Open
Description
SchemaValidatorService lacks forwards compatibility. Adding a column to a table causes the service to fail to start. This caused a production outage when a service was mid-migration with no way to roll forward or back.
It was removed from service startup checks in #1152. Enabling this should be high priority, since it's a sanity check that would prevent users from deploying a service that doesn't have the required migrations run.
cc: @swankjesse @tirsen