[jira] [Created] (HIVE-15190) Field names are not preserved in ORC files written with ACID

["Anthony Hsu (JIRA)" <ji...@apache.org>]

Anthony Hsu created HIVE-15190:
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             Summary: 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
            Reporter: Anthony Hsu
            Assignee: Anthony Hsu


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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