diff --git a/.gitignore b/.gitignore
index b698bc6f..22486d5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,5 @@ temp_test.go
 .vscode
 xorm.test
 *.sqlite3
+
+.idea/
diff --git a/README.md b/README.md
index ffb6fc85..0ba5f040 100644
--- a/README.md
+++ b/README.md
@@ -217,7 +217,7 @@ has, err = testEngine.Table("record_exist").Where("name = ?", "test1").Exist()
 ```Go
 var users []User
 err := engine.Where("name = ?", name).And("age > 10").Limit(10, 0).Find(&users)
-// SELECT * FROM user WHERE name = ? AND age > 10 limit 0 offset 10
+// SELECT * FROM user WHERE name = ? AND age > 10 limit 10 offset 0
 
 type Detail struct {
     Id int64
@@ -234,7 +234,7 @@ err := engine.Table("user").Select("user.*, detail.*").
     Join("INNER", "detail", "detail.user_id = user.id").
     Where("user.name = ?", name).Limit(10, 0).
     Find(&users)
-// SELECT user.*, detail.* FROM user INNER JOIN detail WHERE user.name = ? limit 0 offset 10
+// SELECT user.*, detail.* FROM user INNER JOIN detail WHERE user.name = ? limit 10 offset 0
 ```
 
 * `Iterate` and `Rows` query multiple records and record by record handle, there are two methods Iterate and Rows
@@ -265,7 +265,7 @@ for rows.Next() {
 * `Update` update one or more records, default will update non-empty and non-zero fields except when you use Cols, AllCols and so on.
 
 ```Go
-affected, err := engine.Id(1).Update(&user)
+affected, err := engine.ID(1).Update(&user)
 // UPDATE user SET ... Where id = ?
 
 affected, err := engine.Update(&user, &User{Name:name})
@@ -276,14 +276,14 @@ affected, err := engine.In("id", ids).Update(&user)
 // UPDATE user SET ... Where id IN (?, ?, ?)
 
 // force update indicated columns by Cols
-affected, err := engine.Id(1).Cols("age").Update(&User{Name:name, Age: 12})
+affected, err := engine.ID(1).Cols("age").Update(&User{Name:name, Age: 12})
 // UPDATE user SET age = ?, updated=? Where id = ?
 
 // force NOT update indicated columns by Omit
-affected, err := engine.Id(1).Omit("name").Update(&User{Name:name, Age: 12})
+affected, err := engine.ID(1).Omit("name").Update(&User{Name:name, Age: 12})
 // UPDATE user SET age = ?, updated=? Where id = ?
 
-affected, err := engine.Id(1).AllCols().Update(&user)
+affected, err := engine.ID(1).AllCols().Update(&user)
 // UPDATE user SET name=?,age=?,salt=?,passwd=?,updated=? Where id = ?
 ```
 
diff --git a/README_CN.md b/README_CN.md
index 71b30c8e..1781a69b 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -224,7 +224,7 @@ has, err = testEngine.Table("record_exist").Where("name = ?", "test1").Exist()
 ```Go
 var users []User
 err := engine.Where("name = ?", name).And("age > 10").Limit(10, 0).Find(&users)
-// SELECT * FROM user WHERE name = ? AND age > 10 limit 0 offset 10
+// SELECT * FROM user WHERE name = ? AND age > 10 limit 10 offset 0
 
 type Detail struct {
     Id int64
@@ -241,7 +241,7 @@ err := engine.Table("user").Select("user.*, detail.*")
     Join("INNER", "detail", "detail.user_id = user.id").
     Where("user.name = ?", name).Limit(10, 0).
     Find(&users)
-// SELECT user.*, detail.* FROM user INNER JOIN detail WHERE user.name = ? limit 0 offset 10
+// SELECT user.*, detail.* FROM user INNER JOIN detail WHERE user.name = ? limit 10 offset 0
 ```
 
 * `Iterate` 和 `Rows` 根据条件遍历数据库，可以有两种方式: Iterate and Rows
@@ -272,7 +272,7 @@ for rows.Next() {
 * `Update` 更新数据，除非使用Cols,AllCols函数指明，默认只更新非空和非0的字段
 
 ```Go
-affected, err := engine.Id(1).Update(&user)
+affected, err := engine.ID(1).Update(&user)
 // UPDATE user SET ... Where id = ?
 
 affected, err := engine.Update(&user, &User{Name:name})
@@ -283,14 +283,14 @@ affected, err := engine.In(ids).Update(&user)
 // UPDATE user SET ... Where id IN (?, ?, ?)
 
 // force update indicated columns by Cols
-affected, err := engine.Id(1).Cols("age").Update(&User{Name:name, Age: 12})
+affected, err := engine.ID(1).Cols("age").Update(&User{Name:name, Age: 12})
 // UPDATE user SET age = ?, updated=? Where id = ?
 
 // force NOT update indicated columns by Omit
-affected, err := engine.Id(1).Omit("name").Update(&User{Name:name, Age: 12})
+affected, err := engine.ID(1).Omit("name").Update(&User{Name:name, Age: 12})
 // UPDATE user SET age = ?, updated=? Where id = ?
 
-affected, err := engine.Id(1).AllCols().Update(&user)
+affected, err := engine.ID(1).AllCols().Update(&user)
 // UPDATE user SET name=?,age=?,salt=?,passwd=?,updated=? Where id = ?
 ```
 
