Vineet Garg created CALCITE-1511:
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Summary: RelDecorrelator's allLessThan failing for NOT EXISTS
subquery
Key: CALCITE-1511
URL: https://issues.apache.org/jira/browse/CALCITE-1511
Project: Calcite
Issue Type: Bug
Components: core
Reporter: Vineet Garg
Assignee: Julian Hyde
Calcite hits an assertion for following query (planning is done by calling
SubQueryRemoveRule followed by decorrelateQuery )
{code} select * from emp where EXISTS (select * from emp e where emp.deptno =
e.deptno) AND NOT EXISTS (select * from emp ee where ee.job = emp.job AND
ee.sal=34) {code}
Assertion
{noformat} Caused by: java.lang.AssertionError: out of range; value: 3, limit:
3 {noformat}
This assertion is hit in {noformat} RelDecorrelator's allLessThan {noformat}
which is called while registering newly de-correlated LogicalAggregate.
Plan just before SubqueryRemoveRule
{noformat}
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalFilter(condition=[AND(EXISTS({
LogicalFilter(condition=[=($cor0.DEPTNO, $7)])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
}), NOT(EXISTS({
LogicalFilter(condition=[AND(=($2, $cor0.JOB), =($5, 34))])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
})))], variablesSet=[[$cor0]])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
{noformat}
Plan just after SubqueryRemoveRule:
{noformat}
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], i=[$9])
LogicalFilter(condition=[AND(OR(IS NULL($12), =($10, 0)), OR(>=($11,
$10), =($10, 0)))])
LogicalJoin(condition=[true], joinType=[left])
LogicalJoin(condition=[true], joinType=[inner])
LogicalCorrelate(correlation=[$cor0], joinType=[INNER],
requiredColumns=[{7}])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{0}])
LogicalProject(i=[true])
LogicalFilter(condition=[=($cor0.DEPTNO, $7)])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{}], c=[COUNT()], ck=[COUNT($0, $1, $2, $3,
$4, $5, $6, $7, $8)])
LogicalFilter(condition=[AND(=($2, $cor0.JOB), =($5, 34))])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{0}])
LogicalProject(i=[true])
LogicalFilter(condition=[AND(=($2, $cor0.JOB), =($5, 34))])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
{noformat}
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