show databases;
Database
information_schema
mtr
mysql
performance_schema
sys
test
select count(*) from performance_schema.performance_timers;
count(*)
5
select count(*) from performance_schema.setup_consumers;
count(*)
15
select count(*) > 4 from performance_schema.setup_instruments;
count(*) > 4
1
select count(*) from performance_schema.setup_timers;
count(*)
5
Warnings:
Warning	1681	'performance_schema.setup_timers' is deprecated and will be removed in a future release.
select * from performance_schema.accounts;
select * from performance_schema.cond_instances;
select * from performance_schema.events_stages_current;
select * from performance_schema.events_stages_history;
select * from performance_schema.events_stages_history_long;
select * from performance_schema.events_stages_summary_by_account_by_event_name;
select * from performance_schema.events_stages_summary_by_host_by_event_name;
select * from performance_schema.events_stages_summary_by_thread_by_event_name;
select * from performance_schema.events_stages_summary_by_user_by_event_name;
select * from performance_schema.events_stages_summary_global_by_event_name;
select * from performance_schema.events_statements_current;
select * from performance_schema.events_statements_history;
select * from performance_schema.events_statements_history_long;
select * from performance_schema.events_statements_summary_by_account_by_event_name;
select * from performance_schema.events_statements_summary_by_digest;
select * from performance_schema.events_statements_summary_by_host_by_event_name;
select * from performance_schema.events_statements_summary_by_thread_by_event_name;
select * from performance_schema.events_statements_summary_by_user_by_event_name;
select * from performance_schema.events_statements_summary_global_by_event_name;
select * from performance_schema.events_transactions_current;
select * from performance_schema.events_transactions_history;
select * from performance_schema.events_transactions_history_long;
select * from performance_schema.events_transactions_summary_by_account_by_event_name;
select * from performance_schema.events_transactions_summary_by_host_by_event_name;
select * from performance_schema.events_transactions_summary_by_thread_by_event_name;
select * from performance_schema.events_transactions_summary_by_user_by_event_name;
select * from performance_schema.events_transactions_summary_global_by_event_name;
select * from performance_schema.events_waits_current;
select * from performance_schema.events_waits_history;
select * from performance_schema.events_waits_history_long;
select * from performance_schema.events_waits_summary_by_account_by_event_name;
select * from performance_schema.events_waits_summary_by_host_by_event_name;
select * from performance_schema.events_waits_summary_by_instance;
select * from performance_schema.events_waits_summary_by_thread_by_event_name;
select * from performance_schema.events_waits_summary_by_user_by_event_name;
select * from performance_schema.events_waits_summary_global_by_event_name;
select * from performance_schema.memory_summary_by_account_by_event_name;
select * from performance_schema.memory_summary_by_host_by_event_name;
select * from performance_schema.memory_summary_by_thread_by_event_name;
select * from performance_schema.memory_summary_by_user_by_event_name;
select * from performance_schema.memory_summary_global_by_event_name;
select * from performance_schema.file_instances;
select * from performance_schema.file_summary_by_event_name;
select * from performance_schema.file_summary_by_instance;
select * from performance_schema.host_cache;
select * from performance_schema.hosts;
select * from performance_schema.memory_summary_by_account_by_event_name;
select * from performance_schema.memory_summary_by_host_by_event_name;
select * from performance_schema.memory_summary_by_thread_by_event_name;
select * from performance_schema.memory_summary_by_user_by_event_name;
select * from performance_schema.memory_summary_global_by_event_name;
