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Posted to issues@drill.apache.org by "mehran (JIRA)" <ji...@apache.org> on 2017/01/17 11:32:27 UTC
[jira] [Updated] (DRILL-5201) Returning null
[ https://issues.apache.org/jira/browse/DRILL-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
mehran updated DRILL-5201:
--------------------------
Description:
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.
was:
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.
If we?
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
> Returning null
> ---------------
>
> 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
>
> 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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