wForget commented on pull request #34489:
URL: https://github.com/apache/spark/pull/34489#issuecomment-967199860
There seem to be two bugs:
1. For the insert overwrite fully static partition, when the insert data
size is 0, the existing partition data will be deleted.
2. For concurrent writes to fully static partitions, exceptions may occur in
`insert into` or `insert overwrite`. Due to temporary path
'${tableLocation}/_temporary' will be deleted in
`FileOutputCommitter.cleanupJob`.
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