[IMPALA-11387] Add virtual column ICEBERG__SEQUENCE__NUMBER

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.3.0
• Component/s: Backend, Frontend
• Labels: impala-iceberg
• Epic Link: Iceberg V2 format
• Epic Color: ghx-label-9
• Assignee: Gabor Kaszab
• Reporter: Zoltán Borók-Nagy
• Created: 23/Jun/22 12:55
• Updated: 09/Apr/24 09:17
• Resolved: 09/Apr/24 09:17

Description

A virtual column ICEBERG_SEQUENCE_NUMBER is needed to handle row-level updates.
See details at:
https://iceberg.apache.org/spec/#scan-planning

This could be written in the template tuple, similarly to INPUT_FILE_NAME.