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https://issues.apache.org/jira/browse/HIVE-26630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17617094#comment-17617094
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Ádám Szita commented on HIVE-26630:
-----------------------------------

We should probably create 3 subtasks under this ticket to track the 3 DML 
operations as we go.

> 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
>            Priority: Major
>
> 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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