sys Schema Views The total number of occurrences of the stage event for the user. The total wait time of timed occurrences of the stage event for the user. The average wait time per timed occurrence of the stage event for the user. These views summarize overall statement statistics, grouped by user. By default, rows are sorted by descending total latency. The  user_summary_by_statement_latency  and  x$user_summary_by_statement_latency views have these columns: The client user name. Rows for which the  USER  column in the underlying Performance Schema table is NULL  are assumed to be for background threads and are reported with a host name of  background . The total number of statements for the user. The total wait time of timed statements for the user. The maximum single wait time of timed statements for the user. The total time waiting for locks by timed statements for the user. The total number of rows returned by statements for the user. The total number of rows read from storage engines by statements for the user. The total number of rows affected by statements for the user. The total number of full table scans by statements for the user. 28.4.3.46 The user_summary_by_statement_type and x$user_summary_by_statement_type Views 5178 • full_scans • rows_affected • rows_examined • rows_sent • lock_latency • max_latency • total_latency • total • user • avg_latency • total_latency 28.4.3.45 The user_summary_by_statement_latency and x $user_summary_by_statement_latency Views