Wang Weidong created CALCITE-3299:
-------------------------------------
Summary: Handle validating exception for SqlNode of select star
converted by RelNode
Key: CALCITE-3299
URL: https://issues.apache.org/jira/browse/CALCITE-3299
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.21.0
Reporter: Wang Weidong
Assignee: Wang Weidong
h4. Procedure to reproduce the problem:
- create table {{~^t^~}}
- parse query ^{{~select * from t~}}^ to SqlNode
- convert SqlNode to RelNode
- convert RelNode to SqlNode
- validate the result SqlNode
test code is like this
{code:java}
// code placeholder
@Test
public void testSelectAll() throws Exception {
try (Statement s = parserContext.getStatement()) {
s.execute("create table if not exists t (i int not null)");
String sql = "select * from t";
SqlNode sqlNode = parserContext.parseStmt(sql);
parserContext.getSqlValidator().validate(sqlNode);
RelNode relNode =
parserContext.getSqlToRelConverter().convertQuery(sqlNode, true, true).rel;
SqlNode sqlNodeNew = toSqlNode(relNode);
parserContext.getSqlValidator().validate(sqlNodeNew);
}
}
{code}
Finally we will get an exception as follow:
{code:java}
// code placeholder
org.apache.calcite.rel.rel2sql.SqlImplementor#wrapSelectorg.apache.calcite.rel.rel2sql.SqlImplementor#wrapSelectjava.lang.NullPointerException
at org.apache.calcite.sql.validate.AggFinder.findAgg(AggFinder.java:58) at
org.apache.calcite.sql.validate.SqlValidatorImpl.getAgg(SqlValidatorImpl.java:2774)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.getAggregate(SqlValidatorImpl.java:2761)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.isAggregate(SqlValidatorImpl.java:2720)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.registerQuery(SqlValidatorImpl.java:2406)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.registerQuery(SqlValidatorImpl.java:2326)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:916)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:628)
at org.apache.calcite.test.OptimizeTest.testSelectAll(OptimizeTest.java:206)
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$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
at org.junit.rules.RunRules.evaluate(RunRules.java:20) 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)
{code}
--
This message was sent by Atlassian Jira
(v8.3.2#803003)