diff --git a/dialect_postgres.go b/dialect_postgres.go
index 83e9a101..2b2a0b78 100644
--- a/dialect_postgres.go
+++ b/dialect_postgres.go
@@ -764,6 +764,9 @@ var (
 		"YES":                       true,
 		"ZONE":                      true,
 	}
+
+	// DefaultPostgresSchema default postgres schema
+	DefaultPostgresSchema = "public"
 )
 
 type postgres struct {
@@ -771,7 +774,14 @@ type postgres struct {
 }
 
 func (db *postgres) Init(d *core.DB, uri *core.Uri, drivername, dataSourceName string) error {
-	return db.Base.Init(d, db, uri, drivername, dataSourceName)
+	err := db.Base.Init(d, db, uri, drivername, dataSourceName)
+	if err != nil {
+		return err
+	}
+	if db.Schema == "" {
+		db.Schema = DefaultPostgresSchema
+	}
+	return nil
 }
 
 func (db *postgres) SqlType(c *core.Column) string {
@@ -868,29 +878,35 @@ func (db *postgres) IndexOnTable() bool {
 }
 
 func (db *postgres) IndexCheckSql(tableName, idxName string) (string, []interface{}) {
-	args := []interface{}{tableName, idxName}
+	if len(db.Schema) == 0 {
+		args := []interface{}{tableName, idxName}
+		return `SELECT indexname FROM pg_indexes WHERE tablename = ? AND indexname = ?`, args
+	}
+
+	args := []interface{}{db.Schema, tableName, idxName}
 	return `SELECT indexname FROM pg_indexes ` +
-		`WHERE tablename = ? AND indexname = ?`, args
+		`WHERE schemaname = ? AND tablename = ? AND indexname = ?`, args
 }
 
 func (db *postgres) TableCheckSql(tableName string) (string, []interface{}) {
-	args := []interface{}{tableName}
-	return `SELECT tablename FROM pg_tables WHERE tablename = ?`, args
+	if len(db.Schema) == 0 {
+		args := []interface{}{tableName}
+		return `SELECT tablename FROM pg_tables WHERE tablename = ?`, args
+	}
+	args := []interface{}{db.Schema, tableName}
+	return `SELECT tablename FROM pg_tables WHERE schemaname = ? AND tablename = ?`, args
 }
 
-/*func (db *postgres) ColumnCheckSql(tableName, colName string) (string, []interface{}) {
-	args := []interface{}{tableName, colName}
-	return "SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = ?" +
-		" AND column_name = ?", args
-}*/
-
 func (db *postgres) ModifyColumnSql(tableName string, col *core.Column) string {
-	return fmt.Sprintf("alter table %s ALTER COLUMN %s TYPE %s",
-		tableName, col.Name, db.SqlType(col))
+	if len(db.Schema) == 0 {
+		return fmt.Sprintf("alter table %s ALTER COLUMN %s TYPE %s",
+			tableName, col.Name, db.SqlType(col))
+	}
+	return fmt.Sprintf("alter table %s.%s ALTER COLUMN %s TYPE %s",
+		db.Schema, tableName, col.Name, db.SqlType(col))
 }
 
 func (db *postgres) DropIndexSql(tableName string, index *core.Index) string {
-	//var unique string
 	quote := db.Quote
 	idxName := index.Name
 
@@ -906,9 +922,14 @@ func (db *postgres) DropIndexSql(tableName string, index *core.Index) string {
 }
 
 func (db *postgres) IsColumnExist(tableName, colName string) (bool, error) {
-	args := []interface{}{tableName, colName}
-	query := "SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = $1" +
-		" AND column_name = $2"
+	args := []interface{}{db.Schema, tableName, colName}
+	query := "SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = $1 AND table_name = $2" +
+		" AND column_name = $3"
+	if len(db.Schema) == 0 {
+		args = []interface{}{tableName, colName}
+		query = "SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = $1" +
+			" AND column_name = $2"
+	}
 	db.LogSQL(query, args)
 
 	rows, err := db.DB().Query(query, args...)
@@ -921,8 +942,7 @@ func (db *postgres) IsColumnExist(tableName, colName string) (bool, error) {
 }
 
