diff --git a/chain.go b/chain.go
index 65720ad..af8106a 100644
--- a/chain.go
+++ b/chain.go
@@ -69,6 +69,9 @@ func (this *Query) Conn(conn *sql.DB) *Query {
 }
 func (this *Query) Db(dbname string) *Query {
 	this.dbname = dbname
+	if DB_PROVIDER == "PgsqlDb" {
+		this.dbname = ""
+	}
 	return this
 }
 
@@ -226,6 +229,9 @@ func (this *Query) GetTableInfo(table string) (map[string]interface{}, error) {
 	if this.conn == nil {
 		this.conn = DB
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmtSql, err := this.conn.Prepare(sql)
 	if err != nil {
 		return nil, err
@@ -414,7 +420,11 @@ func (this *Query) BuildSelectSql() (map[string]interface{}, error) {
 		from := strconv.Itoa((this.page - 1) * this.page_size)
 		offset := strconv.Itoa(this.page_size)
 		if from != "" && offset != "" {
-			sql = helper.StringJoin(sql, " limit ", from, " , ", offset)
+			if DB_PROVIDER == "PgsqlDb" {
+				sql = helper.StringJoin(sql, " limit ", offset, " OFFSET ", from)
+			} else {
+				sql = helper.StringJoin(sql, " limit ", from, " , ", offset)
+			}
 		}
 	}
 	if this.debug {
@@ -429,6 +439,9 @@ func (this *Query) BuildSelectSql() (map[string]interface{}, error) {
 	if condition_len != len(this.value) {
 		return nil, errors.New("参数错误，条件值错误")
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	return map[string]interface{}{
 		"sql":   sql,
 		"value": this.value,
@@ -501,9 +514,7 @@ func (this *Query) UpdateStmt() error {
 		this.conn = DB
 	}
 	if DB_PROVIDER == "PgsqlDb" {
-		log.Println("PgsqlDb sql", sql)
 		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
-		log.Println("PgsqlDb sql", sql)
 	}
 	stmt, err = this.conn.Prepare(sql)
 
@@ -608,6 +619,9 @@ func (this *Query) UpdateAllStmt() error {
 	if len(valSql) > 1 {
 		setText = " value "
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		setText = " values "
+	}
 	sql = helper.StringJoin("insert into ", dbName, " (", strings.Join(this.data, " , "), ")", setText, strings.Join(valSql, ","), " ON DUPLICATE KEY UPDATE ", strings.Join(updSql, " , "))
 
 	if this.debug {
@@ -626,7 +640,9 @@ func (this *Query) UpdateAllStmt() error {
 	if this.conn == nil {
 		this.conn = DB
 	}
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = this.conn.Prepare(sql)
 
 	if err != nil {
@@ -697,6 +713,9 @@ func (this *Query) CreateAllStmt() error {
 	if len(valSql) > 1 {
 		setText = " value "
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		setText = " values "
+	}
 	sql = helper.StringJoin("insert into ", dbName, " (", strings.Join(this.data, " , "), ")", setText, strings.Join(valSql, ","))
 
 	if this.debug {
@@ -745,10 +764,10 @@ func (this *Query) CreateStmt() error {
 		value_data := []string{}
 		for _, rv := range this.data {
 			dv := strings.Split(rv, "=")
-			if len(dv) != 2 {
+			if len(dv) < 2 {
 				return errors.New("参数错误，条件值错误,=号不存在")
 			}
-			if strings.Contains(rv, "=?") {
+			if strings.Contains(rv, "?") {
 				insert_data = append(insert_data, dv[0])
 				value_data = append(value_data, "?")
 			} else {
@@ -780,9 +799,7 @@ func (this *Query) CreateStmt() error {
 		this.conn = DB
 	}
 	if DB_PROVIDER == "PgsqlDb" {
-		log.Println("PgsqlDb sql", sql)
 		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
-		log.Println("PgsqlDb sql", sql)
 	}
 	stmt, err = this.conn.Prepare(sql)
 
