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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2906) CTAS with store.format = 'json' returns incorrect results
Date Tue, 05 May 2015 21:20:59 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14529303#comment-14529303
] 

Rahul Challapalli commented on DRILL-2906:
------------------------------------------

This can be reproduced with a simpler case

Data :
{code}
{
  "int_col" : {"$numberLong": 1},
  "date_col" : {"$dateDay": "2012-05-22"},
  "time_col"  : {"$time": "19:20:30.45Z"}
}
{code}

Query :
{code}
0: jdbc:drill:schema=dfs_eea> select * from `temp.json`;
+------------+------------+------------+------------+
|  int_col   |  date_col  |  time_col  |     *      |
+------------+------------+------------+------------+
| 1          | 2012-05-22 | 19:20:30.450 | null       |
+------------+------------+------------+------------+
1 row selected (0.147 seconds)
{code}

> CTAS with store.format = 'json' returns incorrect results
> ---------------------------------------------------------
>
>                 Key: DRILL-2906
>                 URL: https://issues.apache.org/jira/browse/DRILL-2906
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - JSON, Storage - Writer
>            Reporter: Mehant Baid
>            Assignee: Steven Phillips
>             Fix For: 1.0.0
>
>
> Performing a CTAS with 'store.format' = 'json' and querying the table results in projecting
an addition field '*' will null values. Below is a simple repro
> 0: jdbc:drill:zk=local> create table t as select timestamp '1980-10-01 00:00:00' from
cp.`employee.json` limit 1;
> +------------+---------------------------+
> |  Fragment  | Number of records written |
> +------------+---------------------------+
> | 0_0        | 1                         |
> +------------+---------------------------+
> 1 row selected (0.314 seconds)
> 0: jdbc:drill:zk=local> select * from t;
> +------------+------------+
> |   EXPR$0   |     *      |
> +------------+------------+
> | 1980-10-01 00:00:00.0 | null       |
> +------------+------------+
> Notice in the above result set we get an extra column '*' with null value.



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