 func (db *postgres) GetColumns(tableName string) ([]string, map[string]*core.Column, error) {
-	// FIXME: the schema should be replaced by user custom's
-	args := []interface{}{tableName, "public"}
+	args := []interface{}{tableName}
 	s := `SELECT column_name, column_default, is_nullable, data_type, character_maximum_length, numeric_precision, numeric_precision_radix ,
     CASE WHEN p.contype = 'p' THEN true ELSE false END AS primarykey,
     CASE WHEN p.contype = 'u' THEN true ELSE false END AS uniquekey
@@ -933,7 +953,15 @@ FROM pg_attribute f
     LEFT JOIN pg_constraint p ON p.conrelid = c.oid AND f.attnum = ANY (p.conkey)
     LEFT JOIN pg_class AS g ON p.confrelid = g.oid
     LEFT JOIN INFORMATION_SCHEMA.COLUMNS s ON s.column_name=f.attname AND c.relname=s.table_name
-WHERE c.relkind = 'r'::char AND c.relname = $1 AND s.table_schema = $2 AND f.attnum > 0 ORDER BY f.attnum;`
+WHERE c.relkind = 'r'::char AND c.relname = $1%s AND f.attnum > 0 ORDER BY f.attnum;`
+
+	var f string
+	if len(db.Schema) != 0 {
+		args = append(args, db.Schema)
+		f = "AND s.table_schema = $2"
+	}
+	s = fmt.Sprintf(s, f)
+
 	db.LogSQL(s, args)
 
 	rows, err := db.DB().Query(s, args...)
@@ -1023,9 +1051,13 @@ WHERE c.relkind = 'r'::char AND c.relname = $1 AND s.table_schema = $2 AND f.att
 }
 
 func (db *postgres) GetTables() ([]*core.Table, error) {
-	// FIXME: replace public to user customrize schema
-	args := []interface{}{"public"}
-	s := fmt.Sprintf("SELECT tablename FROM pg_tables WHERE schemaname = $1")
+	args := []interface{}{}
+	s := "SELECT tablename FROM pg_tables"
+	if len(db.Schema) != 0 {
+		args = append(args, db.Schema)
+		s = s + " WHERE schemaname = $1"
+	}
+
 	db.LogSQL(s, args)
 
 	rows, err := db.DB().Query(s, args...)
@@ -1049,10 +1081,13 @@ func (db *postgres) GetTables() ([]*core.Table, error) {
 }
 
 func (db *postgres) GetIndexes(tableName string) (map[string]*core.Index, error) {
-	// FIXME: replace the public schema to user specify schema
-	args := []interface{}{"public", tableName}
-	s := fmt.Sprintf("SELECT indexname, indexdef FROM pg_indexes WHERE schemaname=$1 AND tablename=$2")
+	args := []interface{}{tableName}
+	s := fmt.Sprintf("SELECT indexname, indexdef FROM pg_indexes WHERE tablename=$1")
 	db.LogSQL(s, args)
+	if len(db.Schema) != 0 {
+		args = append(args, db.Schema)
+		s = s + " AND schemaname=$2"
+	}
 
 	rows, err := db.DB().Query(s, args...)
 	if err != nil {
diff --git a/dialect_postgres_test.go b/dialect_postgres_test.go
index 0da7fc77..2ee1e2f3 100644
--- a/dialect_postgres_test.go
+++ b/dialect_postgres_test.go
@@ -7,11 +7,7 @@ import (
 	"github.com/go-xorm/core"
 )
 
-func TestPostgresDialect(t *testing.T) {
-	TestParse(t)
-}
-
-func TestParse(t *testing.T) {
+func TestParsePostgres(t *testing.T) {
 	tests := []struct {
 		in       string
 		expected string
@@ -20,10 +16,10 @@ func TestParse(t *testing.T) {
 		{"postgres://auser:password@localhost:5432/db?sslmode=disable", "db", true},
 		{"postgresql://auser:password@localhost:5432/db?sslmode=disable", "db", true},
 		{"postg://auser:password@localhost:5432/db?sslmode=disable", "db", false},
-		{"postgres://auser:pass with space@localhost:5432/db?sslmode=disable", "db", true},
-		{"postgres:// auser : password@localhost:5432/db?sslmode=disable", "db", true},
+		//{"postgres://auser:pass with space@localhost:5432/db?sslmode=disable", "db", true},
+		//{"postgres:// auser : password@localhost:5432/db?sslmode=disable", "db", true},
 		{"postgres://%20auser%20:pass%20with%20space@localhost:5432/db?sslmode=disable", "db", true},
-		{"postgres://auser:パスワード@localhost:5432/データベース?sslmode=disable", "データベース", true},
+		//{"postgres://auser:パスワード@localhost:5432/データベース?sslmode=disable", "データベース", true},
 		{"dbname=db sslmode=disable", "db", true},
 		{"user=auser password=password dbname=db sslmode=disable", "db", true},
 		{"", "db", false},
diff --git a/engine.go b/engine.go
index 444611af..52ec1e3f 100644
--- a/engine.go
+++ b/engine.go
@@ -1453,6 +1453,13 @@ func (engine *Engine) Find(beans interface{}, condiBeans ...interface{}) error {
 	return session.Find(beans, condiBeans...)
 }
 
