[CALCITE-3557] ResultSet.getObject throws ClassCastException when accessing a MULTISET or ARRAY value inside a MULTISET

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: avatica-1.23.0
• Component/s: avatica
• Labels: pull-request-available
• Assignee: Jiajun Xie
• Reporter: Wang Yanlin
• Created: 03/Dec/19 12:00
• Updated: 19/Jan/23 21:52
• Resolved: 15/Jan/23 23:22

Description

// JdbcTest
@Test public void testNestedMultiset() {
    CalciteAssert.that()
        .query("select multiset[ARRAY[1, 2], ARRAY[3, 4]]")
        .returns("EXPR$0=[[1, 2], [3, 4]]\n");

    CalciteAssert.that()
        .query("select multiset[multiset[1, 2], multiset[3, 4]]")
        .returns("EXPR$0=[[1, 2], [3, 4]]\n");
  }

Got

java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.lang.Integer

	at org.apache.calcite.avatica.util.AbstractCursor$IntAccessor.getInt(AbstractCursor.java:541)
	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.convertValue(AbstractCursor.java:1318)
	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getObject(AbstractCursor.java:1299)
	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getArray(AbstractCursor.java:1352)
	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.convertValue(AbstractCursor.java:1326)
	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getObject(AbstractCursor.java:1299)
	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getArray(AbstractCursor.java:1352)
	at org.apache.calcite.avatica.AvaticaSite.get(AvaticaSite.java:305)
	at org.apache.calcite.avatica.AvaticaResultSet.getObject(AvaticaResultSet.java:393)
	at org.apache.calcite.test.CalciteAssert$ResultSetFormatter.rowToString(CalciteAssert.java:1978)
	at org.apache.calcite.test.CalciteAssert$ResultSetFormatter.resultSet(CalciteAssert.java:1966)
	at org.apache.calcite.test.CalciteAssert.lambda$checkResult$2(CalciteAssert.java:303)
	at org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:544)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.lambda$returns$1(CalciteAssert.java:1514)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.withConnection(CalciteAssert.java:1446)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1512)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1495)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1458)
	at org.apache.calcite.test.JdbcTest.testNestedMultiset(JdbcTest.java:2057)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	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.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
	Suppressed: org.apache.calcite.util.TestUtil$ExtraInformation: With materializationsEnabled=false, limit=0, sql=select multiset[multiset[1, 2], multiset[3, 4]]
		at org.apache.calcite.util.TestUtil.rethrow(TestUtil.java:268)
		at org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:560)
		... 28 more

Issue Links

• links to: GitHub Pull Request #179
• links to: GitHub Pull Request #2662
• links to: GitHub Pull Request #2790