[
https://issues.apache.org/jira/browse/IGNITE-24567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vladimir Steshin updated IGNITE-24567:
--------------------------------------
Description:
*Reproducer:*
{code:java}
sql("CREATE TABLE TEST(ID INTEGER PRIMARY KEY, VAL0 INTEGER, VAL1
INTEGER, GRP0 INTEGER, GRP1 INTEGER)");
int sz = 5000;
for (int i = 0; i < sz; ++i)
sql("INSERT INTO TEST VALUES(?,?,?,?,?)", i, i % 2, i % 3, i % 4, i
% 5);
assertQuery("SELECT (SELECT val0 FROM TEST t ORDER BY 1 LIMIT 2) FROM
TEST").returns(0).returns(1).check();
{code}
*Plan:*
{code:java}
IgniteProject(EXPR$0=[$1])
IgniteNestedLoopJoin(condition=[true], joinType=[left])
IgniteExchange(distribution=[single])
IgniteIndexScan(table=[[PUBLIC, TEST]], index=[_key_PK], projects=[[0]],
requiredColumns=[{}], collation=[[0 ASC-nulls-first]])
IgniteColocatedHashAggregate(group=[{}], agg#0=[SINGLE_VALUE($0)])
IgniteLimit(fetch=[2])
IgniteExchange(distribution=[single])
IgniteSort(sort0=[$0], dir0=[ASC-nulls-first], fetch=[2])
IgniteTableScan(table=[[PUBLIC, TEST]], requiredColumns=[{3}])
{code}
*Result:*
{code:java}
Caused by: java.lang.IllegalArgumentException: Subquery returned more than 1
value.
at
org.apache.ignite.internal.processors.query.calcite.exec.exp.agg.Accumulators$SingleVal.add(Accumulators.java:322)
at
org.apache.ignite.internal.processors.query.calcite.exec.exp.agg.AccumulatorsFactory$AccumulatorWrapperImpl.add(AccumulatorsFactory.java:331)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode$Grouping.addOnMapper(HashAggregateNode.java:329)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode$Grouping.add(HashAggregateNode.java:304)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode.push(HashAggregateNode.java:132)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.LimitNode.push(LimitNode.java:99)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.pushOrdered(Inbox.java:252)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.push(Inbox.java:201)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.onBatchReceived(Inbox.java:177)
at
org.apache.ignite.internal.processors.query.calcite.exec.ExchangeServiceImpl.onMessage(ExchangeServiceImpl.java:324)
at
org.apache.ignite.internal.processors.query.calcite.exec.ExchangeServiceImpl.lambda$init$2(ExchangeServiceImpl.java:195)
at
org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.onMessageInternal(MessageServiceImpl.java:233)
at
org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.lambda$onMessage$0(MessageServiceImpl.java:211)
at
org.apache.ignite.internal.processors.query.calcite.exec.task.AbstractQueryTaskExecutor$SecurityAwareTask.run(AbstractQueryTaskExecutor.java:75)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
{code}
_SubQueryRemoveRule #rewriteScalarQuery()_ rule adds aggregate
_SqlStdOperatorTable.SINGLE_VALUE_ which forbids several values at input. But
the input is a table scan in this case.
As far as I can see, same test in Calcite raises the same error:
{code:java}
// Some comments here
@Test void testTest0() {
String sql = "select (SELECT \"salary\" FROM \"hr\".\"emps\" e order by 1
limit 2) from \"hr\".\"emps\"";
CalciteAssert.hr().query(sql).returnsOrdered("salary=7000.0",
"salary=8000.0");
}
{code}
{code:java}
Error while executing SQL "select (SELECT "salary" FROM "hr"."emps" e order by
1 limit 2) from "hr"."emps"": more than one value in agg SINGLE_VALUE
java.sql.SQLException: Error while executing SQL "select (SELECT "salary" FROM
"hr"."emps" e order by 1 limit 2) from "hr"."emps"": more than one value
...