+// FindAndCount find the results and also return the counts
+func (engine *Engine) FindAndCount(rowsSlicePtr interface{}, condiBean ...interface{}) (int64, error) {
+	session := engine.NewSession()
+	defer session.Close()
+	return session.FindAndCount(rowsSlicePtr, condiBean...)
+}
+
 // Iterate record by record handle records from table, bean's non-empty fields
 // are conditions.
 func (engine *Engine) Iterate(bean interface{}, fun IterFunc) error {
diff --git a/interface.go b/interface.go
index 9a3b6da0..85a46a27 100644
--- a/interface.go
+++ b/interface.go
@@ -30,6 +30,7 @@ type Interface interface {
 	Exec(string, ...interface{}) (sql.Result, error)
 	Exist(bean ...interface{}) (bool, error)
 	Find(interface{}, ...interface{}) error
+	FindAndCount(interface{}, ...interface{}) (int64, error)
 	Get(interface{}) (bool, error)
 	GroupBy(keys string) *Session
 	ID(interface{}) *Session
diff --git a/migrate/migrate.go b/migrate/migrate.go
index 6c2a13a8..cca4e523 100644
--- a/migrate/migrate.go
+++ b/migrate/migrate.go
@@ -122,7 +122,10 @@ func (m *Migrate) RollbackLast() error {
 func (m *Migrate) getLastRunnedMigration() (*Migration, error) {
 	for i := len(m.migrations) - 1; i >= 0; i-- {
 		migration := m.migrations[i]
-		if m.migrationDidRun(migration) {
+		run, err := m.migrationDidRun(migration)
+		if err != nil {
+			return nil, err
+		} else if run {
 			return migration, nil
 		}
 	}
@@ -165,7 +168,12 @@ func (m *Migrate) runMigration(migration *Migration) error {
 		return ErrMissingID
 	}
 
-	if !m.migrationDidRun(migration) {
+	run, err :=m.migrationDidRun(migration)
+	if err != nil {
+		return err
+	}
+
+	if !run {
 		if err := migration.Migrate(m.db); err != nil {
 			return err
 		}
@@ -193,11 +201,9 @@ func (m *Migrate) createMigrationTableIfNotExists() error {
 	return nil
 }
 
-func (m *Migrate) migrationDidRun(mig *Migration) bool {
-	row := m.db.DB().QueryRow(fmt.Sprintf("SELECT COUNT(*) FROM %s WHERE %s = ?", m.options.TableName, m.options.IDColumnName), mig.ID)
-	var count int
-	row.Scan(&count)
-	return count > 0
+func (m *Migrate) migrationDidRun(mig *Migration) (bool, error) {
+	count, err := m.db.SQL(fmt.Sprintf("SELECT COUNT(*) FROM %s WHERE %s = ?", m.options.TableName, m.options.IDColumnName), mig.ID).Count()
+	return count > 0, err
 }
 
 func (m *Migrate) isFirstRun() bool {
diff --git a/session_exist.go b/session_exist.go
index 049c1ddf..378a6483 100644
--- a/session_exist.go
+++ b/session_exist.go
@@ -10,6 +10,7 @@ import (
 	"reflect"
 
 	"github.com/go-xorm/builder"
+	"github.com/go-xorm/core"
 )
 
 // Exist returns true if the record exist otherwise return false
@@ -35,10 +36,18 @@ func (session *Session) Exist(bean ...interface{}) (bool, error) {
 					return false, err
 				}
 
-				sqlStr = fmt.Sprintf("SELECT * FROM %s WHERE %s LIMIT 1", tableName, condSQL)
+				if session.engine.dialect.DBType() == core.MSSQL {
+					sqlStr = fmt.Sprintf("SELECT top 1 * FROM %s WHERE %s", tableName, condSQL)
+				} else {
+					sqlStr = fmt.Sprintf("SELECT * FROM %s WHERE %s LIMIT 1", tableName, condSQL)
+				}
 				args = condArgs
 			} else {
-				sqlStr = fmt.Sprintf("SELECT * FROM %s LIMIT 1", tableName)
+				if session.engine.dialect.DBType() == core.MSSQL {
+					sqlStr = fmt.Sprintf("SELECT top 1 * FROM %s", tableName)
+				} else {
+					sqlStr = fmt.Sprintf("SELECT * FROM %s LIMIT 1", tableName)
+				}
 				args = []interface{}{}
 			}
 		} else {
diff --git a/session_find.go b/session_find.go
index f95dcfef..f9b3777f 100644
--- a/session_find.go
+++ b/session_find.go
@@ -29,6 +29,36 @@ func (session *Session) Find(rowsSlicePtr interface{}, condiBean ...interface{})
 	return session.find(rowsSlicePtr, condiBean...)
 }
 
