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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2095) Order by on a repeated index inside a sub query results in an NPE
Date Wed, 28 Jan 2015 18:44:34 GMT
Rahul Challapalli created DRILL-2095:
----------------------------------------

             Summary: Order by on a repeated index inside a sub query results in an NPE
                 Key: DRILL-2095
                 URL: https://issues.apache.org/jira/browse/DRILL-2095
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
            Reporter: Rahul Challapalli
            Assignee: Jinfeng Ni
            Priority: Critical


git.commit.id.abbrev=3e33880

Data Set :
{code}
{
  "id" : 1,
  "list" : [1,2]
}
{code}

The below query succeeds
{code}
0: jdbc:drill:schema=dfs.drillTestDir> select d.id id from `data.json` d order by d.list[0];
+------------+
|     id     |
+------------+
| 1          |
+------------+
1 row selected (0.12 seconds)

{code}

However when we use the same query inside a sub-query we get an NPE
{code}
0: jdbc:drill:schema=dfs.drillTestDir> select s.id from (select d.id id from `data.json`
d order by d.list[0]) s;
Query failed: NullPointerException: 

Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Explain plan also results in the same NPE for the above query



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