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