55a64ab8_PHP__Statistics___Manual_mysqlnd_statistics__Result_Set_Description
[Statistic] flushed_normal_sets [Scope] Connection [Notes] Unbuffered result sets must be fetched completely before a new query can be run on the connection otherwise MySQL will throw an error. If the application does not fetch all rows from an unbuffered result set, mysqlnd does implicitly fetch the result set to clear the line. See also rows_skipped_normal, rows_skipped_ps. Some possible causes for an implicit flush: Faulty client application Client stopped reading after it found what it was looking for but has made MySQL calculate more records than needed Client application has stopped unexpectedly [Description] 
Number of result sets from normal (non prepared statement) queries with unread data which have been flushed silently for you. Flushing happens only with unbuffered result sets.
PHP: Statistics - Manual
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