// this column will not be able to run ALTER
		// see https://stackoverflow.com/questions/19460912/the-object-df-is-dependent-on-column-changing-int-to-double/19461205#19461205
		// may we need to create another PR to fix it, see https://github.com/go-gorm/sqlserver/pull/106
		tests = []TestCase{
			{name: "unique to notUnique", from: &UniqueStruct3{}, to: &UniqueStruct1{}, checkFunc: checkNotUnique},