Marton Bod created HIVE-25849:
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Summary: Disable insert overwrite for bucket partitioned Iceberg
tables
Key: HIVE-25849
URL: https://issues.apache.org/jira/browse/HIVE-25849
Project: Hive
Issue Type: Improvement
Reporter: Marton Bod
Assignee: Marton Bod
Insert overwrite should be disabled where the target Iceberg table is a bucket
partitioned table, since which existing partitions will be overwritten is very
hard to predict from a user's POV, as it depends on the bucket hash values
calculated for the new dataset's rows. It's better to be on the safe side and
disable this operation to avoid unwanted data loss.
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