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https://issues.apache.org/jira/browse/HIVE-1271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arvind Prabhakar updated HIVE-1271:
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Attachment: HIVE-1271-1.patch
> Case sensitiveness of type information specified when using custom reducer
> causes type mismatch
> -----------------------------------------------------------------------------------------------
>
> Key: HIVE-1271
> URL: https://issues.apache.org/jira/browse/HIVE-1271
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.5.0
> Reporter: Dilip Joseph
> Assignee: Arvind Prabhakar
> Attachments: HIVE-1271-1.patch, HIVE-1271.patch
>
>
> Type information specified while using a custom reduce script is converted
> to lower case, and causes type mismatch during query semantic analysis . The
> following REDUCE query where field name = "userId" failed.
> hive> CREATE TABLE SS (
> > a INT,
> > b INT,
> > vals ARRAY<STRUCT<userId:INT, y:STRING>>
> > );
> OK
> hive> FROM (select * from srcTable DISTRIBUTE BY id SORT BY id) s
> > INSERT OVERWRITE TABLE SS
> > REDUCE *
> > USING 'myreduce.py'
> > AS
> > (a INT,
> > b INT,
> > vals ARRAY<STRUCT<userId:INT, y:STRING>>
> > )
> > ;
> FAILED: Error in semantic analysis: line 2:27 Cannot insert into
> target table because column number/types are different SS: Cannot
> convert column 2 from array<struct<userId:int,y:string>> to
> array<struct<userid:int,y:string>>.
> The same query worked fine after changing "userId" to "userid".
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