Function run_migration 

pub async fn run_migration(
    pool: &Pool<Postgres>,
    registry: &SchemaRegistry,
) -> Result<(), OperationOutcomeError>

Creates the anchor, the shared tables and one table per resource type. Idempotent: new parameters are added with ADD COLUMN IF NOT EXISTS, and existing rows read NULL until reindexed.

Errors

Returns an error if the migration lock cannot be taken or any DDL fails.