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From "mehran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5201) Query bug: null values in result of a conditioned query
Date Thu, 19 Jan 2017 09:14:26 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15829565#comment-15829565
] 

mehran commented on DRILL-5201:
-------------------------------

I added sample data and query is updated to:
SELECT   event_source_id   FROM   dfs.root.`/repositories/01/2017/01/16/20` Tlb0 where event_source_id
= 2000163 LIMIT   100  OFFSET   0 

> Query bug: null values in result of a conditioned query  
> ---------------------------------------------------------
>
>                 Key: DRILL-5201
>                 URL: https://issues.apache.org/jira/browse/DRILL-5201
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Client - HTTP
>    Affects Versions: 1.9.0
>            Reporter: mehran
>         Attachments: 20.tar.gz
>
>
> I have a table with 300 columns.
> When I select a query , some null columns are also returned.
> This is the query that I used.
> "select a,b from dfs.root.`/2016/1/17` where a=1"
> For example in this query some columns are returned that "a" value is null.
> I think null values are problems. Because when I add a condition to it like 
> "select a,b from dfs.root.`/2016/1/17` where a=1 and a IS NOT NULL"
> there is not any change and still NULL values are returned.



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