fix

pool.go

@@ -96,9 +96,6 @@ func (d *Pool) NewConn(mode connMode, pgConnString string) error {
 }
 
 func (d *Pool) NewConns(mode connMode, pgConnString ...string) error {
-	d.mu.Lock()
-	defer d.mu.Unlock()
-
 	for _, s := range pgConnString {
 		if err := d.NewConn(mode, s); err != nil {
 			return err