drill-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jason Altekruse (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-1311) Hash join does not support schema changes error
Date Mon, 29 Sep 2014 16:48:34 GMT

    [ https://issues.apache.org/jira/browse/DRILL-1311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14151881#comment-14151881
] 

Jason Altekruse commented on DRILL-1311:
----------------------------------------

The case where the view only references a & b should be fixed by project pushdown. I will
write a quick test to confirm. The second one is a bit puzzling to me as it does not look
like there should be a schema change.

> Hash join does not support schema changes error
> -----------------------------------------------
>
>                 Key: DRILL-1311
>                 URL: https://issues.apache.org/jira/browse/DRILL-1311
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Neeraja
>            Assignee: Ramana Inukonda Nagaraj
>             Fix For: 0.6.0
>
>
> - Create a directory with a couple of JSON files. One with columns a,b and second with
columns a,b,c. 
> - a & b attributes have same data types across both the files
> - create a view by selecting columns a, b from the directory
> - Join the view with any other table
> An error shows up indicating that 'Hash join does not support schema changes'.
> There is a schema change across the files with a new element being added, however given
that specific columns a,b are selected in the view, expect that query works fine.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message