in dbconn/dbconn.go [142:153]
func (dbconn *DBConn) Close() {
if dbconn.ConnPool != nil {
for _, conn := range dbconn.ConnPool {
if conn != nil {
_ = conn.Close()
}
}
dbconn.ConnPool = nil
dbconn.Tx = nil
dbconn.NumConns = 0
}
}