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https://issues.apache.org/jira/browse/HIVE-15190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16506099#comment-16506099
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Mitchell Tracy commented on HIVE-15190:
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Any update on this?
> Field names are not preserved in ORC files written with ACID
> ------------------------------------------------------------
>
> Key: HIVE-15190
> URL: https://issues.apache.org/jira/browse/HIVE-15190
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.1.0, 2.2.0
> Reporter: Anthony Hsu
> Assignee: Anthony Hsu
> Priority: Major
> Attachments: HIVE-15190.1.patch, HIVE-15190.2.patch
>
>
> To repro:
> {noformat}
> drop table if exists orc_nonacid;
> drop table if exists orc_acid;
> create table orc_nonacid (a int) clustered by (a) into 2 buckets stored as
> orc;
> create table orc_acid (a int) clustered by (a) into 2 buckets stored as orc
> TBLPROPERTIES('transactional'='true');
> insert into table orc_nonacid values(1), (2);
> insert into table orc_acid values(1), (2);
> {noformat}
> Running {{hive --service orcfiledump <file>}} on the files created by the
> {{insert}} statements above, you'll see that for {{orc_nonacid}}, the files
> have schema {{struct<a:int>}} whereas for {{orc_acid}}, the files have schema
> {{struct<operation:int,originalTransaction:bigint,bucket:int,rowId:bigint,currentTransaction:bigint,row:struct<_col0:int>>}}.
> The last field {{row}} should have schema {{struct<a:int>}}.
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