[ 
https://issues.apache.org/jira/browse/IGNITE-25353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Aleksey Plekhanov updated IGNITE-25353:
---------------------------------------
    Description: 
Reproducer:
{code:java}
/** */
@Test
public void testNvl() throws Exception {
    IgniteSchema schema = createSchema(
        createTable("T1", IgniteDistributions.single(), "ID", Integer.class),
        createTable("T2", IgniteDistributions.single(), "ID", Integer.class)
    );

    assertPlan("SELECT NVL((SELECT MAX('0') FROM T1 WHERE T1.ID = T2.ID), '1') 
FROM T2", schema,
        nodeOrAnyChild(isTableScan("T2")));
} {code}
Fails with:

 
{noformat}
Unexpected error at query optimizer.
 java.lang.AssertionError: Conversion to relational algebra failed to preserve 
datatypes:
validated type:
RecordType(CHAR(1) CHARACTER SET "UTF-8" NOT NULL EXPR$0) NOT NULL
converted type:
RecordType(CHAR(1) CHARACTER SET "UTF-8" EXPR$0) NOT NULL
rel:
LogicalProject(variablesSet=[[$cor0]], EXPR$0=[CASE(IS NOT NULL($SCALAR_QUERY({
LogicalAggregate(group=[{}], EXPR$0=[MAX($0)])
  LogicalProject($f0=[_UTF-8'0'])
    LogicalFilter(condition=[=($0, $cor0.ID)])
      IgniteLogicalTableScan(table=[[PUBLIC, T1]])
})), $SCALAR_QUERY({
LogicalAggregate(group=[{}], EXPR$0=[MAX($0)])
  LogicalProject($f0=[_UTF-8'0'])
    LogicalFilter(condition=[=($0, $cor0.ID)])
      IgniteLogicalTableScan(table=[[PUBLIC, T1]])
}), _UTF-8'1')])
  IgniteLogicalTableScan(table=[[PUBLIC, T2]])

        at 
org.apache.calcite.sql2rel.SqlToRelConverter.checkConvertedType(SqlToRelConverter.java:510)
 ~[calcite-core-1.37.0.jar:1.37.0]
        at 
org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:625)
 ~[calcite-core-1.37.0.jar:1.37.0]
        at 
org.apache.ignite.internal.processors.query.calcite.prepare.IgnitePlanner.rel(IgnitePlanner.java:344)
 ~[classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.prepare.PlannerHelper.optimize(PlannerHelper.java:111)
 [classes/:?]
 {noformat}
 

 

  was:
Reproducer:
{code:java}
/** */
@Test
public void testNvl() throws Exception {
    IgniteSchema schema = createSchema(
        createTable("T1", IgniteDistributions.single(), "ID", Integer.class),
        createTable("T2", IgniteDistributions.single(), "ID", Integer.class)
    );

    assertPlan("SELECT NVL((SELECT MAX('0') FROM T1 WHERE T1.ID = T2.ID), '1') 
FROM T2", schema,
        nodeOrAnyChild(isTableScan("T2")));
} {code}
Fails with:

 
{noformat}
Unexpected error at query optimizer.
 java.lang.AssertionError: Conversion to relational algebra failed to preserve 
datatypes:
validated type:
RecordType(CHAR(1) CHARACTER SET "UTF-8" NOT NULL EXPR$0) NOT NULL
converted type:
RecordType(CHAR(1) CHARACTER SET "UTF-8" EXPR$0) NOT NULL
rel:
LogicalProject(variablesSet=[[$cor0]], EXPR$0=[CASE(IS NOT NULL($SCALAR_QUERY({
LogicalAggregate(group=[{}], EXPR$0=[MAX($0)])
  LogicalProject($f0=[_UTF-8'0'])
    LogicalFilter(condition=[=($0, $cor0.ID)])
      IgniteLogicalTableScan(table=[[PUBLIC, T1]])
})), $SCALAR_QUERY({
LogicalAggregate(group=[{}], EXPR$0=[MAX($0)])
  LogicalProject($f0=[_UTF-8'0'])
    LogicalFilter(condition=[=($0, $cor0.ID)])
      IgniteLogicalTableScan(table=[[PUBLIC, T1]])
}), _UTF-8'1')])
  IgniteLogicalTableScan(table=[[PUBLIC, T2]])

