[jira] [Assigned] (IMPALA-14825) Add syntactic sugar for Iceberg Row Lineage data

["Zoltán Borók-Nagy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-14825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy reassigned IMPALA-14825:
------------------------------------------

    Assignee: Zoltán Borók-Nagy

> Add syntactic sugar for Iceberg Row Lineage data
> ------------------------------------------------
>
>                 Key: IMPALA-14825
>                 URL: https://issues.apache.org/jira/browse/IMPALA-14825
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>            Reporter: Zoltán Borók-Nagy
>            Assignee: Zoltán Borók-Nagy
>            Priority: Major
>              Labels: impala-iceberg
>
> Currently Row Lineage fields can be queried by complex expressions:
>  * row-id
>  ** 
> {noformat}
> COALESCE(_file_row_id, ICEBERG__FIRST__ROW__ID + FILE__POSITION)
> {noformat}
>  * last-updated-sequence-number
>  ** 
> {noformat}
> COALESCE(_file_last_updated_sequence_number, ICEBERG__DATA__SEQUENCE__NUMBER)
> {noformat}
> We could add ICEBERG\_\_ROW\_\_ID and ICEBERG\_\_LAST\_\_UPDATED\_\_SEQUENCE\_\_NUMBER virtual columns as placeholders that would always get re-written during analysis.



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