@@ -832,7 +849,9 @@ func (this *Query) DeleteStmt() error {
 	if this.conn == nil {
 		this.conn = DB
 	}
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = this.conn.Prepare(sql)
 
 	if err != nil {
diff --git a/conn.go b/conn.go
index ca4bd88..003ca15 100644
--- a/conn.go
+++ b/conn.go
@@ -108,7 +108,9 @@ func CloseSlaverConn() error {
 func getTableName(dbName, table string, dbtype ...string) string {
 
 	var db_type string = "mysql"
-
+	if DB_PROVIDER == "PgsqlDb" {
+		dbName = ""
+	}
 	if len(dbtype) > 0 {
 		if dbtype[0] != "" {
 			db_type = dbtype[0]
diff --git a/db.go b/db.go
index 8f3361c..3d596e4 100644
--- a/db.go
+++ b/db.go
@@ -45,16 +45,33 @@ func Insert(dbName, table string, data map[string]string) (int64, error) {
 		valueList[i] = value
 		i++
 	}
-
-	result, err := DB.Exec("insert into "+dbName+" ("+strings.Join(keyList, ",")+") value("+strings.Join(keyStr, ",")+")", valueList...)
-
-	if err != nil {
-		log.Println("ERROR|插入", dbName, "数据失败,", err)
-		return insertId, err
+	var Sql string
+	Sql = "insert into " + dbName + " (" + strings.Join(keyList, ",") + ") values (" + strings.Join(keyStr, ",") + ")"
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+		Sql = helper.StringJoin(Sql, " RETURNING id")
+		stmt, err = DB.Prepare(Sql)
+		if err != nil {
+			return 0, errors.New("创建失败：" + err.Error())
+		}
+		row := stmt.QueryRow(valueList...)
+		var id int64
+		err = row.Scan(&id) // 扫描 RETURNING 返回的 ID
+		if err != nil {
+			return 0, errors.New("创建失败：" + err.Error())
+		}
+		return id, nil
 	} else {
-		insertId, _ = result.LastInsertId()
-		time.Sleep(time.Second * 2)
-		return insertId, nil
+		result, err := DB.Exec(Sql, valueList...)
+
+		if err != nil {
+			log.Println("ERROR|插入", dbName, "数据失败,", err)
+			return insertId, err
+		} else {
+			insertId, _ = result.LastInsertId()
+			time.Sleep(time.Second * 2)
+			return insertId, nil
+		}
 	}
 
 }
@@ -68,7 +85,6 @@ func Update(dbName, table string, data map[string]string, where map[string]strin
 	if dbName == "" && table == "" {
 		return rowsAffected, errors.New("没有数据表")
 	}
-
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
@@ -110,7 +126,12 @@ func Update(dbName, table string, data map[string]string, where map[string]strin
 		log.Println("ERROR|修改数据表", dbName, "时条件中有空数据,条件：", where, "数据：", data)
 		return rowsAffected, errors.New("条件中有空数据")
 	}
-	result, err := DB.Exec("update "+dbName+" set "+strings.Join(keyList, " , ")+" where "+strings.Join(whereStr, " and "), valueList...)
+	var Sql string
+	Sql = "update " + dbName + " set " + strings.Join(keyList, " , ") + " where " + strings.Join(whereStr, " and ")
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+	}
+	result, err := DB.Exec(Sql, valueList...)
 
 	if err != nil {
 		log.Println("ERROR|修改", dbName, "数据失败,", err)
@@ -132,7 +153,6 @@ func Delete(dbName, table string, data map[string]string, del_count ...string) (
 	if dbName == "" && table == "" {
 		return count, errors.New("没有数据表")
 	}
-
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
@@ -168,7 +188,12 @@ func Delete(dbName, table string, data map[string]string, del_count ...string) (
 		limitStr = " limit " + del_count[0]
 