+// FindAndCount find the results and also return the counts
+func (session *Session) FindAndCount(rowsSlicePtr interface{}, condiBean ...interface{}) (int64, error) {
+	if session.isAutoClose {
+		defer session.Close()
+	}
+
+	session.autoResetStatement = false
+	err := session.find(rowsSlicePtr, condiBean...)
+	if err != nil {
+		return 0, err
+	}
+
+	sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
+	if sliceValue.Kind() != reflect.Slice && sliceValue.Kind() != reflect.Map {
+		return 0, errors.New("needs a pointer to a slice or a map")
+	}
+
+	sliceElementType := sliceValue.Type().Elem()
+	if sliceElementType.Kind() == reflect.Ptr {
+		sliceElementType = sliceElementType.Elem()
+	}
+	session.autoResetStatement = true
+
+	if session.statement.selectStr != "" {
+		session.statement.selectStr = ""
+	}
+
+	return session.Count(reflect.New(sliceElementType).Interface())
+}
+
 func (session *Session) find(rowsSlicePtr interface{}, condiBean ...interface{}) error {
 	sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
 	if sliceValue.Kind() != reflect.Slice && sliceValue.Kind() != reflect.Map {
@@ -128,7 +158,7 @@ func (session *Session) find(rowsSlicePtr interface{}, condiBean ...interface{})
 		}
 
 		args = append(session.statement.joinArgs, condArgs...)
-		sqlStr, err = session.statement.genSelectSQL(columnStr, condSQL)
+		sqlStr, err = session.statement.genSelectSQL(columnStr, condSQL, true)
 		if err != nil {
 			return err
 		}
diff --git a/session_find_test.go b/session_find_test.go
index 393e4621..20c15362 100644
--- a/session_find_test.go
+++ b/session_find_test.go
@@ -488,3 +488,84 @@ func TestFindBit(t *testing.T) {
 	assert.NoError(t, err)
 	assert.EqualValues(t, 2, len(results))
 }
+
+func TestFindMark(t *testing.T) {
+
+	type Mark struct {
+		Mark1 string `xorm:"VARCHAR(1)"`
+		Mark2 string `xorm:"VARCHAR(1)"`
+		MarkA string `xorm:"VARCHAR(1)"`
+	}
+
+	assert.NoError(t, prepareEngine())
+	assertSync(t, new(Mark))
+
+	cnt, err := testEngine.Insert([]Mark{
+		{
+			Mark1: "1",
+			Mark2: "2",
+			MarkA: "A",
+		},
+		{
+			Mark1: "1",
+			Mark2: "2",
+			MarkA: "A",
+		},
+	})
+	assert.NoError(t, err)
+	assert.EqualValues(t, 2, cnt)
+
+	var results = make([]Mark, 0, 2)
+	err = testEngine.Find(&results)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 2, len(results))
+}
+
+func TestFindAndCountOneFunc(t *testing.T) {
+	type FindAndCountStruct struct {
+		Id      int64
+		Content string
+		Msg     bool `xorm:"bit"`
+	}
+
+	assert.NoError(t, prepareEngine())
+	assertSync(t, new(FindAndCountStruct))
+
+	cnt, err := testEngine.Insert([]FindAndCountStruct{
+		{
+			Content: "111",
+			Msg:     false,
+		},
+		{
+			Content: "222",
+			Msg:     true,
+		},
+	})
+	assert.NoError(t, err)
+	assert.EqualValues(t, 2, cnt)
+
+	var results = make([]FindAndCountStruct, 0, 2)
+	cnt, err = testEngine.FindAndCount(&results)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 2, len(results))
+	assert.EqualValues(t, 2, cnt)
+
+	results = make([]FindAndCountStruct, 0, 1)
+	cnt, err = testEngine.Where("msg = ?", true).FindAndCount(&results)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 1, len(results))
+	assert.EqualValues(t, 1, cnt)
+
+	results = make([]FindAndCountStruct, 0, 1)
+	cnt, err = testEngine.Where("msg = ?", true).Limit(1).FindAndCount(&results)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 1, len(results))
+	assert.EqualValues(t, 1, cnt)
+
+	results = make([]FindAndCountStruct, 0, 1)
+	cnt, err = testEngine.Where("msg = ?", true).Select("id, content, msg").
+		Limit(1).FindAndCount(&results)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 1, len(results))
+	assert.EqualValues(t, 1, cnt)
+}
diff --git a/session_get.go b/session_get.go
index 8faf53c0..68b37af7 100644
--- a/session_get.go
+++ b/session_get.go
@@ -5,6 +5,7 @@
 package xorm
 
 import (
+	"database/sql"
 	"errors"
 	"reflect"
 	"strconv"
@@ -79,6 +80,13 @@ func (session *Session) nocacheGet(beanKind reflect.Kind, table *core.Table, bea
 		return false, nil
 	}
 
