MATCH_RECOGNIZE with duplicate MEASURE alias
> ---------------------------------------------------------------------------
>
> Key: CALCITE-7538
> URL: https://issues.apache.org/jira/browse/CALCITE-7538
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
> Labels: pull-request-available
>
> Right now a query like
> {code:sql}
> SELECT *
> FROM emp
> MATCH_RECOGNIZE (
> MEASURES
> A.deptno AS deptno,
> A.deptno AS deptno
> PATTERN (A B)
> DEFINE
> A AS A.empno = 123
> )
> {code}
> passes validation and fails while SqlToRel conversion.
> Ideally it should fail while validation
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