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Ulrich Kramer updated CALCITE-6157: ----------------------------------- Summary: SqlValidatorImpl breaks join condition when inlining table alias (was: SqlValidatorImpl breaks join condition) > SqlValidatorImpl breaks join condition when inlining table alias > ---------------------------------------------------------------- > > Key: CALCITE-6157 > URL: https://issues.apache.org/jira/browse/CALCITE-6157 > Project: Calcite > Issue Type: Bug > Components: core > Affects Versions: 1.36.0 > Reporter: Ulrich Kramer > Priority: Major > > When switching from 1.35.0 to 1.36.0, {{SqlValidatorImpl}} breaks the join > condition on the following statement > {code:SQL} > WITH `it1` AS ( > SELECT > `company`, > `area`, > `revenue`, > `regionId` > FROM > `12345678-1234-1234-1234-000100000001`.`revenues` > ) > SELECT > * > FROM > ( > SELECT > `T1`.`company` AS `company`, > MAX(`T1`.`revenue`) AS `revenue` > FROM > `it1` AS `T1` > GROUP BY > `company` > ) AS `T` > LEFT JOIN `it1` AS `T2` ON `T`.`company` = `T2`.`company` > AND `T`.`revenue` = `T2`.`revenue` > {code} > It modifies the join condition [at this > location|https://github.com/apache/calcite/blob/d3ab0bc8e4d4c9ebc0fc4e33ce478d276f5d11e4/core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java#L3603-L3604] > to > {code:SQL} > `T`.`company` = `T1`.`company` > AND `T`.`revenue` = `T1`.`revenue` > {code} > which causes a "{{Table `T1`not found}}" exception. > I already tried to reproduce the problem by adding the following test to > {{SqlValidatorTest}}, but everything worked fine > {code:java} > @Test void testWith2() { > sql("with it1 as (select empno, sal, deptno from emp)\n" > + "select * from ( select t1.empno as empno, max(t1.deptno) as deptno > from it1 as t1 group by empno) as t\n" > + "left outer join it1 as t2 on t.empno = t2.empno and t.deptno = > t2.deptno") > .ok(); > } > {code} > During debugging, I recognized that the {{DelegatingScope}} does something > different in our case [at this > location|https://github.com/apache/calcite/blob/d3ab0bc8e4d4c9ebc0fc4e33ce478d276f5d11e4/core/src/main/java/org/apache/calcite/sql/validate/DelegatingScope.java#L333-L337]. > In our case the {{fromNs}} resolved to {{`it1` AS `T1`}}, which is wrong. > But I was not able to find the root cause yet. -- This message was sent by Atlassian Jira (v8.20.10#820010)