orc_create.q and other orc tests fail on the branch.

All these tests fail with the following trace:

[junit] java.lang.AssertionError
[junit] at org.apache.hadoop.hive.ql.exec.Utilities.getBaseWork(Utilities.java:260)
[junit] at org.apache.hadoop.hive.ql.exec.Utilities.getMapWork(Utilities.java:248)
[junit] at org.apache.hadoop.hive.ql.exec.Utilities.getMapRedWork(Utilities.java:242)
[junit] at org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.getRecordReader(OrcInputFormat.java:170)
[junit] at org.apache.hadoop.hive.ql.exec.FetchOperator.getRecordReader(FetchOperator.java:439)
[junit] at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:519)
[junit] at org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:495)
[junit] at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:136)
[junit] at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1487)
[junit] at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:271)
[junit] at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:216)
[junit] at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:413)
[junit] at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:348)
[junit] at org.apache.hadoop.hive.ql.QTestUtil.executeClient(QTestUtil.java:815)
[junit] at org.apache.hadoop.hive.cli.TestCliDriver.runTest(TestCliDriver.java:150)
[junit] at org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_orc_create(TestCliDriver.java:110)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[junit] at java.lang.reflect.Method.invoke(Method.java:597)
[junit] at junit.framework.TestCase.runTest(TestCase.java:154)
[junit] at junit.framework.TestCase.runBare(TestCase.java:127)
[junit] at junit.framework.TestResult$1.protect(TestResult.java:106)
[junit] at junit.framework.TestResult.runProtected(TestResult.java:124)
[junit] at junit.framework.TestResult.run(TestResult.java:109)
[junit] at junit.framework.TestCase.run(TestCase.java:118)
[junit] at junit.framework.TestSuite.runTest(TestSuite.java:208)
[junit] at junit.framework.TestSuite.run(TestSuite.java:203)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:518)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1052)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:906)