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https://issues.apache.org/jira/browse/HIVE-29799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated HIVE-29799:
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Summary: Table containing flattened union files cannot be converted to ACID
(was: Table containing flattened union subdirs cannot be converted to ACID)
> Table containing flattened union files cannot be converted to ACID
> ------------------------------------------------------------------
>
> Key: HIVE-29799
> URL: https://issues.apache.org/jira/browse/HIVE-29799
> Project: Hive
> Issue Type: Bug
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Major
>
> Discovered while testing HIVE-29798, see in PR:
> https://github.com/apache/hive/pull/6675
> MoveTask.flattenUnionSubdirectories produces <index>_000000_0 files (three
> numeric parts) which don't match the metastore's ORIGINAL_PATTERN
> ([0-9]+_[0-9]+), so a subsequent ACID conversion is rejected by
> TransactionalValidationListener.validateTableStructureForPath with
> "Unexpected data file name format". The tests assert exactly that failure and
> include a comment pointing at what should change to make them assert
> successful conversion instead.
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