        at 
org.apache.calcite.sql2rel.SqlToRelConverter.checkConvertedType(SqlToRelConverter.java:510)
 ~[calcite-core-1.37.0.jar:1.37.0]
        at 
org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:625)
 ~[calcite-core-1.37.0.jar:1.37.0]
        at 
org.apache.ignite.internal.processors.query.calcite.prepare.IgnitePlanner.rel(IgnitePlanner.java:344)
 ~[classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.prepare.PlannerHelper.optimize(PlannerHelper.java:111)
 [classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.planner.AbstractPlannerTest.physicalPlan(AbstractPlannerTest.java:295)
 [test-classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.planner.AbstractPlannerTest.physicalPlan(AbstractPlannerTest.java:282)
 [test-classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.planner.AbstractPlannerTest.assertPlan(AbstractPlannerTest.java:483)
 [test-classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.planner.AbstractPlannerTest.assertPlan(AbstractPlannerTest.java:503)
 [test-classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.planner.AbstractPlannerTest.assertPlan(AbstractPlannerTest.java:462)
 [test-classes/:?]
        at 
org.apache.ignite.internal.processors.query.calcite.planner.JoinColocationPlannerTest.testNvl(JoinColocationPlannerTest.java:235)
 [test-classes/:?]
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
~[?:?]
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 ~[?:?]
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:?]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
 [junit-4.12.jar:4.12]
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
 [junit-4.12.jar:4.12]
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
 [junit-4.12.jar:4.12]
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
 [junit-4.12.jar:4.12]
        at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
[junit-4.12.jar:4.12]
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) 
[junit-4.12.jar:4.12]
        at 
org.apache.ignite.testframework.junits.GridAbstractTest$6.run(GridAbstractTest.java:2491)
 [test-classes/:?]
        at java.base/java.lang.Thread.run(Thread.java:829) [?:?]
 {noformat}
 

 


> Calcite engine. NVL with correlated subquery can't be planned
> -------------------------------------------------------------
>
>                 Key: IGNITE-25353
>                 URL: https://issues.apache.org/jira/browse/IGNITE-25353
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Aleksey Plekhanov
>            Priority: Major
>              Labels: calcite, ise
>
> Reproducer:
> {code:java}
> /** */
> @Test
> public void testNvl() throws Exception {
>     IgniteSchema schema = createSchema(
>         createTable("T1", IgniteDistributions.single(), "ID", Integer.class),
>         createTable("T2", IgniteDistributions.single(), "ID", Integer.class)
>     );
>     assertPlan("SELECT NVL((SELECT MAX('0') FROM T1 WHERE T1.ID = T2.ID), 
> '1') FROM T2", schema,
>         nodeOrAnyChild(isTableScan("T2")));
> } {code}
> Fails with:
>  
> {noformat}
> Unexpected error at query optimizer.
>  java.lang.AssertionError: Conversion to relational algebra failed to 
> preserve datatypes:
> validated type:
> RecordType(CHAR(1) CHARACTER SET "UTF-8" NOT NULL EXPR$0) NOT NULL
> converted type:
> RecordType(CHAR(1) CHARACTER SET "UTF-8" EXPR$0) NOT NULL
> rel:
> LogicalProject(variablesSet=[[$cor0]], EXPR$0=[CASE(IS NOT 
> NULL($SCALAR_QUERY({
> LogicalAggregate(group=[{}], EXPR$0=[MAX($0)])
>   LogicalProject($f0=[_UTF-8'0'])
>     LogicalFilter(condition=[=($0, $cor0.ID)])
>       IgniteLogicalTableScan(table=[[PUBLIC, T1]])
> })), $SCALAR_QUERY({
> LogicalAggregate(group=[{}], EXPR$0=[MAX($0)])
>   LogicalProject($f0=[_UTF-8'0'])
>     LogicalFilter(condition=[=($0, $cor0.ID)])
>       IgniteLogicalTableScan(table=[[PUBLIC, T1]])
> }), _UTF-8'1')])
>   IgniteLogicalTableScan(table=[[PUBLIC, T2]])
>       at 
> org.apache.calcite.sql2rel.SqlToRelConverter.checkConvertedType(SqlToRelConverter.java:510)
>  ~[calcite-core-1.37.0.jar:1.37.0]
>       at 
> org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:625)
>  ~[calcite-core-1.37.0.jar:1.37.0]
>       at 
> org.apache.ignite.internal.processors.query.calcite.prepare.IgnitePlanner.rel(IgnitePlanner.java:344)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.processors.query.calcite.prepare.PlannerHelper.optimize(PlannerHelper.java:111)
>  [classes/:?]
>  {noformat}
>  
>  



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