+	switch bean.(type) {
+	case sql.NullInt64, sql.NullBool, sql.NullFloat64, sql.NullString:
+		return true, rows.Scan(&bean)
+	case *sql.NullInt64, *sql.NullBool, *sql.NullFloat64, *sql.NullString:
+		return true, rows.Scan(bean)
+	}
+
 	switch beanKind {
 	case reflect.Struct:
 		fields, err := rows.Columns()
diff --git a/session_get_test.go b/session_get_test.go
index 571b8077..61398d1f 100644
--- a/session_get_test.go
+++ b/session_get_test.go
@@ -5,6 +5,7 @@
 package xorm
 
 import (
+	"database/sql"
 	"fmt"
 	"testing"
 	"time"
@@ -31,7 +32,7 @@ func TestGetVar(t *testing.T) {
 		Age:   28,
 		Money: 1.5,
 	}
-	_, err := testEngine.InsertOne(data)
+	_, err := testEngine.InsertOne(&data)
 	assert.NoError(t, err)
 
 	var msg string
@@ -55,6 +56,27 @@ func TestGetVar(t *testing.T) {
 	assert.Equal(t, true, has)
 	assert.EqualValues(t, 28, age2)
 
+	var id sql.NullInt64
+	has, err = testEngine.Table("get_var").Cols("id").Get(&id)
+	assert.NoError(t, err)
+	assert.Equal(t, true, has)
+	assert.Equal(t, true, id.Valid)
+	assert.EqualValues(t, data.Id, id.Int64)
+
+	var msgNull sql.NullString
+	has, err = testEngine.Table("get_var").Cols("msg").Get(&msgNull)
+	assert.NoError(t, err)
+	assert.Equal(t, true, has)
+	assert.Equal(t, true, msgNull.Valid)
+	assert.EqualValues(t, data.Msg, msgNull.String)
+
+	var nullMoney sql.NullFloat64
+	has, err = testEngine.Table("get_var").Cols("money").Get(&nullMoney)
+	assert.NoError(t, err)
+	assert.Equal(t, true, has)
+	assert.Equal(t, true, nullMoney.Valid)
+	assert.EqualValues(t, data.Money, nullMoney.Float64)
+
 	var money float64
 	has, err = testEngine.Table("get_var").Cols("money").Get(&money)
 	assert.NoError(t, err)
diff --git a/session_insert_test.go b/session_insert_test.go
index 05a3d3bf..080ace9b 100644
--- a/session_insert_test.go
+++ b/session_insert_test.go
@@ -662,3 +662,81 @@ func TestInsertCreatedInt64(t *testing.T) {
 
 	assert.EqualValues(t, data.Created, data2.Created)
 }
+
+type MyUserinfo Userinfo
+
+func (MyUserinfo) TableName() string {
+	return "user_info"
+}
+
+func TestInsertMulti3(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	testEngine.ShowSQL(true)
+	assertSync(t, new(MyUserinfo))
+
+	users := []MyUserinfo{
+		{Username: "xlw", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		{Username: "xlw2", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+		{Username: "xlw11", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		{Username: "xlw22", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+	}
+	cnt, err := testEngine.Insert(&users)
+	assert.NoError(t, err)
+	assert.EqualValues(t, len(users), cnt)
+
+	users2 := []*MyUserinfo{
+		&MyUserinfo{Username: "1xlw", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		&MyUserinfo{Username: "1xlw2", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+		&MyUserinfo{Username: "1xlw11", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		&MyUserinfo{Username: "1xlw22", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+	}
+
+	cnt, err = testEngine.Insert(&users2)
+	assert.NoError(t, err)
+	assert.EqualValues(t, len(users), cnt)
+}
+
+type MyUserinfo2 struct {
+	Uid        int64  `xorm:"id pk not null autoincr"`
+	Username   string `xorm:"unique"`
+	Departname string
+	Alias      string `xorm:"-"`
+	Created    time.Time
+	Detail     Userdetail `xorm:"detail_id int(11)"`
+	Height     float64
+	Avatar     []byte
+	IsMan      bool
+}
+
+func (MyUserinfo2) TableName() string {
+	return "user_info"
+}
+
+func TestInsertMulti4(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	testEngine.ShowSQL(true)
+	assertSync(t, new(MyUserinfo2))
+
+	users := []MyUserinfo2{
+		{Username: "xlw", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		{Username: "xlw2", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+		{Username: "xlw11", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		{Username: "xlw22", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+	}
+	cnt, err := testEngine.Insert(&users)
+	assert.NoError(t, err)
+	assert.EqualValues(t, len(users), cnt)
+
+	users2 := []*MyUserinfo2{
+		&MyUserinfo2{Username: "1xlw", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		&MyUserinfo2{Username: "1xlw2", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+		&MyUserinfo2{Username: "1xlw11", Departname: "dev", Alias: "lunny2", Created: time.Now()},
+		&MyUserinfo2{Username: "1xlw22", Departname: "dev", Alias: "lunny3", Created: time.Now()},
+	}
+
+	cnt, err = testEngine.Insert(&users2)
+	assert.NoError(t, err)
+	assert.EqualValues(t, len(users), cnt)
+}
diff --git a/session_query.go b/session_query.go
index 5b4e0dc4..e8fbd8d3 100644
--- a/session_query.go
+++ b/session_query.go
@@ -17,7 +17,17 @@ import (
 
