Hi,
#458 made the default for Identity columns bigint by default. If I understand it correctly the default can be changed by a Configuration - UseLegacyIdentity or something like that.
Given DataMigrations may be used for many use cases the need for a default is not clear.
Would respecting the column type definition in the SchemaBuilder not make more sense. That way you are explicit about what you want and there is a little less "magic"?
Kind regards,
Paul