Muhammad Gelbana created DRILL-5197:
---------------------------------------
Summary: CASE statement fails due to error: Unable to get value
vector class for minor type [NULL] and mode [OPTIONAL]
Key: DRILL-5197
URL: https://issues.apache.org/jira/browse/DRILL-5197
Project: Apache Drill
Issue Type: Bug
Components: Execution - Data Types
Affects Versions: 1.9.0
Reporter: Muhammad Gelbana
The following query fails for no obvious reason
{code:sql}
SELECT
CASE
WHEN `tname`.`full_name` = 'ABC'
THEN
(
CASE
WHEN `tname`.`full_name` = 'ABC'
THEN
(
CASE
WHEN `tname`.`full_name` = ' '
THEN
(
CASE
WHEN `tname`.`full_name` = 'ABC'
THEN `tname`.`full_name`
ELSE NULL
END
)
ELSE NULL
END
)
ELSE NULL
END
)
WHEN `tname`.`full_name` = 'ABC'
THEN NULL
ELSE NULL
END
FROM
cp.`employee.json` `tname`
{code}
If the `THEN `tname`.`full_name`` statements is changed to `THEN 'ABC'` the
error does not occur.
Thrown exception
{quote}
[Error Id: e75fd0fe-132b-4eb4-b2e8-7b34dc39657e on mgelbana-incorta:31010]
at
org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:543)
~[drill-common-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.work.fragment.FragmentExecutor.sendFinalState(FragmentExecutor.java:293)
[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:160)
[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:262)
[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
[drill-common-1.9.0.jar:1.9.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_111]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_111]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]
Caused by: java.lang.UnsupportedOperationException: Unable to get value vector
class for minor type [NULL] and mode [OPTIONAL]
at
org.apache.drill.exec.expr.BasicTypeHelper.getValueVectorClass(BasicTypeHelper.java:441)
~[vector-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.record.VectorContainer.addOrGet(VectorContainer.java:123)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.setupNewSchema(ProjectRecordBatch.java:463)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:78)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:135)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:104)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:81)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:94)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:232)
~[drill-java-exec-1.9.0.jar:1.9.0]
at
org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:226)
~[drill-java-exec-1.9.0.jar:1.9.0]
at java.security.AccessController.doPrivileged(Native Method)
~[na:1.8.0_111]
at javax.security.auth.Subject.doAs(Subject.java:422) ~[na:1.8.0_111]
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
~[hadoop-common-2.7.1.jar:na]
at
org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:226)
[drill-java-exec-1.9.0.jar:1.9.0]
... 4 common frames omitted
{quote}
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