 	}
-	result, err := DB.Exec("delete from "+dbName+" where "+strings.Join(keyList, " and ")+limitStr, valueList...)
+	var Sql string
+	Sql = "delete from " + dbName + " where " + strings.Join(keyList, " and ") + limitStr
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+	}
+	result, err := DB.Exec(Sql, valueList...)
 
 	if err != nil {
 		log.Println("ERROR|删除", dbName, "数据失败,", err)
@@ -192,7 +217,6 @@ func GetData(dbName, table string, title string, where map[string]string, limit
 	if dbName == "" && table == "" {
 		return count, info, errors.New("没有数据表")
 	}
-
 	dbName = getTableName(dbName, table)
 
 	if len(title) < 1 {
@@ -211,7 +235,11 @@ func GetData(dbName, table string, title string, where map[string]string, limit
 		if _, ok := limit["from"]; ok {
 			from = limit["from"]
 		}
-		limitStr += " limit " + from + ",1"
+		if DB_PROVIDER == "PgsqlDb" {
+			limitStr += " limit 1 OFFSET " + from
+		} else {
+			limitStr += " limit " + from + ",1"
+		}
 
 	} else {
 		limitStr = " limit 1"
@@ -242,8 +270,12 @@ func GetData(dbName, table string, title string, where map[string]string, limit
 	var err error
 	var queryNum int = 0
 	for queryNum < 3 { //如发生错误，继续查询3次，防止数据库连接断开问题
-
-		rows, err = DB.Query("SELECT "+title+" FROM "+dbName+" where "+strings.Join(keyList, " and ")+" "+limitStr, valueList...)
+		var Sql string
+		Sql = "SELECT " + title + " FROM " + dbName + " where " + strings.Join(keyList, " and ") + " " + limitStr
+		if DB_PROVIDER == "PgsqlDb" {
+			Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+		}
+		rows, err = DB.Query(Sql, valueList...)
 
 		if err == nil {
 			break
@@ -303,7 +335,6 @@ func GetRow(dbName, table_name, alias string, titles string, with, join [][]stri
 	if dbName == "" && table_name == "" {
 		return count, info, errors.New("没有数据表")
 	}
-
 	table := ""
 	withSql := ""
 	if len(with) > 0 {
@@ -432,9 +463,7 @@ func GetRow(dbName, table_name, alias string, titles string, with, join [][]stri
 
 	for queryNum < 2 { //如发生错误，继续查询2次，防止数据库连接断开问题
 		if DB_PROVIDER == "PgsqlDb" {
-			log.Println("PgsqlDb sql_str", sql_str)
 			sql_str = sqlx.Rebind(sqlx.DOLLAR, sql_str)
-			log.Println("PgsqlDb sql_str", sql_str)
 		}
 		rows, err = db.Query(sql_str, valueList...)
 
@@ -642,9 +671,7 @@ func FetchRows(dbName, table_name, alias string, titles string, with, join [][]s
 	var queryNum int = 0
 	for queryNum < 2 { //如发生错误，继续查询2次，防止数据库连接断开问题
 		if DB_PROVIDER == "PgsqlDb" {
-			log.Println("PgsqlDb sql_str", sql_str)
 			sql_str = sqlx.Rebind(sqlx.DOLLAR, sql_str)
-			log.Println("PgsqlDb sql_str", sql_str)
 		}
 		rows, err = db.Query(sql_str, valueList...)
 
@@ -723,7 +750,6 @@ func GetList(dbName, table string, title string, where map[string]string, limit
 	if dbName == "" && table == "" {
 		return list, errors.New("没有数据表")
 	}
-
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
@@ -751,7 +777,12 @@ func GetList(dbName, table string, title string, where map[string]string, limit
 			from = limit["from"]
 		}
 		if offset != "0" && from != "" {
-			limitStr += " limit " + from + "," + offset
+
+			if DB_PROVIDER == "PgsqlDb" {
+				limitStr += " limit " + offset + " OFFSET " + from
+			} else {
+				limitStr += " limit " + from + "," + offset
+			}
 		}
 	}
 
