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Posted to issues@calcite.apache.org by "xiejiajun (Jira)" <ji...@apache.org> on 2021/12/25 10:10:00 UTC
[jira] [Comment Edited] (CALCITE-3557) ClassCastException for using nested multiset or array inside multiset
[ https://issues.apache.org/jira/browse/CALCITE-3557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17465163#comment-17465163 ]
xiejiajun edited comment on CALCITE-3557 at 12/25/21, 10:09 AM:
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I analyzed this problem and got three conclusions:
1. The repair method for array inside multiset case is correct
2. Avatica already supports map type
3. The nested multiset problem should be in linq4j: 1 - > [1]
!image-2021-12-25-18-06-21-066.png|width=376,height=268!
So the exception message is{color:#FF0000} [Ljava.lang.Object; cannot be cast to java.lang.Integer{color}
was (Author: jiajunbernoulli):
I analyzed this problem and got three conclusions:
1. The repair method for array inside multiset case is correct
2. Avatica already supports map type
3. The nested multiset problem should be in linq4j: 1 - > [1]
!image-2021-12-25-18-06-21-066.png!
So the exception message is{color:red} [Ljava.lang.Object; cannot be cast to java.lang.Integer{color}
> ClassCastException for using nested multiset or array inside multiset
> ---------------------------------------------------------------------
>
> Key: CALCITE-3557
> URL: https://issues.apache.org/jira/browse/CALCITE-3557
> Project: Calcite
> Issue Type: Bug
> Reporter: Wang Yanlin
> Assignee: Jiatao Tao
> Priority: Major
> Attachments: image-2021-12-25-18-06-21-066.png
>
>
> {code:java}
> // 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$0=[[1, 2], [3, 4]]\n");
> }
> {code}
> Got
> {code:java}
> java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.lang.Integer
> at org.apache.calcite.avatica.util.AbstractCursor$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
> {code}
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