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From "Hongze Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CALCITE-3045) NullPointerException when casting null literal to user defined type
Date Wed, 01 May 2019 07:50:00 GMT
Hongze Zhang created CALCITE-3045:
-------------------------------------

             Summary: NullPointerException when casting null literal to user defined type
                 Key: CALCITE-3045
                 URL: https://issues.apache.org/jira/browse/CALCITE-3045
             Project: Calcite
          Issue Type: Bug
            Reporter: Hongze Zhang
             Fix For: 1.20.0


You can reproduce the bug by running following test case from UdtTest.java:

{code:java}
  @Test public void testUdt2() {
    final String sql = "select CAST(null AS \"adhoc\".mytype2) as ld "
        + "from (VALUES ROW(1, 'SameName')) AS \"t\" (\"id\", \"desc\")";
    withUdt().query(sql).returns("LD=1\n");
  }
{code}

Error thrown:

{code}
java.sql.SQLException: Error while executing SQL "select CAST(null AS "adhoc".mytype2) as
ld from (VALUES ROW(1, 'SameName')) AS "t" ("id", "desc")": null

	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:163)
	at org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:227)
	at org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:522)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.lambda$returns$1(CalciteAssert.java:1440)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.withConnection(CalciteAssert.java:1372)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1438)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1421)
	at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1384)
	at org.apache.calcite.test.UdtTest.testUdt2(UdtTest.java:65)
	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.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$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
	Suppressed: org.apache.calcite.util.TestUtil$ExtraInformation: With materializationsEnabled=false,
limit=0
		at org.apache.calcite.util.TestUtil.rethrow(TestUtil.java:268)
		at org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:554)
		... 28 more
Caused by: java.lang.NullPointerException
	at java.base/java.util.Objects.requireNonNull(Objects.java:221)
	at org.apache.calcite.sql.validate.SqlValidatorImpl.setValidatedNodeType(SqlValidatorImpl.java:1616)
	at org.apache.calcite.sql2rel.StandardConvertletTable.convertCast(StandardConvertletTable.java:532)
	at org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:63)
	at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4758)
	at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4063)
	at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139)
	at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4627)
	at org.apache.calcite.sql2rel.StandardConvertletTable.lambda$new$9(StandardConvertletTable.java:208)
	at org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:63)
	at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4758)
	at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4063)
	at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139)
	at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4627)
	at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectList(SqlToRelConverter.java:3910)
	at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:671)
	at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:628)
	at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3152)
	at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:564)
	at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:265)
	at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:231)
	at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:771)
	at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:635)
	at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:605)
	at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:229)
	at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:550)
	at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:675)
	at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
	... 30 more
{code}



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