@@ -785,8 +816,12 @@ func GetList(dbName, table string, title string, where map[string]string, limit
 		}
 
 		for queryNum < 5 { //如发生错误，继续查询5次，防止数据库连接断开问题
-
-			rows, err = DB.Query("select "+title+" from "+dbName+" where "+strings.Join(whereStr, " and ")+" "+limitStr, valueList...)
+			var Sql string
+			Sql = "select " + title + " from " + dbName + " where " + strings.Join(whereStr, " and ") + " " + limitStr
+			if DB_PROVIDER == "PgsqlDb" {
+				Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+			}
+			rows, err = DB.Query(Sql, valueList...)
 
 			if err == nil {
 				break
@@ -850,7 +885,6 @@ func GetTotal(dbName, table string, args ...string) (total int) {
 	if dbName == "" && table == "" {
 		return
 	}
-
 	if strings.Contains(table, "select ") {
 		dbName = table
 	} else {
@@ -868,7 +902,6 @@ func GetTotal(dbName, table string, args ...string) (total int) {
 	var queryNum int = 0
 
 	for queryNum < 5 { //如发生错误，继续查询5次，防止数据库连接断开问题
-
 		rows, err = DB.Query("select count(" + title + ") as count from " + dbName + " limit 1")
 
 		if err == nil {
@@ -952,7 +985,12 @@ func GetCount(dbName, table string, where map[string]string, args ...string) (to
 
 		for queryNum < 5 { //如发生错误，继续查询5次，防止数据库连接断开问题
 
-			rows, err = DB.Query("select count("+title+") as count from "+dbName+" where "+strings.Join(whereStr, " and ")+" limit 1", valueList...)
+			var Sql string
+			Sql = "select count(" + title + ") as count from " + dbName + " where " + strings.Join(whereStr, " and ") + " limit 1"
+			if DB_PROVIDER == "PgsqlDb" {
+				Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+			}
+			rows, err = DB.Query(Sql, valueList...)
 
 			if err == nil {
 				break
@@ -1011,6 +1049,9 @@ func DoQuery(args ...interface{}) ([]map[string]string, error) {
 
 	for queryNum < 3 { //如发生错误，继续查询5次，防止数据库连接断开问题
 		if len(args) > 1 {
+			if DB_PROVIDER == "PgsqlDb" {
+				queryStr = sqlx.Rebind(sqlx.DOLLAR, queryStr)
+			}
 			rows, err = DB.Query(queryStr, args[1:]...) //strings.Join(args[1:], ",")
 			if err != nil {
 				log.Println("ERROR|DoQuery error:", err)
diff --git a/prepare.go b/prepare.go
index 26955ed..6194066 100644
--- a/prepare.go
+++ b/prepare.go
@@ -3,6 +3,7 @@ package dbquery
 import (
 	"database/sql"
 	"errors"
+	"github.com/jmoiron/sqlx"
 	"log"
 	"strings"
 
@@ -41,8 +42,11 @@ func StmtForRead(dbName, table string, title string, where []string, limit map[s
 			offset = limit["offset"]
 		}
 		if from != "" && offset != "" {
-
-			limitStr += " limit " + from + "," + offset
+			if DB_PROVIDER == "PgsqlDb" {
+				limitStr += " limit " + offset + " OFFSET " + from
+			} else {
+				limitStr += " limit " + from + "," + offset
+			}
 		}
 