Caused by: java.lang.IllegalStateException: more than one value in agg
SINGLE_VALUE
at Baz$2.apply(Unknown Source)
at Baz$2.apply(Unknown Source)
at Baz$2.apply(Unknown Source)
at
org.apache.calcite.adapter.enumerable.BasicAggregateLambdaFactory$AccumulatorAdderSeq.apply(BasicAggregateLambdaFactory.java:81)
at
org.apache.calcite.linq4j.EnumerableDefaults.aggregate(EnumerableDefaults.java:133)
at
org.apache.calcite.linq4j.DefaultEnumerable.aggregate(DefaultEnumerable.java:107)
at Baz.bind(Unknown Source)
at
org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:367)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:335)
at
org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:657)
{code}
was:
*Reproducer:*
{code:java}
sql("CREATE TABLE TEST(ID INTEGER PRIMARY KEY, VAL0 INTEGER, VAL1
INTEGER, GRP0 INTEGER, GRP1 INTEGER)");
int sz = 5000;
for (int i = 0; i < sz; ++i)
sql("INSERT INTO TEST VALUES(?,?,?,?,?)", i, i % 2, i % 3, i % 4, i
% 5);
assertQuery("SELECT (SELECT val0 FROM TEST t ORDER BY 1 LIMIT 2) FROM
TEST").returns(0).returns(1).check();
{code}
*Plan:*
{code:java}
IgniteProject(EXPR$0=[$1])
IgniteNestedLoopJoin(condition=[true], joinType=[left])
IgniteExchange(distribution=[single])
IgniteIndexScan(table=[[PUBLIC, TEST]], index=[_key_PK], projects=[[0]],
requiredColumns=[{}], collation=[[0 ASC-nulls-first]])
IgniteColocatedHashAggregate(group=[{}], agg#0=[SINGLE_VALUE($0)])
IgniteLimit(fetch=[2])
IgniteExchange(distribution=[single])
IgniteSort(sort0=[$0], dir0=[ASC-nulls-first], fetch=[2])
IgniteTableScan(table=[[PUBLIC, TEST]], requiredColumns=[{3}])
{code}
*Result:*
{code:java}
class org.apache.ignite.internal.processors.query.IgniteSQLException: An error
occurred while query executing - Subquery returned more than 1 value.
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.RootNode.checkException(RootNode.java:330)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.RootNode.exchangeBuffers(RootNode.java:317)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.RootNode.hasNext(RootNode.java:216)
at
org.apache.ignite.internal.processors.query.calcite.exec.ClosableIteratorsHolder$DelegatingIterator.hasNext(ClosableIteratorsHolder.java:122)
at
org.apache.ignite.internal.processors.query.calcite.util.ConvertingClosableIterator.hasNext(ConvertingClosableIterator.java:71)
at
org.apache.ignite.internal.processors.query.calcite.util.ListFieldsQueryCursor.getAll(ListFieldsQueryCursor.java:105)
at
org.apache.ignite.internal.processors.query.calcite.util.ListFieldsQueryCursor.getAll(ListFieldsQueryCursor.java:87)
at
org.apache.ignite.internal.processors.query.calcite.QueryChecker.check(QueryChecker.java:442)
at
org.apache.ignite.internal.processors.query.calcite.integration.AggregatesIntegrationTest.test0(AggregatesIntegrationTest.java:52)
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)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.apache.ignite.testframework.junits.GridAbstractTest$6.run(GridAbstractTest.java:2507)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.IllegalArgumentException: Subquery returned more than 1
value.
at
org.apache.ignite.internal.processors.query.calcite.exec.exp.agg.Accumulators$SingleVal.add(Accumulators.java:322)
at
org.apache.ignite.internal.processors.query.calcite.exec.exp.agg.AccumulatorsFactory$AccumulatorWrapperImpl.add(AccumulatorsFactory.java:331)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode$Grouping.addOnMapper(HashAggregateNode.java:329)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode$Grouping.add(HashAggregateNode.java:304)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode.push(HashAggregateNode.java:132)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.LimitNode.push(LimitNode.java:99)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.pushOrdered(Inbox.java:252)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.push(Inbox.java:201)
at
org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.onBatchReceived(Inbox.java:177)
at
org.apache.ignite.internal.processors.query.calcite.exec.ExchangeServiceImpl.onMessage(ExchangeServiceImpl.java:324)
at
org.apache.ignite.internal.processors.query.calcite.exec.ExchangeServiceImpl.lambda$init$2(ExchangeServiceImpl.java:195)
at
org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.onMessageInternal(MessageServiceImpl.java:233)
at
org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.lambda$onMessage$0(MessageServiceImpl.java:211)
at
org.apache.ignite.internal.processors.query.calcite.exec.task.AbstractQueryTaskExecutor$SecurityAwareTask.run(AbstractQueryTaskExecutor.java:75)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
{code}
_SubQueryRemoveRule #rewriteScalarQuery()_ rule adds aggregate
_SqlStdOperatorTable.SINGLE_VALUE_ which forbids several values at input. But
the input is a table scan in this case.
