if len(primaryFields) < idx+1 {
					primaryFields = append(primaryFields, f)
				} else if f != primaryFields[idx] {
					reguessOrErr()
					return
				}
			} else {
				reguessOrErr()
				return
			}
		}
	case len(primaryFields) == 0:
		if len(foreignFields) == 1 && primarySchema.PrioritizedPrimaryField != nil {

				if column, values := schema.ToQueryValues(rel.FieldSchema.Table, rel.FieldSchema.PrimaryFieldDBNames, rvs); len(values) > 0 {
					tx.Not(clause.IN{Column: column, Values: values})
				}
			}

			for _, ref := range rel.References {
				if ref.OwnPrimaryKey {
					primaryFields = append(primaryFields, ref.PrimaryKey)

	"gorm.io/gorm/utils/tests"
)

func checkSchema(t *testing.T, s *schema.Schema, v *schema.Schema, primaryFields []string) {
	t.Run("CheckSchema/"+s.Name, func(t *testing.T) {
		tests.AssertObjEqual(t, s, v, "Name", "Table")

		for idx, field := range primaryFields {
			var found bool
			for _, f := range s.PrimaryFields {
				if f.Name == field {
					found = true
				}
			}

			if idx == 0 {

					// remove the existing primary key field
					for idx, f := range schema.PrimaryFields {
						if f.DBName == v.DBName {
							schema.PrimaryFields = append(schema.PrimaryFields[0:idx], schema.PrimaryFields[idx+1:]...)
						}
					}
				}

				if field.PrimaryKey {
					schema.PrimaryFields = append(schema.PrimaryFields, field)
				}
			}
		}

							for _, pf := range rel.FieldSchema.PrimaryFields {
								if pfv, ok := pf.ValueOf(db.Statement.Context, rv); !ok {
									relPrimaryValues = append(relPrimaryValues, pfv)
								}
							}
							cacheKey := utils.ToStringKey(relPrimaryValues...)
							if len(relPrimaryValues) != len(rel.FieldSchema.PrimaryFields) || !identityMap[cacheKey] {

				for i := 0; i < size; i++ {
					for _, field := range stmt.Schema.PrimaryFields {
						_, isZero = field.ValueOf(stmt.Context, stmt.ReflectValue.Index(i))
						if !isZero {
							break
						}
					}
				}

				if !isZero {
					_, primaryValues := schema.GetIdentityFieldValuesMap(stmt.Context, stmt.ReflectValue, stmt.Schema.PrimaryFields)

			db.Statement.AddClauseIfNotExists(clause.Delete{})

			if db.Statement.Schema != nil {
				_, queryValues := schema.GetIdentityFieldValuesMap(db.Statement.Context, db.Statement.ReflectValue, db.Statement.Schema.PrimaryFields)
				column, values := schema.ToQueryValues(db.Statement.Table, db.Statement.Schema.PrimaryFieldDBNames, queryValues)

				if len(values) > 0 {

	stmt := gorm.Statement{DB: DB}
	if err := stmt.Parse(&EngadgetPost{}); err != nil {
		t.Fatalf("failed to parse embedded struct")
	} else if len(stmt.Schema.PrimaryFields) != 1 {
		t.Errorf("should have only one primary field with embedded struct, but got %v", len(stmt.Schema.PrimaryFields))
	}

	for _, name := range []string{"user_id", "user_name", "user_email"} {
		if !DB.Migrator().HasColumn(&HNPost{}, name) {

					createTableSQL += ","
				}
			}

			if !hasPrimaryKeyInDataType && len(stmt.Schema.PrimaryFields) > 0 {
				createTableSQL += "PRIMARY KEY ?,"
				primaryKeys := make([]interface{}, 0, len(stmt.Schema.PrimaryFields))
				for _, field := range stmt.Schema.PrimaryFields {
					primaryKeys = append(primaryKeys, clause.Column{Name: field.DBName})
				}

				values = append(values, primaryKeys)

		if db.Statement.ReflectValue.Kind() == reflect.Struct && db.Statement.ReflectValue.Type() == db.Statement.Schema.ModelType {
			var conds []clause.Expression
			for _, primaryField := range db.Statement.Schema.PrimaryFields {
				if v, isZero := primaryField.ValueOf(db.Statement.Context, db.Statement.ReflectValue); !isZero {
					conds = append(conds, clause.Eq{Column: clause.Column{Table: db.Statement.Table, Name: primaryField.DBName}, Value: v})