 	}
@@ -52,7 +56,12 @@ func StmtForRead(dbName, table string, title string, where []string, limit map[s
 
 	if len(where) > 0 {
 		// log.Println("SELECT " + title + " FROM " + dbName + " where " + strings.Join(where, " and ") + limitStr)
-		stmt, err = DB.Prepare("SELECT " + title + " FROM " + dbName + " where " + strings.Join(where, " and ") + limitStr)
+		var Sql string
+		Sql = "SELECT " + title + " FROM " + dbName + " where " + strings.Join(where, " and ") + limitStr
+		if DB_PROVIDER == "PgsqlDb" {
+			Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+		}
+		stmt, err = DB.Prepare(Sql)
 	} else {
 		// log.Println("SELECT " + title + " FROM " + dbName + limitStr)
 		stmt, err = DB.Prepare("SELECT " + title + " FROM " + dbName + limitStr)
@@ -186,8 +195,12 @@ func StmtForUpdate(dbName, table string, data []string, where []string) (*sql.St
 
 	var stmt *sql.Stmt
 	var err error
-
-	stmt, err = DB.Prepare("update " + dbName + " set " + strings.Join(data, " , ") + " where " + strings.Join(where, " and "))
+	var Sql string
+	Sql = "update " + dbName + " set " + strings.Join(data, " , ") + " where " + strings.Join(where, " and ")
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+	}
+	stmt, err = DB.Prepare(Sql)
 
 	return stmt, err
 }
@@ -224,7 +237,34 @@ func StmtForInsert(dbName, table string, data []string) (*sql.Stmt, error) {
 	var stmt *sql.Stmt
 	var err error
 
-	stmt, err = DB.Prepare("insert into " + dbName + " set " + strings.Join(data, " , "))
+	var sql string
+	if DB_PROVIDER == "PgsqlDb" {
+		insert_data := []string{}
+		value_data := []string{}
+		for _, rv := range data {
+			dv := strings.Split(rv, "=")
+			if len(dv) < 2 {
+				return nil, errors.New("参数错误，条件值错误,=号不存在")
+			}
+			if strings.Contains(rv, "?") {
+				insert_data = append(insert_data, dv[0])
+				value_data = append(value_data, "?")
+			} else {
+				insert_data = append(insert_data, dv[0])
+				value_data = append(value_data, dv[1])
+			}
+
+		}
+		sql = helper.StringJoin("insert into ", dbName, " ("+strings.Join(insert_data, " , ")+")", " VALUES ", "("+strings.Join(value_data, " , ")+")", " RETURNING id")
+	} else {
+		sql = helper.StringJoin("insert into ", dbName, " set ", strings.Join(data, " , "))
+	}
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
+
+	//stmt, err = DB.Prepare("insert into " + dbName + " set " + strings.Join(data, " , "))
+	stmt, err = DB.Prepare(sql)
 
 	return stmt, err
 }
@@ -362,7 +402,9 @@ func StmtForQuery(querysql string) (*sql.Stmt, error) {
 
 	var stmt *sql.Stmt
 	var err error
-
+	if DB_PROVIDER == "PgsqlDb" {
+		querysql = sqlx.Rebind(sqlx.DOLLAR, querysql)
+	}
 	stmt, err = DB.Prepare(querysql)
 
 	return stmt, err
diff --git a/transaction.go b/transaction.go
index b755243..bd6cd01 100644
--- a/transaction.go
+++ b/transaction.go
@@ -6,6 +6,8 @@ package dbquery
 import (
 	"database/sql"
 	"errors"
+	"git.tetele.net/tgo/helper"
+	"github.com/jmoiron/sqlx"
 	"log"
 	"strings"
 	"time"
@@ -43,16 +45,33 @@ func TxInsert(tx *sql.Tx, dbname, table string, data map[string]string) (int64,
 		valueList[i] = value
 		i++
 	}
-
-	result, err := tx.Exec("insert into "+dbName+" ("+strings.Join(keyList, ",")+") value("+strings.Join(keyStr, ",")+")", valueList...)
-
-	if err != nil {
-		log.Println("ERROR", "insert into ", dbName, "error:", err)
-		return insertId, err
+	if DB_PROVIDER == "PgsqlDb" {
+		var Sql string
+		Sql = "insert into " + dbName + " (" + strings.Join(keyList, ",") + ") value(" + strings.Join(keyStr, ",") + ")"
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+		Sql = helper.StringJoin(Sql, " RETURNING id")
+		stmt, err = tx.Prepare(Sql)
+		if err != nil {
+			return 0, errors.New("创建失败：" + err.Error())
+		}
+		row := stmt.QueryRow(valueList...)
+		var id int64
+		err = row.Scan(&id) // 扫描 RETURNING 返回的 ID
+		if err != nil {
+			return 0, errors.New("创建失败：" + err.Error())
+		}
+		return id, nil
 	} else {
-		insertId, _ = result.LastInsertId()
-		time.Sleep(time.Second * 2)
-		return insertId, nil
+		result, err := tx.Exec("insert into "+dbName+" ("+strings.Join(keyList, ",")+") value("+strings.Join(keyStr, ",")+")", valueList...)
+
+		if err != nil {
+			log.Println("ERROR", "insert into ", dbName, "error:", err)
+			return insertId, err
+		} else {
+			insertId, _ = result.LastInsertId()
+			time.Sleep(time.Second * 2)
+			return insertId, nil
+		}
 	}
 
