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https://issues.apache.org/jira/browse/IGNITE-25353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aleksey Plekhanov reassigned IGNITE-25353:
------------------------------------------
Assignee: Aleksey Plekhanov
> 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
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: calcite, ise
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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