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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2119) Drill interpreting a scalar as a map or array in an order by stmt when used with flatten
Date Thu, 29 Jan 2015 21:19:34 GMT
Rahul Challapalli created DRILL-2119:
----------------------------------------

             Summary: Drill interpreting a scalar as a map or array in an order by stmt when
used with flatten
                 Key: DRILL-2119
                 URL: https://issues.apache.org/jira/browse/DRILL-2119
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Operators
            Reporter: Rahul Challapalli
            Assignee: Jason Altekruse


git.commit.id.abbrev=3e33880

Data Set :
{code}
{
    "uid": 1,
    "map": {
        "rm": [
            {
                "mapid": "m1",
                "mapvalue": {
                    "col1": 1,
                    "col2": [0,1,2,3,4,5]
                },
                "rptd": [
                    { "a": "foo"},
                    { "b": "boo"}
                ]
            },
            {
                "mapid": "m2",
                "mapvalue": {
                    "col1": 0,
                    "col2": []
                },
                "rptd": [
                    { "a": "bar"},
                    { "c": 1},
                    { "d": 4.5}
                ]
            }
        ]
    },
    "lst_lst" : [[1,2,3,4,5],[2,3,4,5,6]]
}
{code}

Query :
{code}
select flatten(rptd) from (select uid, d.map.rm[0].rptd rptd, flatten(d.lst_lst[1]) lst1 from
`temp4.json` d) s1 order by s1.lst1;
{code}

When we remove the flatten from the top level query, things work fine
{code}
select s1.lst1 from (select uid, d.map.rm[0].rptd rptd, flatten(d.lst_lst[1]) lst1 from `temp4.json`
d) s1 order by s1.lst1
+------------+
|    lst1    |
+------------+
| 2          |
| 3          |
| 4          |
| 5          |
| 6          |
+------------+
{code}


Log File contents for the error
{code}
java.lang.RuntimeException: java.lang.UnsupportedOperationException: Map, Array or repeated
scalar type should not be used in group by, order by or in a comparison operator. Drill does
not support compare between MAP:REQUIRED and MAP:REQUIRED.
        at org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.innerNext(ExternalSortBatch.java:408)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext(RemovingRecordBatch.java:96)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:99)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:89)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:134)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:142)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:118)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:67) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:97)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57) ~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:110)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:254)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_71]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_71]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
{code}

I am not very sure if this is related to DRILL-2096



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