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https://issues.apache.org/jira/browse/CALCITE-1799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde reopened CALCITE-1799:
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> "OR ... IN" sub-query conversion is wrong
> -----------------------------------------
>
> Key: CALCITE-1799
> URL: https://issues.apache.org/jira/browse/CALCITE-1799
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.12.0
> Reporter: Gian Merlino
> Assignee: Julian Hyde
> Labels: sub-query
>
> This query:
> {code}
> select * from emp where deptno = 10 or deptno in (
> select dept.deptno from dept where deptno < 5)
> {code}
> Is converted to this by SqlToRelConverter:
> {code}
> LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
> SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
> LogicalFilter(condition=[OR(=($7, 10), true)])
> LogicalJoin(condition=[=($7, $9)], joinType=[inner])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalAggregate(group=[{0}])
> LogicalProject(DEPTNO=[$0])
> LogicalFilter(condition=[<($0, 5)])
> LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
> {code}
> But that's not right. {code}LogicalFilter(condition=[OR(=($7, 10),
> true)]){code} is always true and is in the wrong place anyway (it's applied
> after the inner join, where all the deptno = 10 records have already been
> removed).
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