diff --git a/db.go b/db.go
index 9e0aaf1..b04035e 100644
--- a/db.go
+++ b/db.go
@@ -467,7 +467,7 @@ 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" {
 			sql_str = sqlx.Rebind(sqlx.DOLLAR, sql_str)
-			sql_str = strings.Replace(sql_str, "`", `"`, -1)
+			sql_str = SqlReplace(sql_str, "")
 		}
 		rows, err = db.Query(sql_str, valueList...)
 
@@ -676,7 +676,7 @@ func FetchRows(dbName, table_name, alias string, titles string, with, join [][]s
 	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" {
 			sql_str = sqlx.Rebind(sqlx.DOLLAR, sql_str)
-			sql_str = strings.Replace(sql_str, "`", `"`, -1)
+			sql_str = SqlReplace(sql_str, "")
 		}
 		rows, err = db.Query(sql_str, valueList...)
 
@@ -1058,7 +1058,7 @@ func DoQuery(args ...interface{}) ([]map[string]string, error) {
 		if len(args) > 1 {
 			if DB_PROVIDER == "PgsqlDb" {
 				queryStr = sqlx.Rebind(sqlx.DOLLAR, queryStr)
-				queryStr = strings.Replace(queryStr, "`", `"`, -1)
+				queryStr = SqlReplace(queryStr, "")
 			}
 			rows, err = DB.Query(queryStr, args[1:]...) //strings.Join(args[1:], ",")
 			if err != nil {
diff --git a/prepare.go b/prepare.go
index d0160bf..ffd46ac 100644
--- a/prepare.go
+++ b/prepare.go
@@ -407,7 +407,7 @@ func StmtForQuery(querysql string) (*sql.Stmt, error) {
 	var err error
 	if DB_PROVIDER == "PgsqlDb" {
 		querysql = sqlx.Rebind(sqlx.DOLLAR, querysql)
-		querysql = strings.Replace(querysql, "`", `"`, -1)
+		querysql = SqlReplace(querysql, "")
 	}
 	stmt, err = DB.Prepare(querysql)