[HIVE-9377] UDF in_file() in WHERE predicate causes NPE.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.14.0
• Fix Version/s: 1.0.2, 1.1.0
• Component/s: UDF
• Assignee: Mithun Radhakrishnan
• Reporter: Mithun Radhakrishnan
• Created: 14/Jan/15 19:41
• Updated: 11/Aug/15 02:39
• Resolved: 16/Jan/15 16:59

Description

Consider the following query:

SELECT foo, bar from mythdb.foobar where in_file( bar, '/tmp/bar_list.txt' );

Using in_file() in a WHERE predicate causes the following NPE:

java.lang.NullPointerException
	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.getWritableConstantValue(ObjectInspectorUtils.java:1041)
	at org.apache.hadoop.hive.ql.udf.generic.GenericUDFInFile.getRequiredFiles(GenericUDFInFile.java:93)
	at org.apache.hadoop.hive.ql.optimizer.ConstantPropagateProcFactory.isDeterministicUdf(ConstantPropagateProcFactory.java:303)
	at org.apache.hadoop.hive.ql.optimizer.ConstantPropagateProcFactory.foldExpr(ConstantPropagateProcFactory.java:226)
	at org.apache.hadoop.hive.ql.optimizer.ConstantPropagateProcFactory.access$000(ConstantPropagateProcFactory.java:92)
	at org.apache.hadoop.hive.ql.optimizer.ConstantPropagateProcFactory$ConstantPropagateFilterProc.process(ConstantPropagateProcFactory.java:623)
	at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
	at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:94)
	at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:78)
	at org.apache.hadoop.hive.ql.optimizer.ConstantPropagate$ConstantPropagateWalker.walk(ConstantPropagate.java:147)
	at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:109)
	at org.apache.hadoop.hive.ql.optimizer.ConstantPropagate.transform(ConstantPropagate.java:117)
	at org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize(Optimizer.java:177)
	at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10032)
	at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:189)
	at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:224)
	at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:420)
	at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:306)
	at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1108)
	at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1156)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1045)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1035)
	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:206)
	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:158)
	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:369)
	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:304)
	at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:701)
	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:674)
	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:614)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hadoop.util.RunJar.main(RunJar.java:212)

I have a tentative fix I need advice on.