#################################### # 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)); SELECT * FROM performance_schema.setup_consumers; NAME ENABLED events_stages_current YES events_stages_history YES events_stages_history_long YES events_statements_current YES events_statements_history YES events_statements_history_long YES events_transactions_current YES events_transactions_history YES events_transactions_history_long YES events_waits_current YES events_waits_history YES events_waits_history_long YES global_instrumentation YES thread_instrumentation YES statements_digest NO 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, digest_text, count_star FROM performance_schema.events_statements_summary_by_digest; schema_name digest digest_text count_star SELECT digest, digest_text FROM performance_schema.events_statements_current; digest digest_text NULL NULL #################################### # 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;