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https://issues.apache.org/jira/browse/DRILL-6223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16403753#comment-16403753
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ASF GitHub Bot commented on DRILL-6223:
---------------------------------------

Github user sachouche commented on the issue:

    https://github.com/apache/drill/pull/1170
  
    @parthchandra can you also please review this PR? 
    Thanks!



> 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)



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