 }
@@ -84,28 +103,47 @@ func TxPreInsert(tx *sql.Tx, dbname, table string, data map[string]interface{})
 
 	var field []string = make([]string, len(data))
 	var valuelist []interface{} = make([]interface{}, len(data))
-
+	insert_data := []string{}
+	value_data := []string{}
 	var i int = 0
 	for key, item := range data {
 		field[i] = key + "=?"
 		valuelist[i] = item
 		i++
-	}
+		insert_data = append(insert_data, key)
+		value_data = append(value_data, "?")
+	}
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql := helper.StringJoin("insert into ", dbName, " ("+strings.Join(insert_data, " , ")+")", " VALUES ", "("+strings.Join(value_data, " , ")+")", " RETURNING id")
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+		stmt, err = tx.Prepare(Sql)
+		if err != nil {
+			return 0, errors.New("创建失败：" + err.Error())
+		}
+		row := stmt.QueryRow(valuelist...)
+		var id int64
+		err = row.Scan(&id) // 扫描 RETURNING 返回的 ID
+		if err != nil {
+			return 0, errors.New("创建失败：" + err.Error())
+		}
+		return id, nil
+	} else {
 
-	sql := "insert into " + dbName + " set " + strings.Join(field, " , ")
-	stmt, err = tx.Prepare(sql)
+		sql := "insert into " + dbName + " set " + strings.Join(field, " , ")
+		stmt, err = tx.Prepare(sql)
 
-	if err != nil {
-		log.Println("insert prepare error:", sql, err)
-		return 0, errors.New("insert prepare error：" + err.Error())
-	}
-	result, err := stmt.Exec(valuelist...)
-	if err != nil {
-		log.Println("insert exec error：", sql, valuelist, err)
-		return 0, errors.New("insert exec error：" + err.Error())
+		if err != nil {
+			log.Println("insert prepare error:", sql, err)
+			return 0, errors.New("insert prepare error：" + err.Error())
+		}
+		result, err := stmt.Exec(valuelist...)
+		if err != nil {
+			log.Println("insert exec error：", sql, valuelist, err)
+			return 0, errors.New("insert exec error：" + err.Error())
+		}
+		insertId, _ := result.LastInsertId()
+		return insertId, nil
 	}
-	insertId, _ := result.LastInsertId()
-	return insertId, nil
 
 }
 
@@ -160,7 +198,12 @@ func TxUpdate(tx *sql.Tx, dbname, table string, data map[string]string, where ma
 		log.Println("ERROR", "update", dbName, "error, params empty")
 		return rowsAffected, errors.New("params empty")
 	}
-	result, err := tx.Exec("update "+dbName+" set "+strings.Join(keyList, " , ")+" where "+strings.Join(whereStr, " and "), valueList...)
+	var Sql string
+	Sql = "update " + dbName + " set " + strings.Join(keyList, " , ") + " where " + strings.Join(whereStr, " and ")
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+	}
+	result, err := tx.Exec(Sql, valueList...)
 
