Add/schema migration

[bz888]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes #1289

Type of change

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• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Checklist

• [ ] I have tested locally
• [ ] I have performed a self review of my changes
• [ ] Updated any relevant documentation
• [ ] Linked to any relevant issues
• [ ] I have added tests relevant to my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [ ] My code is up to date with the base branch
• [ ] I have updated relevant changelogs. We suggest using chan