j.Omits = stmt.Omits
				}
			}

			expr := clause.NamedExpr{SQL: fmt.Sprintf("%s JOIN (?) AS ?", joinType), Vars: []interface{}{jt.Subquery, clause.Table{Name: j.Alias}}}

			if j.On != nil {
				expr.SQL += " ON ?"
				expr.Vars = append(expr.Vars, clause.AndConditions{Exprs: j.On.Exprs})
			}

			j.Expression = expr
		}

		db.Statement.Joins = append(db.Statement.Joins, j)

			tx.Statement = db.Statement.clone()
			tx.Statement.DB = tx
		}

		return tx
	}

	return db
}

// Expr returns clause.Expr, which can be used to pass SQL expression as params
func Expr(expr string, args ...interface{}) clause.Expr {
	return clause.Expr{SQL: expr, Vars: args}
}

// SetupJoinTable setup join table schema

				return []clause.Expression{clause.Expr{SQL: s, Vars: args}}
			}

			if len(args) > 0 && strings.Contains(s, "@") {
				// looks like a named query
				return []clause.Expression{clause.NamedExpr{SQL: s, Vars: args}}
			}

			if strings.Contains(strings.TrimSpace(s), " ") {
				// looks like a where condition
				return []clause.Expression{clause.Expr{SQL: s, Vars: args}}
			}

			if len(args) == 1 {

		tx.Statement.TableExpr = &clause.Expr{SQL: name, Vars: args}
		if results := tableRegexp.FindStringSubmatch(name); len(results) == 3 {
			if results[1] != "" {
				tx.Statement.Table = results[1]
			} else {
				tx.Statement.Table = results[2]
			}
		}
	} else if tables := strings.Split(name, "."); len(tables) == 2 {
		tx.Statement.TableExpr = &clause.Expr{SQL: tx.Statement.Quote(name)}
		tx.Statement.Table = tables[1]

		}
	}

	return m.Dialector.DataTypeOf(field)
}

// FullDataTypeOf returns field's db full data type
func (m Migrator) FullDataTypeOf(field *schema.Field) (expr clause.Expr) {
	expr.SQL = m.DataTypeOf(field)

	if field.NotNull {
		expr.SQL += " NOT NULL"
	}

	if field.HasDefaultValue && (field.DefaultValueInterface != nil || field.DefaultValue != "") {
		if field.DefaultValueInterface != nil {

	}

	if err := DB.Model(&results[0]).Updates(map[string]interface{}{"age": gorm.Expr("age + ?", 100)}).Error; err != nil {
		t.Errorf("Not error should happen when updating with gorm expr, but got %v", err)
	}

	if err := DB.Model(&results[1]).Clauses(clause.Returning{Columns: []clause.Column{{Name: "age"}}}).Updates(map[string]interface{}{"age": gorm.Expr("age + ?", 100)}).Error; err != nil {

	case sqlFnSubstring:
		errVal := fmt.Errorf("Invalid argument(s) to %s", string(funcName))
		result.combine(e.Substring.Expr.analyze(s))
		switch {
		case e.Substring.From != nil:
			result.combine(e.Substring.From.analyze(s))
			if e.Substring.For != nil {
				result.combine(e.Substring.Expr.analyze(s))
			}
		case e.Substring.Arg2 != nil:
			result.combine(e.Substring.Arg2.analyze(s))
			if e.Substring.Arg3 != nil {

}

func TestExpr(t *testing.T) {
	p := NewParser(nil, nil, nil) // Expression evaluation uses none of these fields of the parser.
	for i, test := range exprTests {
		p.start(lex.Tokenize(test.input))
		result := int64(p.expr())
		if result != test.output {
			t.Errorf("%d: %q evaluated to %d; expected %d", i, test.input, result, test.output)
		}
		tok := p.next()
		if test.atEOF && tok.ScanToken != scanner.EOF {

      pwd
    )"
fi

if [ -z "$JAVA_HOME" ]; then
  javaExecutable="$(which javac)"
  if [ -n "$javaExecutable" ] && ! [ "$(expr "$javaExecutable" : '\([^ ]*\)')" = "no" ]; then
    # readlink(1) is not available as standard on Solaris 10.
    readLink=$(which readlink)
    if [ ! "$(expr "$readLink" : '\([^ ]*\)')" = "no" ]; then
      if $darwin; then
        javaHome="$(dirname "$javaExecutable")"

		LastInsertIDReversed: true,
	})

	return nil
}

func (DummyDialector) DefaultValueOf(field *schema.Field) clause.Expression {
	return clause.Expr{SQL: "DEFAULT"}
}

func (DummyDialector) Migrator(*gorm.DB) gorm.Migrator {
	return nil
}

func (DummyDialector) BindVarTo(writer clause.Writer, stmt *gorm.Statement, v interface{}) {
	writer.WriteByte('?')
}