diff --git a/VERSION b/VERSION
index 62af1c7f..bff78cca 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-xorm v0.4.3.0806
+xorm v0.4.3.0812
diff --git a/examples/goroutine.go b/examples/goroutine.go
index b18fe4f8..f99c9fbe 100644
--- a/examples/goroutine.go
+++ b/examples/goroutine.go
@@ -33,7 +33,7 @@ func test(engine *xorm.Engine) {
 		return
 	}
 
-	size := 500
+	size := 100
 	queue := make(chan int, size)
 
 	for i := 0; i < size; i++ {
@@ -83,7 +83,7 @@ func test(engine *xorm.Engine) {
 }
 
 func main() {
-	runtime.GOMAXPROCS(1)
+	runtime.GOMAXPROCS(2)
 	fmt.Println("-----start sqlite go routines-----")
 	engine, err := sqliteEngine()
 	if err != nil {
diff --git a/statement.go b/statement.go
index c3e93eed..f4d0bcf5 100644
--- a/statement.go
+++ b/statement.go
@@ -818,6 +818,7 @@ func (statement *Statement) Cols(columns ...string) *Statement {
 	if strings.Contains(statement.ColumnStr, ".") {
 		statement.ColumnStr = strings.Replace(statement.ColumnStr, ".", statement.Engine.Quote("."), -1)
 	}
+	statement.ColumnStr = strings.Replace(statement.ColumnStr, statement.Engine.Quote("*"), "*", -1)
 	return statement
 }
 
diff --git a/xorm.go b/xorm.go
index 341160c5..df4f3c18 100644
--- a/xorm.go
+++ b/xorm.go
@@ -17,7 +17,7 @@ import (
 )
 
 const (
-	Version string = "0.4.3.0806"
+	Version string = "0.4.3.0812"
 )
 
 func regDrvsNDialects() bool {