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From "Jesus Camacho Rodriguez (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (HIVE-22622) Hive allows to create a struct with duplicate attribute names
Date Tue, 01 Sep 2020 22:30:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-22622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesus Camacho Rodriguez resolved HIVE-22622.
--------------------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed

Pushed to master, thanks [~kkasa]!

> Hive allows to create a struct with duplicate attribute names
> -------------------------------------------------------------
>
>                 Key: HIVE-22622
>                 URL: https://issues.apache.org/jira/browse/HIVE-22622
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Denys Kuzmenko
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> When you create at table with a struct with twice the same attribute name, hive allow
you to create it.
> create table test_struct( duplicateColumn struct<id:int, id:int>);
> You can insert data into it :
> insert into test_struct select named_struct("id",1,"id",1);
> But you can not read it :
> select * from test_struct;
> Return : java.io.IOException: java.io.IOException: Error reading file: hdfs://.../test_struct/delta_0000001_0000001_0000/bucket_00000
,
> We can create and insert. but fail on read the Struct part of the tables. We can still
read all other columns (if we have more than one) but not the struct anymore.



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