SET sql_mode='NO_ENGINE_SUBSTITUTION'; #################################### # SETUP #################################### CREATE DATABASE statements_digest; USE statements_digest; CREATE TABLE t1(a int); CREATE TABLE t2(a int); CREATE TABLE t3(a int, b int); CREATE TABLE t4(a int, b int); CREATE TABLE t5(a int, b int, c int); CREATE TABLE t6(a int, b int, c int, d int); CREATE TABLE t11 (c CHAR(4)); CREATE TABLE t12 (c CHAR(4)); TRUNCATE TABLE performance_schema.events_statements_summary_by_digest; #################################### # EXECUTION #################################### SELECT 1 FROM t1; 1 SELECT 1 FROM `t1`; 1 SELECT 1,2 FROM t1; 1 2 SELECT 1, 2, 3, 4 FROM t1; 1 2 3 4 SELECT 1 FROM t2; 1 SELECT 1,2 FROM t2; 1 2 SELECT 1, 2, 3, 4 FROM t2; 1 2 3 4 INSERT INTO t1 VALUES (1); INSERT INTO t2 VALUES (1); INSERT INTO t3 VALUES (1, 2); INSERT INTO t4 VALUES (1, 2); INSERT INTO t5 VALUES (1, 2, 3); INSERT INTO t1 VALUES (1), (2), (3); INSERT INTO t1 VALUES (1), (2), (3), (4); INSERT INTO t3 VALUES (1, 2), (3, 4), (5, 6); INSERT INTO t5 VALUES (1, 2, 3), (4, 5, 6), (7, 8, 9); INSERT INTO t1 VALUES (NULL); INSERT INTO t3 VALUES (NULL,NULL); INSERT INTO t3 VALUES (1,NULL); INSERT INTO t3 VALUES (NULL,1); INSERT INTO t6 VALUES (NULL, NULL, NULL, NULL); INSERT INTO t6 VALUES (1, NULL, NULL, NULL); INSERT INTO t6 VALUES (NULL, 2, NULL, NULL); INSERT INTO t6 VALUES (1, 2, 3, NULL); INSERT INTO t6 VALUES (1, 2, NULL, 4); SELECT 1 + 1; 1 + 1 2 SELECT 1; 1 1 SELECT 1 /* This is an inline comment */ + 1; 1 /* This is an inline comment */ + 1 2 SELECT 1+ /* this is a multiple-line comment */ 1; 1+ /* this is a multiple-line comment */ 1 2 CREATE SCHEMA statements_digest_temp; DROP SCHEMA statements_digest_temp; CREATE DATABASE statements_digest_temp; DROP DATABASE statements_digest_temp; SELECT 1 FROM no_such_table; ERROR 42S02: Table 'statements_digest.no_such_table' doesn't exist CREATE TABLE dup_table (c char(4)); CREATE TABLE dup_table (c char(4)); ERROR 42S01: Table 'dup_table' already exists DROP TABLE dup_table; INSERT IGNORE INTO t11 VALUES("MySQL"); Warnings: Warning 1265 Data truncated for column 'c' at row 1 PREPARE stmt FROM "SELECT * FROM t12"; EXECUTE stmt; c EXECUTE stmt; c DEALLOCATE PREPARE stmt; CREATE PROCEDURE p1() BEGIN SELECT * FROM t12; END// CALL p1(); c CALL p1(); c DROP PROCEDURE p1; CREATE FUNCTION `func`(a INT, b INT) RETURNS int(11) RETURN a+b // select func(3,4); func(3,4) 7 select func(13,42); func(13,42) 55 DROP FUNCTION func; CREATE TRIGGER trg BEFORE INSERT ON t12 FOR EACH ROW SET @a:=1; INSERT INTO t12 VALUES ("abc"); INSERT INTO t12 VALUES ("def"); DROP TRIGGER trg; #################################### # QUERYING PS STATEMENT DIGEST #################################### SELECT SCHEMA_NAME, DIGEST_TEXT, COUNT_STAR, SUM_ROWS_AFFECTED, SUM_WARNINGS, SUM_ERRORS FROM performance_schema.events_statements_summary_by_digest; SCHEMA_NAME DIGEST_TEXT COUNT_STAR SUM_ROWS_AFFECTED SUM_WARNINGS SUM_ERRORS statements_digest TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 0 0 0 statements_digest SELECT ? FROM `t1` 2 0 0 0 statements_digest SELECT ?, ... FROM `t1` 2 0 0 0 statements_digest SELECT ? FROM `t2` 1 0 0 0 statements_digest SELECT ?, ... FROM `t2` 2 0 0 0 statements_digest INSERT INTO `t1` VALUES (?) 2 2 0 0 statements_digest INSERT INTO `t2` VALUES (?) 1 1 0 0 statements_digest INSERT INTO `t3` VALUES (...) 4 4 0 0 statements_digest INSERT INTO `t4` VALUES (...) 1 1 0 0 statements_digest INSERT INTO `t5` VALUES (...) 1 1 0 0 statements_digest INSERT INTO `t1` VALUES (?) /* , ... */ 2 7 0 0 statements_digest INSERT INTO `t3` VALUES (...) /* , ... */ 1 3 0 0 statements_digest INSERT INTO `t5` VALUES (...) /* , ... */ 1 3 0 0 statements_digest INSERT INTO `t6` VALUES (...) 5 5 0 0 statements_digest SELECT ? + ? 3 0 0 0 statements_digest SELECT ? 1 0 0 0 statements_digest CREATE SCHEMA `statements_digest_temp` 2 2 0 0 statements_digest DROP SCHEMA `statements_digest_temp` 2 0 0 0 statements_digest SELECT ? FROM `no_such_table` 1 0 0 1 statements_digest CREATE TABLE `dup_table` ( `c` CHARACTER (?) ) 2 0 0 1 statements_digest DROP TABLE `dup_table` 1 0 0 0 statements_digest INSERT IGNORE INTO `t11` VALUES (?) 1 1 1 0 statements_digest SHOW WARNINGS 1 0 0 0 statements_digest PREPARE `stmt` FROM ? 1 0 0 0 statements_digest EXECUTE `stmt` 2 0 0 0 statements_digest DEALLOCATE PREPARE `stmt` 1 0 0 0 statements_digest CREATE PROCEDURE `p1` ( ) BEGIN SELECT * FROM `t12` ; END 1 0 0 0 statements_digest CALL `p1` ( ) 2 0 0 0 statements_digest DROP PROCEDURE `p1` 1 0 0 0 statements_digest CREATE FUNCTION `func` ( `a` INTEGER , `b` INTEGER ) RETURNS INTEGER (?) RETURN `a` + `b` 1 0 0 0 statements_digest SELECT `func` (...) 2 0 0 0 statements_digest DROP FUNCTION `func` 1 0 0 0 statements_digest CREATE TRIGGER `trg` BEFORE INSERT ON `t12` FOR EACH ROW SET @? := ? 1 0 0 0 statements_digest INSERT INTO `t12` VALUES (?) 2 2 0 0 statements_digest DROP TRIGGER `trg` 1 0 0 0 #################################### # CLEANUP #################################### DROP TABLE IF EXISTS t1; DROP TABLE IF EXISTS t2; DROP TABLE IF EXISTS t3; DROP TABLE IF EXISTS t4; DROP TABLE IF EXISTS t5; DROP TABLE IF EXISTS t6; DROP TABLE IF EXISTS t11; DROP TABLE IF EXISTS t12; DROP DATABASE IF EXISTS statements_digest; SET sql_mode=default;