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https://issues.apache.org/jira/browse/CALCITE-5418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-5418:
------------------------------------
Labels: pull-request-available (was: )
> Nested Queries are not expanded properly
> ----------------------------------------
>
> Key: CALCITE-5418
> URL: https://issues.apache.org/jira/browse/CALCITE-5418
> Project: Calcite
> Issue Type: Bug
> Reporter: James Starr
> Assignee: James Starr
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> SubQueryRemoveRule does not expand the subqueries correctly:
> {code:sql}
> SELECT deptno
> FROM emp e
> WHERE EXISTS (
> SELECT *
> FROM dept d
> WHERE d.deptno = e.deptno
> AND exists(
> SELECT *
> FROM emp_address ea
> WHERE ea.empno = e.empno)
> AND exists(
> SELECT *
> FROM emp e2
> WHERE e2.deptno = d.deptno)){code}
> {code}
> LogicalProject(DEPTNO=[$7])
> LogicalCorrelate(correlation=[$cor0], joinType=[inner],
> requiredColumns=[{0, 7}])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalAggregate(group=[{0}])
> LogicalProject(i=[true])
> LogicalFilter(condition=[=($0, $cor0.DEPTNO)])
> LogicalCorrelate(correlation=[$cor2], joinType=[inner],
> requiredColumns=[{0}])
> LogicalCorrelate(correlation=[$cor0], joinType=[inner],
> requiredColumns=[{0}]) <--- This is incorrect.
> LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
> LogicalAggregate(group=[{0}])
> LogicalProject(i=[true])
> LogicalFilter(condition=[=($0, $cor0.EMPNO)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP_ADDRESS]])
> LogicalAggregate(group=[{0}])
> LogicalProject(i=[true])
> LogicalFilter(condition=[=($7, $cor2.DEPTNO)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> {code}
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