select * from performance_schema.metadata_locks;
select * from performance_schema.mutex_instances;
select * from performance_schema.objects_summary_global_by_type;
select * from performance_schema.performance_timers;
select * from performance_schema.rwlock_instances;
select * from performance_schema.session_account_connect_attrs;
select * from performance_schema.session_connect_attrs;
select * from performance_schema.setup_actors;
select * from performance_schema.setup_consumers;
select * from performance_schema.setup_instruments;
select * from performance_schema.setup_objects;
select * from performance_schema.setup_timers;
select * from performance_schema.socket_instances;
select * from performance_schema.socket_summary_by_instance;
select * from performance_schema.socket_summary_by_event_name;
select * from performance_schema.table_handles;
select * from performance_schema.table_io_waits_summary_by_index_usage;
select * from performance_schema.table_io_waits_summary_by_table;
select * from performance_schema.table_lock_waits_summary_by_table;
select * from performance_schema.threads;
select * from performance_schema.users;
select * from performance_schema.replication_connection_configuration;
select * from performance_schema.replication_connection_status;
select * from performance_schema.replication_applier_configuration;
select * from performance_schema.replication_applier_status;
select * from performance_schema.replication_applier_status_by_coordinator;
select * from performance_schema.replication_applier_status_by_worker;
select * from performance_schema.global_status;
select * from performance_schema.status_by_thread;
select * from performance_schema.status_by_user;
select * from performance_schema.status_by_host;
select * from performance_schema.status_by_account;
select * from performance_schema.session_status;
select * from performance_schema.global_variables;
select * from performance_schema.variables_by_thread;
select * from performance_schema.session_variables;
show global variables like "performance_schema%";
Variable_name	Value
performance_schema	ON
performance_schema_accounts_size	100
performance_schema_digests_size	200
performance_schema_events_stages_history_long_size	1000
performance_schema_events_stages_history_size	10
performance_schema_events_statements_history_long_size	1000
performance_schema_events_statements_history_size	10
performance_schema_events_transactions_history_long_size	1000
performance_schema_events_transactions_history_size	10
performance_schema_events_waits_history_long_size	10000
performance_schema_events_waits_history_size	10
performance_schema_hosts_size	100
performance_schema_max_cond_classes	80
performance_schema_max_cond_instances	-1
performance_schema_max_digest_length	1024
performance_schema_max_file_classes	80
performance_schema_max_file_handles	32768
performance_schema_max_file_instances	-1
performance_schema_max_index_stat	-1
performance_schema_max_memory_classes	320
performance_schema_max_metadata_locks	-1
performance_schema_max_mutex_classes	210
performance_schema_max_mutex_instances	-1
performance_schema_max_prepared_statements_instances	-1
performance_schema_max_program_instances	7
performance_schema_max_rwlock_classes	50
performance_schema_max_rwlock_instances	-1
performance_schema_max_socket_classes	10
performance_schema_max_socket_instances	-1
performance_schema_max_sql_text_length	1024
performance_schema_max_stage_classes	150
performance_schema_max_statement_classes	193
performance_schema_max_statement_stack	2
performance_schema_max_table_handles	-1
performance_schema_max_table_instances	-1
performance_schema_max_table_lock_stat	-1
performance_schema_max_thread_classes	50
performance_schema_max_thread_instances	-1
performance_schema_session_connect_attrs_size	2048
performance_schema_setup_actors_size	100
performance_schema_setup_objects_size	100
performance_schema_show_processlist	OFF
performance_schema_users_size	100
show engine PERFORMANCE_SCHEMA status;
show global status like "performance_schema%";
