addSql(SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM `{?_MYSQL_PREFIX?}_user_holidays` WHERE `userid`=%s LIMIT 1",
array(bigintval($content['userid'])), __FUNCTION__, __LINE__, false));
addSql(SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM `{?_MYSQL_PREFIX?}_user_holidays` WHERE `userid`=%s LIMIT 1",
array(bigintval($content['userid'])), __FUNCTION__, __LINE__, false));