migrations

No inbound migration — this is the base version.

scan_metadata v1 has no predecessor, so there is nothing to migrate from: this module intentionally defines no upgrade/downgrade. Table existence is owned by the ORM (schema.py) and created directly by ensure_types; migrations model only the incremental delta between two existing versions (vN.upgrade = v(N-1) -> vN), so v1 has no delta to emit. Later versions (v2+) get autogenerated upgrade(op) / downgrade(op) via python -m bitfount.cache.tools.gen_migration.

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