55a64ab8_PHP__Statistics___Manual_mysqlnd_statistics__Result_Set_Description
[Statistic] result_set_queries [Scope] Connection [Notes] You may use it as an indirect measure for the number of queries PHP has sent to MySQL, for example, to identify a client that causes a high database load. [Description] 
Number of queries that have generated a result set. Examples of queries that generate a result set: SELECT, SHOW. The statistic will not be incremented if there is an error reading the result set header packet from the line.
PHP: Statistics - Manual
Description