DESC sys.statements_with_full_table_scans; Field Type Null Key Default Extra query longtext YES NULL db varchar(64) YES NULL exec_count bigint(20) unsigned NO NULL total_latency varchar(12) YES NULL no_index_used_count bigint(20) unsigned NO NULL no_good_index_used_count bigint(20) unsigned NO NULL no_index_used_pct decimal(24,0) NO 0 rows_sent bigint(20) unsigned NO NULL rows_examined bigint(20) unsigned NO NULL rows_sent_avg decimal(21,0) unsigned YES NULL rows_examined_avg decimal(21,0) unsigned YES NULL first_seen timestamp NO 0000-00-00 00:00:00 last_seen timestamp NO 0000-00-00 00:00:00 digest varchar(32) YES NULL SELECT * FROM sys.statements_with_full_table_scans; DESC sys.x$statements_with_full_table_scans; Field Type Null Key Default Extra query longtext YES NULL db varchar(64) YES NULL exec_count bigint(20) unsigned NO NULL total_latency bigint(20) unsigned NO NULL no_index_used_count bigint(20) unsigned NO NULL no_good_index_used_count bigint(20) unsigned NO NULL no_index_used_pct decimal(24,0) NO 0 rows_sent bigint(20) unsigned NO NULL rows_examined bigint(20) unsigned NO NULL rows_sent_avg decimal(21,0) unsigned YES NULL rows_examined_avg decimal(21,0) unsigned YES NULL first_seen timestamp NO 0000-00-00 00:00:00 last_seen timestamp NO 0000-00-00 00:00:00 digest varchar(32) YES NULL SELECT * FROM sys.x$statements_with_full_table_scans; CREATE DATABASE v_statements_with_full_table_scans; CREATE TABLE v_statements_with_full_table_scans.t (i BIGINT AUTO_INCREMENT PRIMARY KEY, j BIGINT) ENGINE = innodb; INSERT INTO v_statements_with_full_table_scans.t (j) VALUES (1), (2), (3); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); INSERT INTO v_statements_with_full_table_scans.t (j) (SELECT j*2 FROM v_statements_with_full_table_scans.t); CALL sys.ps_truncate_all_tables(false); summary Truncated 44 tables SELECT i, j, RAND() FROM v_statements_with_full_table_scans.t WHERE j = 12; SELECT db, query, rows_examined FROM sys.statements_with_full_table_scans WHERE query LIKE '%v_statements_with_full_table_scans%' ORDER BY rows_examined DESC; db query rows_examined SELECT db, query, rows_examined FROM sys.x$statements_with_full_table_scans WHERE query LIKE '%v_statements_with_full_table_scans%' ORDER BY rows_examined DESC; db query rows_examined test SELECT `i` , `j` , `RAND` ( ) FROM `v_statements_with_full_table_scans` . `t` WHERE `j` = ? 768 SELECT i, j, RAND() FROM v_statements_with_full_table_scans.t WHERE j = 12; SELECT db, query, rows_examined FROM sys.statements_with_full_table_scans WHERE query LIKE '%v_statements_with_full_table_scans%' ORDER BY rows_examined DESC; db query rows_examined SELECT db, query, rows_examined FROM sys.x$statements_with_full_table_scans WHERE query LIKE '%v_statements_with_full_table_scans%' ORDER BY rows_examined DESC; db query rows_examined test SELECT `i` , `j` , `RAND` ( ) FROM `v_statements_with_full_table_scans` . `t` WHERE `j` = ? 1536 SELECT * FROM v_statements_with_full_table_scans.t WHERE i = 10; i j 10 4 SELECT db, query, rows_examined FROM sys.statements_with_full_table_scans WHERE query LIKE '%v_statements_with_full_table_scans%' ORDER BY rows_examined DESC; db query rows_examined SELECT db, query, rows_examined FROM sys.x$statements_with_full_table_scans WHERE query LIKE '%v_statements_with_full_table_scans%' ORDER BY rows_examined DESC; db query rows_examined test SELECT `i` , `j` , `RAND` ( ) FROM `v_statements_with_full_table_scans` . `t` WHERE `j` = ? 1536 DROP DATABASE v_statements_with_full_table_scans;