[jira] [Commented] (SPARK-34528) View result are not consistent after a modification inside a struct of the table

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-34528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17290275#comment-17290275 ] 

Apache Spark commented on SPARK-34528:
--------------------------------------

User 'tprelle' has created a pull request for this issue:
https://github.com/apache/spark/pull/31639

> View result are not consistent after a modification inside a struct of the table
> --------------------------------------------------------------------------------
>
>                 Key: SPARK-34528
>                 URL: https://issues.apache.org/jira/browse/SPARK-34528
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 3.2.0
>            Reporter: Thomas Prelle
>            Priority: Major
>
> After [https://github.com/apache/spark/pull/31368] work to simplify hive view resolution
> I found a bug because Hive allow you to change the order inside a struct
> 1) You create a table in hive with a struct:
>  CREATE table test_struct (id int, sub STRUCT <a :INT, b:STRING>);
> 2) You insert data into it :
> INSERT INTO TABLE test_struct select 1, named_struct("a",1,"b","v1");
> 3) Create a view on top of it :
> CREATE view test_view_struct as select id, sub from test_view_struct
> 4) Change the table struct reodoring the struct
> ALTER TABLE test_struct CHANGE COLUMN sub sub STRUCT < b:STRING,a :INT>;
> 5) Spark can not anymore query the view because struct in spark it's based on the position not on the name of the column.
> If the changement it's castable you can even have a silent failed



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