show global variables like "performance_schema_max_program_instances";
Variable_name	Value
performance_schema_max_program_instances	7
show global variables like "performance_schema_max_statement_stack";
Variable_name	Value
performance_schema_max_statement_stack	2
##################### 
# Setup
##################### 
# SET-UP
CREATE DATABASE nested_sp;
USE nested_sp;
CREATE TABLE t1(
id   CHAR(16) NOT NULL DEFAULT '',
data INT NOT NULL
);
CREATE TABLE t2(
n INT UNSIGNED NOT NULL, 
f BIGINT UNSIGNED
);
############################
# Creating Stored Programs #
############################
CREATE PROCEDURE c1(x INT)
CALL c2("c", x)|
CREATE PROCEDURE c2(s CHAR(16), x INT)
CALL c3(x, s)|
CREATE PROCEDURE c3(x INT, s CHAR(16))
CALL c4("level", x, s)|
CREATE PROCEDURE c4(l CHAR(8), x INT, s CHAR(16))
INSERT INTO t1 VALUES (concat(l,s), x)|
CREATE PROCEDURE iotest(x1 CHAR(16), x2 CHAR(16), y INT)
BEGIN
CALL inc2(x2, y);
INSERT INTO t1 VALUES (x1, y);
END|
CREATE PROCEDURE inc2(x CHAR(16), y INT)
BEGIN
CALL inc(y);
INSERT INTO t1 VALUES (x, y);
END|
CREATE PROCEDURE inc(inout io INT)
SET io = io + 1|
CREATE FUNCTION mul(x INT, y INT) RETURNS INT
RETURN x*y|
CREATE FUNCTION inc(i INT) RETURNS INT
RETURN i+1|
CREATE FUNCTION fac(n INT UNSIGNED) RETURNS BIGINT UNSIGNED
BEGIN
DECLARE f BIGINT UNSIGNED DEFAULT 1;
WHILE n > 1 DO
SET f = f * n;
SET n = n - 1;
END WHILE;
RETURN f;
END|
CREATE FUNCTION fun(i INT, u INT UNSIGNED) RETURNS DOUBLE
RETURN mul(inc(i), fac(u))|
CREATE PROCEDURE ifac(n INT UNSIGNED)
BEGIN
DECLARE i BIGINT UNSIGNED DEFAULT 1;
IF n > 20 THEN
SET n = 20;         # bigint overflow otherwise
END IF;
WHILE i <= n DO
BEGIN
INSERT INTO t2 VALUES (i, fac(i));
SET i = i + 1;
END;
END WHILE;
END|
CREATE TRIGGER trg AFTER INSERT ON t1 FOR EACH ROW
CALL ifac(10)|
TRUNCATE performance_schema.events_statements_summary_by_program;
SELECT OBJECT_TYPE, OBJECT_NAME, OBJECT_SCHEMA FROM 
performance_schema.events_statements_summary_by_program 
WHERE OBJECT_SCHEMA='nested_sp' ORDER BY OBJECT_NAME;
OBJECT_TYPE	OBJECT_NAME	OBJECT_SCHEMA
Flush status;
show global status like "%performance_schema_program_lost%";
Variable_name	Value
Performance_schema_program_lost	0
show global status like "%performance_schema_nested_statement_lost%";
Variable_name	Value
Performance_schema_nested_statement_lost	0
##################### 
# Executing Queries
##################### 
#####################
# Executing queries #
#####################
CALL c1(42);
SELECT * FROM t1;
id	data
levelc	42
DELETE FROM t1;
CALL iotest("io1", "io2", 1);
SELECT * FROM t1 ORDER BY data DESC;
id	data
io2	2
io1	1
DELETE FROM t1;
SELECT fun(6,10);
fun(6,10)
25401600
INSERT INTO t1 VALUES (20,13);
SELECT * FROM t2;
n	f
1	1
2	2
3	6
4	24
5	120
6	720
7	5040
8	40320
9	362880
10	3628800
1	1
2	2
3	6
4	24
5	120
6	720
7	5040
8	40320
9	362880
10	3628800
1	1
2	2
3	6
4	24
5	120
6	720
7	5040
8	40320
9	362880
10	3628800
1	1
2	2
3	6
4	24
5	120
6	720
7	5040
8	40320
9	362880
10	3628800
###########################################
# Quering PS statement summary table      #
########################################### 
SELECT OBJECT_TYPE, OBJECT_NAME, OBJECT_SCHEMA
FROM performance_schema.events_statements_summary_by_program
WHERE OBJECT_SCHEMA='nested_sp' ORDER BY OBJECT_NAME;
OBJECT_TYPE	OBJECT_NAME	OBJECT_SCHEMA
PROCEDURE	c1	nested_sp
PROCEDURE	c2	nested_sp
PROCEDURE	c3	nested_sp
PROCEDURE	c4	nested_sp
FUNCTION	fac	nested_sp
PROCEDURE	ifac	nested_sp
TRIGGER	trg	nested_sp
show global status like "%performance_schema_program_lost%";
Variable_name	Value
Performance_schema_program_lost	6
show global status like "%performance_schema_nested_statement_lost%";
Variable_name	Value
Performance_schema_nested_statement_lost	1062
##################### 
# Cleanup
##################### 
DROP PROCEDURE c4;
DROP PROCEDURE c3;
DROP PROCEDURE c2;
DROP PROCEDURE c1;
DROP PROCEDURE inc;
DROP PROCEDURE inc2;
DROP PROCEDURE iotest;
DROP FUNCTION mul;
DROP FUNCTION inc;
DROP FUNCTION fac;
DROP FUNCTION fun;
DROP PROCEDURE ifac;
DROP TRIGGER trg;
DROP TABLE t1,t2;
DROP DATABASE nested_sp;