[
https://issues.apache.org/jira/browse/CALCITE-5880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
libopeng updated CALCITE-5880:
------------------------------
Description:
{code:java}
select EMPNO
from emp
where EXISTS (select DEPTNO from dept where emp.EMPNO is not DISTINCT from
dept.DEPTNO){code}
before decorrelation
{code:java}
LogicalProject(EMPNO=[$0])
LogicalFilter(condition=[IS NOT NULL($9)])
LogicalCorrelate(correlation=[$cor0], joinType=[left],
requiredColumns=[{0}])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{}], agg#0=[MIN($0)])
LogicalProject($f0=[true])
LogicalFilter(condition=[OR(AND(IS NULL($cor0.EMPNO), IS NULL($0)),
IS TRUE(=($cor0.EMPNO, $0)))]) <--- here is 't1.x is not distinct from
t2.x'
LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
{code}
after decorrelation
{code:java}
LogicalProject(EMPNO=[$0])
LogicalFilter(condition=[IS NOT NULL($9)])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], $f0=[$13])
LogicalJoin(condition=[AND(=($0, $11), =($9, $12))], joinType=[left])
<---here is 't1.x=t2.x and (t1.x is null = t2.x is null)'
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3],
HIREDATE=[$4], SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], $f9=[false],
EMPNO0=[$0])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{0, 1}], agg#0=[MIN($2)])
LogicalProject(EMPNO=[$2], $f9=[$3], $f0=[true])
LogicalJoin(condition=[=($2, $0)], joinType=[inner])
LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
LogicalProject(EMPNO=[$0], $f9=[false])
LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
{code:java}
EMP | DEPT
+---------+ | +---------+
| EMPNO | | | DEPTNO |
+---------+ | +---------+
| null | | | null |
{code}
expect result
{code:java}
EMPNO
+-------+
| null |
+-------+{code}
actual result
{code:java}
EMPNO
+-------+
+-------+ {code}
was:
{code:java}
select EMPNO
from emp
where EXISTS (select DEPTNO from dept where emp.EMPNO is not DISTINCT from
dept.DEPTNO){code}
before decorrelation
{code:java}
LogicalProject(EMPNO=[$0])
LogicalFilter(condition=[IS NOT NULL($9)])
LogicalCorrelate(correlation=[$cor0], joinType=[left],
requiredColumns=[{0}])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{}], agg#0=[MIN($0)])
LogicalProject($f0=[true])
LogicalFilter(condition=[OR(AND(IS NULL($cor0.EMPNO), IS NULL($0)),
IS TRUE(=($cor0.EMPNO, $0)))]) <--- here is 't1.x is not distinct from
t2.x'
LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
{code}
after decorrelation
{code:java}
LogicalProject(EMPNO=[$0])
LogicalFilter(condition=[IS NOT NULL($9)])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], $f0=[$13])
LogicalJoin(condition=[AND(=($0, $11), =($9, $12))], joinType=[left])
<---here is 't1.x=t2.x and (t1.x is null = t2.x is null)'
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3],
HIREDATE=[$4], SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], $f9=[false],
EMPNO0=[$0])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{0, 1}], agg#0=[MIN($2)])
LogicalProject(EMPNO=[$2], $f9=[$3], $f0=[true])
LogicalJoin(condition=[=($2, $0)], joinType=[inner])
LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
LogicalProject(EMPNO=[$0], $f9=[false])
LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
{code:java}
EMP | DEPT
+---------+ | +---------+
| EMPNO | | | DEPTNO |
+---------+ | +---------+
| null | | | null |
{code}
expect result
{code:java}
EMPNO
+-------+
| null |
+-------+{code}
actual result
{code:java}
EMPNO
+-------+
+-------+ {code}
> When the association condition of the association subquery is 'is not
> distinct from', the join condition becomes '=' after decorrelation.
> -----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-5880
> URL: https://issues.apache.org/jira/browse/CALCITE-5880
> Project: Calcite
> Issue Type: Bug
> Reporter: libopeng
> Priority: Major
>
> {code:java}
> select EMPNO
> from emp
> where EXISTS (select DEPTNO from dept where emp.EMPNO is not DISTINCT from
> dept.DEPTNO){code}
> before decorrelation
> {code:java}
> LogicalProject(EMPNO=[$0])
> LogicalFilter(condition=[IS NOT NULL($9)])
> LogicalCorrelate(correlation=[$cor0], joinType=[left],
> requiredColumns=[{0}])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalAggregate(group=[{}], agg#0=[MIN($0)])
> LogicalProject($f0=[true])
> LogicalFilter(condition=[OR(AND(IS NULL($cor0.EMPNO), IS NULL($0)),
> IS TRUE(=($cor0.EMPNO, $0)))]) <--- here is 't1.x is not distinct from
> t2.x'
> LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
> {code}
> after decorrelation
> {code:java}
> LogicalProject(EMPNO=[$0])
> LogicalFilter(condition=[IS NOT NULL($9)])
> LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
> SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], $f0=[$13])
> LogicalJoin(condition=[AND(=($0, $11), =($9, $12))], joinType=[left])
> <---here is 't1.x=t2.x and (t1.x is null = t2.x is null)'
> LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3],
> HIREDATE=[$4], SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], $f9=[false],
> EMPNO0=[$0])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalAggregate(group=[{0, 1}], agg#0=[MIN($2)])
> LogicalProject(EMPNO=[$2], $f9=[$3], $f0=[true])
> LogicalJoin(condition=[=($2, $0)], joinType=[inner])
> LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
> LogicalProject(EMPNO=[$0], $f9=[false])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
>
> {code:java}
> EMP | DEPT
> +---------+ | +---------+
> | EMPNO | | | DEPTNO |
> +---------+ | +---------+
> | null | | | null |
> {code}
> expect result
> {code:java}
> EMPNO
> +-------+
> | null |
> +-------+{code}
> actual result
> {code:java}
> EMPNO
> +-------+
> +-------+ {code}
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
