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https://issues.apache.org/jira/browse/HIVE-23023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17060052#comment-17060052
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László Pintér commented on HIVE-23023:
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+1 (pending tests)
> MR compaction ignores column schema evolution
> ---------------------------------------------
>
> Key: HIVE-23023
> URL: https://issues.apache.org/jira/browse/HIVE-23023
> Project: Hive
> Issue Type: Bug
> Reporter: Karen Coppage
> Assignee: Karen Coppage
> Priority: Major
> Attachments: HIVE-23023.01.patch, HIVE-23023.02.patch,
> HIVE-23023.03.patch
>
>
> Repro:
> {code:java}
> create table compaction_error(i int)
> partitioned by (`part1` string)
> stored as orc
> TBLPROPERTIES ('transactional'='true');
> insert into table compaction_error values (1, 'aa');
> ALTER TABLE compaction_error ADD COLUMNS (newcol string);
> insert into table compaction_error values (2, 2000, 'aa');
> alter table compaction_error partition (part1='aa') compact 'minor'; --or
> major
> {code}
> data row will look like:
> {code:java}
> 1, NULL, 'aa'
> 2, NULL, 'aa'
> {code}
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