As far as I can see, same test in Calcite raises the same error:
{code:java}
// Some comments here
@Test void testTest0() {
String sql = "select (SELECT \"salary\" FROM \"hr\".\"emps\" e order by 1
limit 2) from \"hr\".\"emps\"";
CalciteAssert.hr().query(sql).returnsOrdered("salary=7000.0",
"salary=8000.0");
}
{code}
{code:java}
Error while executing SQL "select (SELECT "salary" FROM "hr"."emps" e order by
1 limit 2) from "hr"."emps"": more than one value in agg SINGLE_VALUE
java.sql.SQLException: Error while executing SQL "select (SELECT "salary" FROM
"hr"."emps" e order by 1 limit 2) from "hr"."emps"": more than one value in agg
SINGLE_VALUE
at org.apache.calcite.avatica.Helper.createException(Helper.java:56)
at org.apache.calcite.avatica.Helper.createException(Helper.java:41)
at
org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:164)
at
org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:228)
at
org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:571)
at
org.apache.calcite.test.CalciteAssert$AssertQuery.lambda$returns$1(CalciteAssert.java:1542)
at
org.apache.calcite.test.CalciteAssert$AssertQuery.withConnection(CalciteAssert.java:1481)
at
org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1540)
at
org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1530)
at
org.apache.calcite.test.CalciteAssert$AssertQuery.returnsOrdered(CalciteAssert.java:1556)
at org.apache.calcite.test.JdbcTest.testTest0(JdbcTest.java:5417)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)
at
org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
at
org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
at
org.junit.jupiter.engine.extension.SameThreadTimeoutInvocation.proceed(SameThreadTimeoutInvocation.java:45)
at
org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
at
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
at
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
at
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
at
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
at
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
at
org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
at
org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
at
org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
at
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
at
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at
org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at
org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService.invokeAll(ForkJoinPoolHierarchicalTestExecutorService.java:129)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at
org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at
org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService.invokeAll(ForkJoinPoolHierarchicalTestExecutorService.java:129)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at
org.junit.platform.engine.support.hierarchical.ForkJoinPoolHierarchicalTestExecutorService$ExclusiveTask.compute(ForkJoinPoolHierarchicalTestExecutorService.java:185)
at
java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189)
at
java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at
java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
at
java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
at
java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
at
java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Suppressed: org.apache.calcite.util.TestUtil$ExtraInformation: With
materializationsEnabled=false, limit=-1
at
app//org.apache.calcite.util.TestUtil.rethrow(TestUtil.java:402)
at
app//org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:610)
... 65 more
Caused by: java.lang.IllegalStateException: more than one value in agg
SINGLE_VALUE
at Baz$2.apply(Unknown Source)
at Baz$2.apply(Unknown Source)
at Baz$2.apply(Unknown Source)
at
org.apache.calcite.adapter.enumerable.BasicAggregateLambdaFactory$AccumulatorAdderSeq.apply(BasicAggregateLambdaFactory.java:81)
at
org.apache.calcite.linq4j.EnumerableDefaults.aggregate(EnumerableDefaults.java:133)
at
org.apache.calcite.linq4j.DefaultEnumerable.aggregate(DefaultEnumerable.java:107)
at Baz.bind(Unknown Source)
at
org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:367)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:335)
at
org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:657)
{code}
> Calcite. SINGLE_VALUE function may raise exception with subquery.
