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https://issues.apache.org/jira/browse/CALCITE-7085?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Viggo Chen updated CALCITE-7085:
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Summary: JOIN USING with unqualified common column fails for disallows
qualifying common column (was: Join Using with unqualified common column fails
when disallows qualifying common column)
> JOIN USING with unqualified common column fails for disallows qualifying
> common column
> --------------------------------------------------------------------------------------
>
> Key: CALCITE-7085
> URL: https://issues.apache.org/jira/browse/CALCITE-7085
> Project: Calcite
> Issue Type: Bug
> Reporter: Viggo Chen
> Priority: Major
>
> See SqlToRelConverterTest [test case
> |https://github.com/apache/calcite/commit/7990aa521103f4af1f690dd5152b972f69df0a0b]
> {code:java}
> // FIXME: fails with "Cannot qualify common column 'EMP.DEPTNO'"
> @Test void
> testJoinUsingWithUnqualifiedCommonColumnWhenDisallowsQualifyingCommonColumn()
> {
> final String sql = "SELECT deptno, name\n"
> + "FROM emp JOIN dept using (deptno)";
> sql(sql).withConformance(SqlConformanceEnum.ORACLE_10).ok();
> } {code}
> deptno is expanded to COALESCE(`EMP`.`DEPTNO`, `DEPT`.`DEPTNO`) AS `DEPTNO`
> and fails because ORACLE disallows qualifying common column
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