drill-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "salim achouche (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-6223) Drill fails on Schema changes
Date Fri, 16 Mar 2018 17:48:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-6223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16402255#comment-16402255
] 

salim achouche commented on DRILL-6223:
---------------------------------------

Parth, this PR is not Parquet specific as it deals with downstream operators having issues
handling schema changes. Most of the time, the end result would be downstream operators trying
to access stale data.

 

> Drill fails on Schema changes 
> ------------------------------
>
>                 Key: DRILL-6223
>                 URL: https://issues.apache.org/jira/browse/DRILL-6223
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Relational Operators
>    Affects Versions: 1.10.0, 1.12.0
>            Reporter: salim achouche
>            Assignee: salim achouche
>            Priority: Major
>             Fix For: 1.14.0
>
>
> Drill Query Failing when selecting all columns from a Complex Nested Data File (Parquet)
Set). There are differences in Schema among the files:
>  * The Parquet files exhibit differences both at the first level and within nested data
types
>  * A select * will not cause an exception but using a limit clause will
>  * Note also this issue seems to happen only when multiple Drillbit minor fragments are
involved (concurrency higher than one)



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Mime
View raw message