> -----------------------------------------------------------------
>
> Key: IGNITE-24567
> URL: https://issues.apache.org/jira/browse/IGNITE-24567
> Project: Ignite
> Issue Type: Bug
> Reporter: Vladimir Steshin
> Priority: Minor
> Labels: calcite, ignite-2, ise
>
> *Reproducer:*
> {code:java}
> sql("CREATE TABLE TEST(ID INTEGER PRIMARY KEY, VAL0 INTEGER, VAL1
> INTEGER, GRP0 INTEGER, GRP1 INTEGER)");
> int sz = 5000;
> for (int i = 0; i < sz; ++i)
> sql("INSERT INTO TEST VALUES(?,?,?,?,?)", i, i % 2, i % 3, i % 4,
> i % 5);
> assertQuery("SELECT (SELECT val0 FROM TEST t ORDER BY 1 LIMIT 2) FROM
> TEST").returns(0).returns(1).check();
> {code}
> *Plan:*
> {code:java}
> IgniteProject(EXPR$0=[$1])
> IgniteNestedLoopJoin(condition=[true], joinType=[left])
> IgniteExchange(distribution=[single])
> IgniteIndexScan(table=[[PUBLIC, TEST]], index=[_key_PK],
> projects=[[0]], requiredColumns=[{}], collation=[[0 ASC-nulls-first]])
> IgniteColocatedHashAggregate(group=[{}], agg#0=[SINGLE_VALUE($0)])
> IgniteLimit(fetch=[2])
> IgniteExchange(distribution=[single])
> IgniteSort(sort0=[$0], dir0=[ASC-nulls-first], fetch=[2])
> IgniteTableScan(table=[[PUBLIC, TEST]], requiredColumns=[{3}])
> {code}
> *Result:*
> {code:java}
> Caused by: java.lang.IllegalArgumentException: Subquery returned more than 1
> value.
> at
> org.apache.ignite.internal.processors.query.calcite.exec.exp.agg.Accumulators$SingleVal.add(Accumulators.java:322)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.exp.agg.AccumulatorsFactory$AccumulatorWrapperImpl.add(AccumulatorsFactory.java:331)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode$Grouping.addOnMapper(HashAggregateNode.java:329)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode$Grouping.add(HashAggregateNode.java:304)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.HashAggregateNode.push(HashAggregateNode.java:132)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.LimitNode.push(LimitNode.java:99)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.pushOrdered(Inbox.java:252)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.push(Inbox.java:201)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.rel.Inbox.onBatchReceived(Inbox.java:177)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.ExchangeServiceImpl.onMessage(ExchangeServiceImpl.java:324)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.ExchangeServiceImpl.lambda$init$2(ExchangeServiceImpl.java:195)
> at
> org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.onMessageInternal(MessageServiceImpl.java:233)
> at
> org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.lambda$onMessage$0(MessageServiceImpl.java:211)
> at
> org.apache.ignite.internal.processors.query.calcite.exec.task.AbstractQueryTaskExecutor$SecurityAwareTask.run(AbstractQueryTaskExecutor.java:75)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> {code}
> _SubQueryRemoveRule #rewriteScalarQuery()_ rule adds aggregate
> _SqlStdOperatorTable.SINGLE_VALUE_ which forbids several values at input. But
> the input is a table scan in this case.
> As far as I can see, same test in Calcite raises the same error:
> {code:java}
> // Some comments here
> @Test void testTest0() {
> String sql = "select (SELECT \"salary\" FROM \"hr\".\"emps\" e order by 1
> limit 2) from \"hr\".\"emps\"";
> CalciteAssert.hr().query(sql).returnsOrdered("salary=7000.0",
> "salary=8000.0");
> }
> {code}
> {code:java}
> Error while executing SQL "select (SELECT "salary" FROM "hr"."emps" e order
> by 1 limit 2) from "hr"."emps"": more than one value in agg SINGLE_VALUE
> java.sql.SQLException: Error while executing SQL "select (SELECT "salary"
> FROM "hr"."emps" e order by 1 limit 2) from "hr"."emps"": more than one value
> ...
> Caused by: java.lang.IllegalStateException: more than one value in agg
> SINGLE_VALUE
> at Baz$2.apply(Unknown Source)
> at Baz$2.apply(Unknown Source)
> at Baz$2.apply(Unknown Source)
> at
> org.apache.calcite.adapter.enumerable.BasicAggregateLambdaFactory$AccumulatorAdderSeq.apply(BasicAggregateLambdaFactory.java:81)
> at
> org.apache.calcite.linq4j.EnumerableDefaults.aggregate(EnumerableDefaults.java:133)
> at
> org.apache.calcite.linq4j.DefaultEnumerable.aggregate(DefaultEnumerable.java:107)
> at Baz.bind(Unknown Source)
> at
> org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:367)
> at
> org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:335)
> at
> org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:657)
> {code}
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