[CALCITE-2474] SqlAdvisor: NPE in lookupFromHints where FROM is empty

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.17.0
• Fix Version/s: 1.18.0
• Component/s: core
• Assignee: Vladimir Sitnikov
• Reporter: Vladimir Sitnikov
• Created: 19/Aug/18 10:53
• Updated: 23/Dec/18 00:12
• Resolved: 05/Sep/18 14:19

Description

select * from^

java.lang.NullPointerException
	at org.apache.calcite.sql.validate.SqlValidatorImpl.getNamespace(SqlValidatorImpl.java:1070)
	at org.apache.calcite.sql.validate.SqlValidatorImpl.lookupFromHints(SqlValidatorImpl.java:707)
	at org.apache.calcite.sql.validate.SqlValidatorImpl.lookupSelectHints(SqlValidatorImpl.java:685)
	at org.apache.calcite.sql.validate.SqlValidatorImpl.lookupSelectHints(SqlValidatorImpl.java:698)
	at org.apache.calcite.sql.validate.SqlValidatorImpl.lookupHints(SqlValidatorImpl.java:652)
	at org.apache.calcite.sql.advise.SqlAdvisor.getCompletionHints(SqlAdvisor.java:350)
	at org.apache.calcite.sql.advise.SqlAdvisor.getCompletionHints0(SqlAdvisor.java:210)
	at org.apache.calcite.sql.advise.SqlAdvisor.getCompletionHints(SqlAdvisor.java:173)
	at org.apache.calcite.sql.test.SqlAdvisorTest.assertComplete(SqlAdvisorTest.java:498)
	at org.apache.calcite.sql.test.SqlAdvisorTest.testAdviceEmptyFrom(SqlAdvisorTest.java:1349)
	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$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.apache.calcite.test.SqlValidatorTestCase$TesterConfigurationRule$1.evaluate(SqlValidatorTestCase.java:663)

Issue Links

• links to: PR 773