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Posted to dev@hive.apache.org by "Ádám Szita (Jira)" <ji...@apache.org> on 2022/10/13 14:27:00 UTC

[jira] [Created] (HIVE-26630) Introduce copy-on-write DML implementations for Iceberg tables

Ádám Szita created HIVE-26630:
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             Summary: Introduce copy-on-write DML implementations for Iceberg tables
                 Key: HIVE-26630
                 URL: https://issues.apache.org/jira/browse/HIVE-26630
             Project: Hive
          Issue Type: Improvement
            Reporter: Ádám Szita
            Assignee: Ayush Saxena


Hive currently only supports merge-on-read approach when doing delete/update/merge operations on Iceberg tables. From performance point of view this has the advantage on the write side and disadvantage on the read side.
We should create a copy-on-write implementation for these where the pro's and con's are inverted which might suite better certain use cases.



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