anchor.diff:        dartGetterName: ReCase(name).camelCase,
         type: moorType,
         nullable: nullable,
  -      defaultArgument: data['default_dart'] as String,
  +      defaultArgument: data['default_dart'] as String?,
         customConstraints: customConstraints,
         features: dslFeatures.whereType<ColumnFeature>().toList(),
       );
  
positive.code:       dartTypeName: '${pascalCase}Data',
        primaryKey: explicitPk,
        overrideTableConstraints: tableConstraints,
        overrideDontWriteConstraints: content['was_declared_in_moor'] as bool,
        overrideWithoutRowId: withoutRowId,
        declaration: const CustomTableDeclaration(),
      );
  
negative.code:     final moorType = ColumnType.values
          .firstWhere((type) => type.toString() == data['moor_type']);
      final nullable = data['nullable'] as bool;
      final customConstraints = data['customConstraints'] as String?;
      final dslFeatures = [
        for (final feature in data['dsl_features'] as List<dynamic>)
          _columnFeature(feature)
  