[jira] [Assigned] (HIVE-26398) INSERT INTO complex type with varchar/char field fails CBO

["John Sherman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-26398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Sherman reassigned HIVE-26398:
-----------------------------------


> INSERT INTO complex type with varchar/char field fails CBO
> ----------------------------------------------------------
>
>                 Key: HIVE-26398
>                 URL: https://issues.apache.org/jira/browse/HIVE-26398
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>    Affects Versions: 4.0.0
>            Reporter: John Sherman
>            Assignee: John Sherman
>            Priority: Major
>
> {code}
> CREATE EXTERNAL TABLE test_complex_struct(struct_type struct<string_type : STRING, varchar_type : VARCHAR(100), char_type : CHAR(34)>) STORED AS PARQUET;
> INSERT INTO test_complex_struct SELECT named_struct("string_type", 'str1', "varchar_type", cast('varchar1' as varchar(100)), "char_type", cast('char' as char(34)));
> {code}
> fails with
> {code}
>  org.apache.hadoop.hive.ql.parse.SemanticException: Line 2:12 Cannot insert into target table because column number/types are different 'test_complex_struct': Cannot convert column 0 from struct<string_type:string,varchar_type:string,char_type:string> to struct<string_type:string,varchar_type:varchar(100),char_type:char(34)>.{code}
> This also fails with maps:
> {code}
> CREATE EXTERNAL TABLE test_complex_map(t_map map<varchar(100), char(10)>) STORED AS PARQUET;
> INSERT INTO test_complex_map SELECT map(cast("test" as varchar(100)), cast("value" as char(10)));
> {code}
> It seems that the cast is being lost or ignored somewhere along the way (and it stays a string). 
> The queries do complete when ran on the non-CBO path. (Disabling CBO or falling back)



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