# Introduction
We were allowing the sequence to be empty in the worker context that was
facing an edge case importing the UpgradeModule through the
WorkspaceModule god module, no commands were discovered and it was
throwing as the sequence must have at least one workspace commands to
allow a workspace creation
Though the issue was also applicable to the twenty-server `AppModule`
too that was not discovering any commands
## Integration tests were passing
The integration test were importing the `CommandModule` at the nest
testing app creating leading to asymmetric testing context
It was a requirement for a legacy commands import and global assignation
## Fix
The `UpgradeModule` now import both `WorkspaceCommandsProviderModule`
and `InstanceCommandProviderModule` which ships the commands directly in
the module
We could consider moving the commands into the `engine/upgrade` folder
## Concern
Bootstrap could become more and more long to load at both server and
worker start
When this becomes a problem we will have to only import the latest
workspace command or whatever
For the moment this is not worth it the risk to import not the latest
workspace command
## Summary
- **Drop the `objectMetadata.dataSourceId` foreign key and index** via a
1-22 fast instance command — column kept nullable for data preservation
- **Delete `DataSourceService`, `DataSourceModule`, and
`DataSourceException`** — all code now uses `workspace.databaseSchema`
directly
- **Remove `IS_DATASOURCE_MIGRATED` feature flag** from default flags
and all branching logic
- **Simplify workspace/object creation pipelines** —
`WorkspaceManagerService`, `DevSeederService`, and the object creation
action handler no longer route through `DataSourceService`
- **Keep `DataSourceEntity` and the `dataSource` table** for historical
data — entity stripped of all ORM relations
## Context
To simplify the way we inject our default datasource, I've recently
removed the token injection that was confusion since we only had once
configured on the module level. Now I'm removing TypeORM service which
allows us to instantiate a new Datasource with the same parameters as
the default one, it was redundant and confusing.