 func (session *Session) genQuerySQL(sqlorArgs ...interface{}) (string, []interface{}, error) {
 	if len(sqlorArgs) > 0 {
-		return sqlorArgs[0].(string), sqlorArgs[1:], nil
+		switch sqlorArgs[0].(type) {
+		case string:
+			return sqlorArgs[0].(string), sqlorArgs[1:], nil
+		case *builder.Builder:
+			return sqlorArgs[0].(*builder.Builder).ToSQL()
+		case builder.Builder:
+			bd := sqlorArgs[0].(builder.Builder)
+			return bd.ToSQL()
+		default:
+			return "", nil, ErrUnSupportedType
+		}
 	}
 
 	if session.statement.RawSQL != "" {
@@ -60,7 +70,7 @@ func (session *Session) genQuerySQL(sqlorArgs ...interface{}) (string, []interfa
 	}
 
 	args := append(session.statement.joinArgs, condArgs...)
-	sqlStr, err := session.statement.genSelectSQL(columnStr, condSQL)
+	sqlStr, err := session.statement.genSelectSQL(columnStr, condSQL, true)
 	if err != nil {
 		return "", nil, err
 	}
diff --git a/session_query_test.go b/session_query_test.go
index e84a7142..1e556453 100644
--- a/session_query_test.go
+++ b/session_query_test.go
@@ -10,6 +10,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/go-xorm/builder"
+
 	"github.com/stretchr/testify/assert"
 )
 
@@ -183,3 +185,48 @@ func TestQueryNoParams(t *testing.T) {
 	assert.NoError(t, err)
 	assertResult(t, results)
 }
+
+func TestQueryWithBuilder(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	type QueryWithBuilder struct {
+		Id      int64  `xorm:"autoincr pk"`
+		Msg     string `xorm:"varchar(255)"`
+		Age     int
+		Money   float32
+		Created time.Time `xorm:"created"`
+	}
+
+	testEngine.ShowSQL(true)
+
+	assert.NoError(t, testEngine.Sync2(new(QueryWithBuilder)))
+
+	var q = QueryWithBuilder{
+		Msg:   "message",
+		Age:   20,
+		Money: 3000,
+	}
+	cnt, err := testEngine.Insert(&q)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 1, cnt)
+
+	assertResult := func(t *testing.T, results []map[string][]byte) {
+		assert.EqualValues(t, 1, len(results))
+		id, err := strconv.ParseInt(string(results[0]["id"]), 10, 64)
+		assert.NoError(t, err)
+		assert.EqualValues(t, 1, id)
+		assert.Equal(t, "message", string(results[0]["msg"]))
+
+		age, err := strconv.Atoi(string(results[0]["age"]))
+		assert.NoError(t, err)
+		assert.EqualValues(t, 20, age)
+
+		money, err := strconv.ParseFloat(string(results[0]["money"]), 32)
+		assert.NoError(t, err)
+		assert.EqualValues(t, 3000, money)
+	}
+
+	results, err := testEngine.Query(builder.Select("*").From("query_with_builder"))
+	assert.NoError(t, err)
+	assertResult(t, results)
+}
\ No newline at end of file
diff --git a/session_schema.go b/session_schema.go
index a2708b73..9d9edca8 100644
--- a/session_schema.go
+++ b/session_schema.go
@@ -255,6 +255,12 @@ func (session *Session) Sync2(beans ...interface{}) error {
 		return err
 	}
 
+	session.autoResetStatement = false
+	defer func() {
+		session.autoResetStatement = true
+		session.resetStatement()
+	}()
+
 	var structTables []*core.Table
 
