Feature Request / Improvement

Motivation

Apache Flink supports CALL sql statements to call a stored procedure which can perform administrative tasks. I want to implement something similar to Paimon's procedures in Iceberg.

The idea is to make snapshot references easier to manage directly from Flink SQL.

Implemented procedures

• create_tag
• delete_tag
• create_tag_from_timestamp
• create_branch
• delete_branch
• rollback_to
• rollback_to_timestamp
• expire_snapshots

We can add more in the future, something like rename_tag or list_snapshots etc.

Example usage

CALL sys.create_tag('tableId', 'tagName', snapshotId, 'timeRetained')

This made branch/tag workflows much more convenient in Flink SQL.

Query engine

Flink

Willingness to contribute

• I can contribute this improvement/feature independently
• I would be willing to contribute this improvement/feature with guidance from the Iceberg community
• I cannot contribute this improvement/feature at this time