Added the ability to migrate existing S3 disk data to a new schema that supports backup and restore capabilities in ClickHouse.
Why it matters
This feature addresses the need to enhance data management on S3 storage by enabling a migration path to a schema that supports backup and restore operations. It allows users to safely transition their existing S3 disk data to a more resilient format that facilitates data recovery and backup processes.How to use it
Users can migrate their existing S3 disk by following the new migration commands or procedures introduced in the feature, which convert the on-disk data layout to the backup-restore compatible schema. Detailed usage instructions are available in the related pull request and documentation.