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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4519) JDBC getColumnTypeName() should respond with the Hive-specifc type name for ARRAY, STRUCT and MAP
Date Thu, 16 Jan 2014 17:46:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13873653#comment-13873653
] 

Ashutosh Chauhan commented on HIVE-4519:
----------------------------------------

+1 Looks like Hive QA didn't trigger.

> JDBC getColumnTypeName() should respond with the Hive-specifc type name for ARRAY, STRUCT
and MAP
> -------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-4519
>                 URL: https://issues.apache.org/jira/browse/HIVE-4519
>             Project: Hive
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 0.11.0
>            Reporter: Robert Roland
>            Assignee: Robert Roland
>         Attachments: HIVE-4519.1.patch.txt, HIVE-4519.2.patch.txt, HIVE-4519.3.patch.txt
>
>
> Per the Javadocs for ResultSetMetaData#getColumnTypeName():
> "type name used by the database. If the column type is a user-defined type, then a fully-qualified
type name is returned."
> Hive's type for array, struct and map is not String. It is array, struct or map, using
a JSON string serialization. Returning the Hive type here will allow you to programmatically
determine if you should parse the value in the ResultSet as JSON.
> ResultSetMetaData#getColumnType() should potentially return OTHER to indicate the column
is a database-specific return type.
> This would replace the fix provided HIVE-1378. 



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