Denys Kuzmenko created HIVE-22622:
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Summary: 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
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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