modSql := testAutoMigrateDecimal(t, t1, t2)
	var alterSQL []string
	for _, sql := range modSql {
		if strings.HasPrefix(sql, "ALTER TABLE ") {
			alterSQL = append(alterSQL, sql)
		}
	}

	if len(alterSQL) != 3 {
		t.Fatalf("decimal changed error,expected: %+v,got: %+v.", expectedSql, alterSQL)
	}
	for i := range alterSQL {
		if alterSQL[i] != expectedSql[i] {