[jira] [Assigned] (FLINK-39019) [Iceberg] Support deletion vectors for format-version 3 tables

["Leonard Xu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-39019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leonard Xu reassigned FLINK-39019:
----------------------------------

    Assignee: suhwan

> [Iceberg] Support deletion vectors for format-version 3 tables
> --------------------------------------------------------------
>
>                 Key: FLINK-39019
>                 URL: https://issues.apache.org/jira/browse/FLINK-39019
>             Project: Flink
>          Issue Type: New Feature
>          Components: Flink CDC
>            Reporter: suhwan
>            Assignee: suhwan
>            Priority: Not a Priority
>              Labels: iceberg
>
> *Summary*
> Implement deletion vector support in Flink CDC Iceberg connector to leverage format-version 3 performance benefits for CDC workloads.
>  
> *Content*
> [https://iceberg.apache.org/spec/#deletion-vectors]
> Iceberg format-version 3 introduces binary deletion vectors which replace positional delete files with compact bitmaps stored in Puffin files
> (Current implementation uses equality delete files via `RowDataTaskWriterFactory`)
>  
> In most case (especially CDC), deletion vector is more efficient than positional delete files
> (I refered [https://opensource.googleblog.com/2025/08/whats-new-in-iceberg-v3.html,] [https://www.dremio.com/blog/apache-iceberg-v3/] )
>  
> *Proposed Changes*
>  # Check `table.properties().get("format-version")`
>  ## For v3 tables with id fields -> use deletion vector
>  ## etc tables -> use equality delete files



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