rajarshisarkar commented on PR #4586:
URL: https://github.com/apache/iceberg/pull/4586#issuecomment-1105152105

   Thanks for the inputs, @amogh-jahagirdar! 
   
   I am carrying forward the call procedure approach from the [existing 
snapshot management 
APIs](https://iceberg.apache.org/docs/latest/spark-procedures/#snapshot-management):
 `rollback_to_snapshot`, `rollback_to_timestamp`, `set_current_snapshot`, 
`cherrypick_snapshot`. However, the SQL approach looks really interesting to me.
   
   Here are my thoughts:
   (1) Introduce call procedures for all the branching & tagging APIs as 
effectively they are snapshot management APIs and we already have [some 
existing procedural calls for the 
same](https://iceberg.apache.org/docs/latest/spark-procedures/#snapshot-management).
 The procedural calls could be API specific or generic enough to cater 
different use cases via named/positional arguments.
   (2) Introduce new SQL Syntax specific to branching and tagging - make 
changes in `IcebergSparkSessionExtensions` (and also in parser, analyzer, 
planner to understand the new syntax). The Syntax could be something similar to 
what Amogh suggested and can be proposed/reviewed in the community.
   
   I don't have a strong opinion on (1) or (2) - would like to just use Spark 
to create/modify/remove a branch/tag. I would also like to list/view details of 
the available branches/tags using Spark.
   
   @rdblue @jackye1995 Please let me know your thoughts.


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