This PR handles the system DB migration failure correctly so old app versions can still run on the new system DB schema. It is safe because we try not to make any backward incompatible changes.
Specifically, an error may happen if the old version detects a new migration in knex_migrations table but doesn't have the new migration file. With this PR, old versions can correctly proceed to run. This is important when we want to recover pending workflows under old app versions.
This PR handles the system DB migration failure correctly so old app versions can still run on the new system DB schema. It is safe because we try not to make any backward incompatible changes.
Specifically, an error may happen if the old version detects a new migration in
knex_migrationstable but doesn't have the new migration file. With this PR, old versions can correctly proceed to run. This is important when we want to recover pending workflows under old app versions.