SELECT `performance_schema` . `table_io_waits_summary_by_index_usage` . `OBJECT_SCHEMA` AS `object_schema` , `performance_schema` . `table_io_waits_summary_by_index_usage` . `OBJECT_NAME` AS `object_name` , `performance_schema` . `table_io_waits_summary_by_index_usage` . `COUNT_READ` AS `rows_full_scanned` , `performance_schema` . `table_io_waits_summary_by_index_usage` . `SUM_TIMER_WAIT` AS `latency` FROM `performance_schema` . `table_io_waits_summary_by_index_usage` WHERE ( `isnull` ( `performance_schema` . `table_io_waits_summary_by_index_usage` . `INDEX_NAME` ) AND ( `performance_schema` . `table_io_waits_summary_by_index_usage` . `COUNT_READ` > ? ) ) ORDER BY `performance_schema` . `table_io_waits_summary_by_index_usage` . `COUNT_READ` DESC 