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https://issues.apache.org/jira/browse/HIVE-17259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16241359#comment-16241359
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Ashutosh Chauhan commented on HIVE-17259:
-----------------------------------------
[~pvillard] Patch is incorrectly generated. It deletes (non-existent) lines
instead of adding them.
> Hive JDBC does not recognize UNIONTYPE columns
> ----------------------------------------------
>
> Key: HIVE-17259
> URL: https://issues.apache.org/jira/browse/HIVE-17259
> Project: Hive
> Issue Type: Bug
> Components: Beeline, JDBC
> Environment: Hive 1.2.1000.2.6.1.0-129
> Beeline version 1.2.1000.2.6.1.0-129 by Apache Hive
> Reporter: Pierre Villard
> Assignee: Pierre Villard
> Attachments: HIVE-17259.patch
>
>
> Hive JDBC does not recognize UNIONTYPE columns.
> I've an external table backed by an avro schema containing a union type field.
> {noformat}
> "name" : "value",
> "type" : [ "int", "string", "null" ]
> {noformat}
> When describing the table I've:
> {noformat}
> describe test_table;
> +-------------------+---------------------------------------------------------------+----------+--+
> | col_name | data_type
> | comment |
> +-------------------+---------------------------------------------------------------+----------+--+
> | description | string
> | |
> | name | string
> | |
> | value | uniontype<int,string,void>
> | |
> +-------------------+---------------------------------------------------------------+----------+--+
> {noformat}
> When doing a select query over the data using the Hive CLI, it works:
> {noformat}
> hive> select value from test_table;
> OK
> {0:10}
> {0:10}
> {0:9}
> {0:9}
> ...
> {noformat}
> But when using beeline, it fails:
> {noformat}
> 0: jdbc:hive2://....> select * from test_table;
> Error: Unrecognized column type: UNIONTYPE (state=,code=0)
> {noformat}
> By applying the patch provided with this JIRA, the command succeeds and
> return the expected output.
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