[SPARK-48726] Create the StateSchemaV3 file format, and write this out for the TransformWithStateExec operator

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Component/s: Structured Streaming
• Labels: pull-request-available
• Epic Link: Structured Streaming - Arbitrary State API v2
• Assignee: Eric Marnadi
• Reporter: Eric Marnadi
• Created: 26/Jun/24 18:13
• Updated: 11/Jul/24 02:58
• Resolved: 11/Jul/24 02:58

Description

Create the StateSchemaV3 format for the TransformWithState operator to keep track of the schema for multiple column families 

Issue Links

• links to: GitHub Pull Request #47104