str := stmt.Quote(opt.DBName)
		if opt.Expression != "" {
			str = opt.Expression
		} else if opt.Length > 0 {
			str += fmt.Sprintf("(%d)", opt.Length)
		}

		if opt.Collate != "" {
			str += " COLLATE " + opt.Collate
		}

		if opt.Sort != "" {
			str += " " + opt.Sort
		}
		results = append(results, clause.Expr{SQL: str})
	}
	return
}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Failed to resolve typedefs consistently.
// No runtime test; just make sure it compiles.
// In separate directory to isolate #pragma GCC diagnostic.

package issue27340

// We use the #pragma to avoid a compiler warning about incompatible
// pointer types, because we generate code passing a struct ptr rather

			Description: `comma separated list of etcd endpoints` + defaultHelpPostfix(Endpoints),
			Type:        "csv",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         PathPrefix,
			Description: `namespace prefix to isolate tenants` + defaultHelpPostfix(PathPrefix),
			Optional:    true,
			Type:        "path",
		},
		config.HelpKV{
			Key:         CoreDNSPath,
			Description: `shared bucket DNS records` + defaultHelpPostfix(CoreDNSPath),

	type AdvancedUser struct {
		EmbUser  `gorm:"embedded"`
		Advanced bool
	}

	DB.Migrator().DropTable(&AdvancedUser{})

	if err := DB.AutoMigrate(&AdvancedUser{}); err != nil {
		if DB.Dialector.Name() != "sqlite" {
			t.Errorf("Failed to auto migrate advanced user, got error %v", err)
		}
	}
}

func TestEmbeddedTagSetting(t *testing.T) {
	type Tag1 struct {
		Id int64 `gorm:"autoIncrement"`
	}

}

func isValidComparisonOperator(op string) bool {
	switch op {
	case opLt, opLte, opGt, opGte, opEq, opIneq, opIs, opIsNot:
	default:
		return false
	}
	return true
}

func intCompare(op string, left, right int64) bool {
	switch op {
	case opLt:
		return left < right
	case opLte:
		return left <= right
	case opGt:
		return left > right
	case opGte:
		return left >= right

		t.Errorf("Table with escape character, got %v", r.Statement.SQL.String())
	}

	r = dryDB.Create(&UserWithTable{}).Statement
	if DB.Dialector.Name() != "sqlite" {
		if !regexp.MustCompile(`INSERT INTO .gorm.\..user. (.*name.*) VALUES (.*)`).MatchString(r.Statement.SQL.String()) {
			t.Errorf("Table with escape character, got %v", r.Statement.SQL.String())
		}
	} else {

		t.Fatalf("Found deleted column")
	}
}

func TestMigrateColumns(t *testing.T) {
	tidbSkip(t, "use another test case")

	sqlite := DB.Dialector.Name() == "sqlite"
	sqlserver := DB.Dialector.Name() == "sqlserver"

	type ColumnStruct struct {
		gorm.Model
		Name  string
		Age   int    `gorm:"default:18;comment:my age"`

		t.Errorf("got %s; want %s", toJSONString(got), toJSONString(want))
	}
}

func TestManyToManyPreloadWithMultiPrimaryKeys(t *testing.T) {
	if name := DB.Dialector.Name(); name == "sqlite" || name == "sqlserver" {
		t.Skip("skip sqlite, sqlserver due to it doesn't support multiple primary keys with auto increment")
	}

	type (
		Level1 struct {
			ID           uint   `gorm:"primary_key;"`

					Option:  settings["OPTION"],
					Fields: []IndexOption{{
						Field:      field,
						Expression: settings["EXPRESSION"],
						Sort:       settings["SORT"],
						Collate:    settings["COLLATE"],
						Length:     length,
						priority:   priority,
					}},
				})
			}
		}
	}

	err = nil
	return

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

type UserIndex struct {
	Name         string `gorm:"index"`
	Name2        string `gorm:"index:idx_name,unique"`
	Name3        string `gorm:"index:,sort:desc,collate:utf8,type:btree,length:10,where:name3 != 'jinzhu'"`
	Name4        string `gorm:"uniqueIndex"`
	Name5        int64  `gorm:"index:,class:FULLTEXT,comment:hello \\, world,where:age > 10"`