 	if err != nil {
 		log.Println("ERROR", "update", dbName, "error:", err)
@@ -198,7 +241,9 @@ func TxPreUpdate(tx *sql.Tx, dbname, table string, data []string, where []string
 	var stmt *sql.Stmt
 
 	sql := "update " + dbName + " set " + strings.Join(data, " , ") + " where " + strings.Join(where, " and ")
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = tx.Prepare(sql)
 
 	if err != nil {
@@ -260,7 +305,12 @@ func TxDelete(tx *sql.Tx, dbname, table string, where map[string]string, del_cou
 		limitStr = " limit " + del_count[0]
 
 	}
-	result, err := tx.Exec("delete from "+dbName+" where "+strings.Join(keyList, " and ")+limitStr, valueList...)
+	var Sql string
+	Sql = "delete from " + dbName + " where " + strings.Join(keyList, " and ") + limitStr
+	if DB_PROVIDER == "PgsqlDb" {
+		Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+	}
+	result, err := tx.Exec(Sql, valueList...)
 
 	if err != nil {
 		log.Println("ERROR", "delete from", dbName, "error:", err)
@@ -296,7 +346,12 @@ func TxForRead(tx *sql.Tx, dbName, table string, title string, where []string) (
 
 	if len(where) > 0 {
 		// log.Println("SELECT " + title + " FROM " + dbName + " where " + strings.Join(where, " and ") + " FOR UPDATE")
-		stmt, err = tx.Prepare("SELECT " + title + " FROM " + dbName + " where " + strings.Join(where, " and ") + " FOR UPDATE")
+		var Sql string
+		Sql = "SELECT " + title + " FROM " + dbName + " where " + strings.Join(where, " and ") + " FOR UPDATE"
+		if DB_PROVIDER == "PgsqlDb" {
+			Sql = sqlx.Rebind(sqlx.DOLLAR, Sql)
+		}
+		stmt, err = tx.Prepare(Sql)
 	} else {
 		// log.Println("SELECT " + title + " FROM " + dbName + " FOR UPDATE")
 		stmt, err = tx.Prepare("SELECT " + title + " FROM " + dbName + " FOR UPDATE")
diff --git a/transaction_chain.go b/transaction_chain.go
index cce1127..03b51ae 100644
--- a/transaction_chain.go
+++ b/transaction_chain.go
@@ -6,6 +6,7 @@ package dbquery
 import (
 	"database/sql"
 	"errors"
+	"github.com/jmoiron/sqlx"
 	"log"
 	"strconv"
 	"strings"
@@ -331,7 +332,12 @@ func (this *TxQuery) BuildSelectSql() (map[string]interface{}, error) {
 		from := strconv.Itoa((this.page - 1) * this.page_size)
 		offset := strconv.Itoa(this.page_size)
 		if from != "" && offset != "" {
-			sql = helper.StringJoin(sql, " limit ", from, " , ", offset)
+			if DB_PROVIDER == "PgsqlDb" {
+				sql = helper.StringJoin(sql, " limit ", offset, " OFFSET ", from)
+			} else {
+				sql = helper.StringJoin(sql, " limit ", from, " , ", offset)
+			}
+
 		}
 	}
 
@@ -348,6 +354,9 @@ func (this *TxQuery) BuildSelectSql() (map[string]interface{}, error) {
 	if condition_len != len(this.value) {
 		return nil, errors.New("参数错误，条件值错误")
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	return map[string]interface{}{
 		"sql":   sql,
 		"value": this.value,
@@ -365,7 +374,9 @@ func (this *TxQuery) GetTableInfo(table string) (map[string]interface{}, error)
 		"IS_NULLABLE",    //是否为空
 	}
 	sql := "select `" + strings.Join(field, "`,`") + "` from information_schema.COLUMNS where table_name = ? and table_schema = ?"
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmtSql, err := this.tx.Prepare(sql)
 	if err != nil {
 		return nil, err
@@ -471,7 +482,9 @@ func (this *TxQuery) UpdateStmt() error {
 	if condition_len != len(this.value) {
 		return errors.New("参数错误，条件值错误")
 	}
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = this.tx.Prepare(sql)
 