 	for _, bean := range beans {
diff --git a/session_schema_test.go b/session_schema_test.go
index fa2fa7eb..712f8a04 100644
--- a/session_schema_test.go
+++ b/session_schema_test.go
@@ -217,3 +217,51 @@ func TestCharst(t *testing.T) {
 		panic(err)
 	}
 }
+
+func TestSync2_1(t *testing.T) {
+	type WxTest struct {
+		Id                 int   `xorm:"not null pk autoincr INT(64)`
+		Passport_user_type int16 `xorm:"null int"`
+		Id_delete          int8  `xorm:"null int default 1"`
+	}
+
+	assert.NoError(t, prepareEngine())
+
+	assert.NoError(t, testEngine.DropTables("wx_test"))
+	assert.NoError(t, testEngine.Sync2(new(WxTest)))
+	assert.NoError(t, testEngine.Sync2(new(WxTest)))
+}
+
+func TestUnique_1(t *testing.T) {
+	type UserUnique struct {
+		Id        int64
+		UserName  string    `xorm:"unique varchar(25) not null"`
+		Password  string    `xorm:"varchar(255) not null"`
+		Admin     bool      `xorm:"not null"`
+		CreatedAt time.Time `xorm:"created"`
+		UpdatedAt time.Time `xorm:"updated"`
+	}
+
+	assert.NoError(t, prepareEngine())
+
+	assert.NoError(t, testEngine.DropTables("user_unique"))
+	assert.NoError(t, testEngine.Sync2(new(UserUnique)))
+
+	assert.NoError(t, testEngine.DropTables("user_unique"))
+	assert.NoError(t, testEngine.CreateTables(new(UserUnique)))
+	assert.NoError(t, testEngine.CreateUniques(new(UserUnique)))
+}
+
+func TestSync2_2(t *testing.T) {
+	type TestSync2Index struct {
+		Id     int64
+		UserId int64 `xorm:"index"`
+	}
+
+	assert.NoError(t, prepareEngine())
+
+	for i := 0; i < 10; i++ {
+		tableName := fmt.Sprintf("test_sync2_index_%d", i)
+		assert.NoError(t, testEngine.Table(tableName).Sync2(new(TestSync2Index)))
+	}
+}
diff --git a/statement.go b/statement.go
index 6400425b..35c4a472 100644
--- a/statement.go
+++ b/statement.go
@@ -988,7 +988,7 @@ func (statement *Statement) genGetSQL(bean interface{}) (string, []interface{},
 		return "", nil, err
 	}
 
-	sqlStr, err := statement.genSelectSQL(columnStr, condSQL)
+	sqlStr, err := statement.genSelectSQL(columnStr, condSQL, true)
 	if err != nil {
 		return "", nil, err
 	}
@@ -1018,7 +1018,7 @@ func (statement *Statement) genCountSQL(beans ...interface{}) (string, []interfa
 			selectSQL = "count(*)"
 		}
 	}
-	sqlStr, err := statement.genSelectSQL(selectSQL, condSQL)
+	sqlStr, err := statement.genSelectSQL(selectSQL, condSQL, false)
 	if err != nil {
 		return "", nil, err
 	}
@@ -1043,7 +1043,7 @@ func (statement *Statement) genSumSQL(bean interface{}, columns ...string) (stri
 		return "", nil, err
 	}
 
-	sqlStr, err := statement.genSelectSQL(sumSelect, condSQL)
+	sqlStr, err := statement.genSelectSQL(sumSelect, condSQL, true)
 	if err != nil {
 		return "", nil, err
 	}
@@ -1051,7 +1051,7 @@ func (statement *Statement) genSumSQL(bean interface{}, columns ...string) (stri
 	return sqlStr, append(statement.joinArgs, condArgs...), nil
 }
 
-func (statement *Statement) genSelectSQL(columnStr, condSQL string) (a string, err error) {
+func (statement *Statement) genSelectSQL(columnStr, condSQL string, needLimit bool) (a string, err error) {
 	var distinct string
 	if statement.IsDistinct && !strings.HasPrefix(columnStr, "count") {
 		distinct = "DISTINCT "
@@ -1149,15 +1149,17 @@ func (statement *Statement) genSelectSQL(columnStr, condSQL string) (a string, e
 	if statement.OrderStr != "" {
 		a = fmt.Sprintf("%v ORDER BY %v", a, statement.OrderStr)
 	}
-	if dialect.DBType() != core.MSSQL && dialect.DBType() != core.ORACLE {
-		if statement.Start > 0 {
-			a = fmt.Sprintf("%v LIMIT %v OFFSET %v", a, statement.LimitN, statement.Start)
-		} else if statement.LimitN > 0 {
-			a = fmt.Sprintf("%v LIMIT %v", a, statement.LimitN)
-		}
-	} else if dialect.DBType() == core.ORACLE {
-		if statement.Start != 0 || statement.LimitN != 0 {
-			a = fmt.Sprintf("SELECT %v FROM (SELECT %v,ROWNUM RN FROM (%v) at WHERE ROWNUM <= %d) aat WHERE RN > %d", columnStr, columnStr, a, statement.Start+statement.LimitN, statement.Start)
+	if needLimit {
+		if dialect.DBType() != core.MSSQL && dialect.DBType() != core.ORACLE {
+			if statement.Start > 0 {
+				a = fmt.Sprintf("%v LIMIT %v OFFSET %v", a, statement.LimitN, statement.Start)
+			} else if statement.LimitN > 0 {
+				a = fmt.Sprintf("%v LIMIT %v", a, statement.LimitN)
+			}
+		} else if dialect.DBType() == core.ORACLE {
+			if statement.Start != 0 || statement.LimitN != 0 {
+				a = fmt.Sprintf("SELECT %v FROM (SELECT %v,ROWNUM RN FROM (%v) at WHERE ROWNUM <= %d) aat WHERE RN > %d", columnStr, columnStr, a, statement.Start+statement.LimitN, statement.Start)
+			}
 		}
 	}
 	if statement.IsForUpdate {