[jira] [Created] (DRILL-2030) CTAS with SELECT * and expression creates column names with prefix

["Aman Sinha (JIRA)" <ji...@apache.org>]

Aman Sinha created DRILL-2030:
---------------------------------

             Summary: CTAS with SELECT * and expression creates column names with prefix
                 Key: DRILL-2030
                 URL: https://issues.apache.org/jira/browse/DRILL-2030
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 0.7.0
            Reporter: Aman Sinha
            Assignee: Jinfeng Ni


Doing a CTAS with the star column and an expression creates columns that contain the table prefix 'T||' .  Looks like the top project did not strip out the prefix. 
{code}
0: jdbc:drill:zk=local> create table region4 as select *, r_regionkey + 1 from cp.`tpch/region.parquet`;
+------------+---------------------------+
|  Fragment  | Number of records written |
+------------+---------------------------+
| 0_0        | 5                         |
+------------+---------------------------+

0: jdbc:drill:zk=local> select * from region4;
+-----------------+------------+---------------+------------+
| T2¦¦r_regionkey | T2¦¦r_name | T2¦¦r_comment |   EXPR$1   |
+-----------------+------------+---------------+------------+
{code}

The column names are correct if there is a regular column with the star column. 



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