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https://issues.apache.org/jira/browse/HIVE-13997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15337687#comment-15337687
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Rui Li commented on HIVE-13997:
-------------------------------
Hi [~ashutoshc], since we are inserting into directory, we don't need to load
table and replaceFiles won't be called. The call path is {{MoveTask.execute ->
moveFile -> moveFileInDfs -> Hive.moveFile}}. Besides, moveFile does take care
of replacing files. I think it just has a bug when the src is a sub dir of the
dest dir.
{{ppd_multi_insert}} fails because {{Hive.isSubDir}} decides whether src is sub
dir of dest by just checking {{src.startsWith(dest)}}. This is incorrect
because it returns true when src is "/a/bc" and dest is "/a/b".
I'll provide a patch to fix this.
> Insert overwrite directory doesn't overwrite existing files
> -----------------------------------------------------------
>
> Key: HIVE-13997
> URL: https://issues.apache.org/jira/browse/HIVE-13997
> Project: Hive
> Issue Type: Bug
> Reporter: Rui Li
> Assignee: Rui Li
> Attachments: HIVE-13997.1.patch
>
>
> Can be easily reproduced by running {{INSERT OVERWRITE DIRECTORY}} to the
> same dir twice.
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