[jira] [Created] (DRILL-2202) Star is no expanded correctly during group by over named subquery

["Victoria Markman (JIRA)" <ji...@apache.org>]

Victoria Markman created DRILL-2202:
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             Summary: Star is no expanded correctly during group by over named subquery
                 Key: DRILL-2202
                 URL: https://issues.apache.org/jira/browse/DRILL-2202
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 0.8.0
            Reporter: Victoria Markman
            Assignee: Jinfeng Ni
         Attachments: drillbit.log

I gave subquery name and named all the columns.
Group by condition is the same as expanded star ...
Should work.

{code}
0: jdbc:drill:schema=dfs> select * from ( select a1, b1, c1 from t1 ) as dt(x1, x2, x3) group by dt.x1, dt.x2, dt.x3;
Query failed: AssertionError: Internal error: invariant violated: conversion result not null
Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Workaround: replace star with column names manually:
{code}
0: jdbc:drill:schema=dfs> select dt.x1, dt.x2, dt.x3 from ( select a1, b1, c1 from t1 ) as dt(x1, x2, x3) group by dt.x1, dt.x2, dt.x3;
+------------+------------+------------+
|     x1     |     x2     |     x3     |
+------------+------------+------------+
| 1          | aaaaa      | 2015-01-01 |
| 2          | bbbbb      | 2015-01-02 |
| 3          | ccccc      | 2015-01-03 |
| 4          | null       | 2015-01-04 |
| 5          | eeeee      | 2015-01-05 |
| 6          | fffff      | 2015-01-06 |
| 7          | ggggg      | 2015-01-07 |
| null       | hhhhh      | 2015-01-08 |
| 9          | iiiii      | null       |
| 10         | jjjjj      | 2015-01-10 |
+------------+------------+------------+
10 rows selected (0.16 seconds)
{code}



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