 	if err != nil {
@@ -574,6 +587,9 @@ func (this *TxQuery) UpdateAllStmt() error {
 	if len(valSql) > 1 {
 		setText = " value "
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		setText = " values "
+	}
 	sql = helper.StringJoin("insert into ", dbName, " (", strings.Join(this.data, " , "), ")", setText, strings.Join(valSql, ","), " ON DUPLICATE KEY UPDATE ", strings.Join(updSql, " , "))
 
 	if this.debug {
@@ -589,6 +605,9 @@ func (this *TxQuery) UpdateAllStmt() error {
 	if conditionLen != len(this.value) {
 		return errors.New("参数错误，条件值数量不匹配")
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = this.tx.Prepare(sql)
 
 	if err != nil {
@@ -610,8 +629,28 @@ func (this *TxQuery) CreateStmt() error {
 	dbName := getTableName(this.dbname, this.table)
 
 	var sql string
+	if DB_PROVIDER == "PgsqlDb" {
+		insert_data := []string{}
+		value_data := []string{}
+		for _, rv := range this.data {
+			dv := strings.Split(rv, "=")
+			if len(dv) < 2 {
+				return errors.New("参数错误，条件值错误,=号不存在")
+			}
+			if strings.Contains(rv, "?") {
+				insert_data = append(insert_data, dv[0])
+				value_data = append(value_data, "?")
+			} else {
+				insert_data = append(insert_data, dv[0])
+				value_data = append(value_data, dv[1])
+			}
 
-	sql = helper.StringJoin("insert into ", dbName, " set ", strings.Join(this.data, " , "))
+		}
+		sql = helper.StringJoin("insert into ", dbName, " ("+strings.Join(insert_data, " , ")+")", " VALUES ", "("+strings.Join(value_data, " , ")+")", " RETURNING id")
+	} else {
+		sql = helper.StringJoin("insert into ", dbName, " set ", strings.Join(this.data, " , "))
+	}
+	//sql = helper.StringJoin("insert into ", dbName, " set ", strings.Join(this.data, " , "))
 
 	if this.debug {
 		log.Println("insert sql:", sql, this.value)
@@ -627,7 +666,9 @@ func (this *TxQuery) CreateStmt() error {
 	if condition_len != len(this.value) {
 		return errors.New("参数错误，条件值错误")
 	}
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = this.tx.Prepare(sql)
 
 	if err != nil {
@@ -698,6 +739,9 @@ func (this *TxQuery) CreateAllStmt() error {
 	if len(valSql) > 1 {
 		setText = " value "
 	}
+	if DB_PROVIDER == "PgsqlDb" {
+		setText = " values "
+	}
 	sql = helper.StringJoin("insert into ", dbName, " (", strings.Join(this.data, " , "), ")", setText, strings.Join(valSql, ","))
 	if len(this.value) == 0 {
 		return errors.New("参数错误，条件值错误")
@@ -716,7 +760,10 @@ func (this *TxQuery) CreateAllStmt() error {
 	if conditionLen != len(this.value) {
 		return errors.New("参数错误，条件值数量不匹配")
 	}
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+		sql = helper.StringJoin(sql, " RETURNING id")
+	}
 	stmt, err = this.tx.Prepare(sql)
 
 	if err != nil {
@@ -762,7 +809,9 @@ func (this *TxQuery) DeleteStmt() error {
 	if condition_len != len(this.value) {
 		return errors.New("参数错误，条件值错误")
 	}
-
+	if DB_PROVIDER == "PgsqlDb" {
+		sql = sqlx.Rebind(sqlx.DOLLAR, sql)
+	}
 	stmt, err = this.tx.Prepare(sql)
 
 	if err != nil {