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From "Steven Phillips (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2765) Throwing a NPE on exceuting query against parquet files
Date Thu, 16 Apr 2015 07:58:59 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14497692#comment-14497692
] 

Steven Phillips commented on DRILL-2765:
----------------------------------------

I can't make a patch because I don't have a fix. But whatever was causing the problem it is
fixed now. I just verified with latest master:

{code}
0: jdbc:drill:> select * from dfs.tmp.nulls;
+------------+------------+
|    date    |    url     |
+------------+------------+
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
| 14 april 2015 | null       |
+------------+------------+
23 rows selected (0.599 seconds)
0: jdbc:drill:> select * from sys.version;
+------------+----------------+-------------+-------------+------------+
| commit_id  | commit_message | commit_time | build_email | build_time |
+------------+----------------+-------------+-------------+------------+
| cb47df0c87676c5e0c0f94e5346fcd28f73080d7 | DRILL-2798 - don't print message about Drill
log dir unless environment variable DRILL_LOG_DEBUG=1 | 15.04.2015 @ 14:08:46 PDT | smp@apache.org
| 16.04.2015 @ 00:48:52 PDT |
{code}

What is the git commit id you are building from?

Can you include the error message and stack trace from drillbit.log?

> Throwing a  NPE on exceuting query against parquet files
> --------------------------------------------------------
>
>                 Key: DRILL-2765
>                 URL: https://issues.apache.org/jira/browse/DRILL-2765
>             Project: Apache Drill
>          Issue Type: Sub-task
>          Components: Storage - Parquet
>    Affects Versions: 0.8.0
>            Reporter: Mohsen Zainalpour
>            Assignee: Steven Phillips
>             Fix For: 1.0.0
>
>         Attachments: url_column_completely_null.parquet, url_column_onetime_value.parquet
>
>
> Executing a query on a parquet file that one of it`s columns haven`t any value at all(but
field exists in the schema) thorws a NPE



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