SHOW TABLES FROM information_schema LIKE 'TRIGGERS';
Tables_in_information_schema (TRIGGERS)
TRIGGERS
#######################################################################
# Testcase 3.2.1.1: INFORMATION_SCHEMA tables can be queried via SELECT
#######################################################################
DROP VIEW      IF EXISTS test.v1;
DROP PROCEDURE IF EXISTS test.p1;
DROP FUNCTION  IF EXISTS test.f1;
CREATE VIEW test.v1 AS     SELECT * FROM information_schema.TRIGGERS;
CREATE PROCEDURE test.p1() SELECT * FROM information_schema.TRIGGERS;
CREATE FUNCTION test.f1() returns BIGINT
BEGIN
DECLARE counter BIGINT DEFAULT NULL;
SELECT COUNT(*) INTO counter FROM information_schema.TRIGGERS;
RETURN counter;
END//
# Attention: The printing of the next result sets is disabled.
SELECT * FROM information_schema.TRIGGERS;
SELECT * FROM test.v1;
CALL test.p1;
SELECT test.f1();
DROP VIEW test.v1;
DROP PROCEDURE test.p1;
DROP FUNCTION test.f1;
#########################################################################
# Testcase 3.2.12.1: INFORMATION_SCHEMA.TRIGGERS layout
#########################################################################
DESCRIBE          information_schema.TRIGGERS;
Field	Type	Null	Key	Default	Extra
TRIGGER_CATALOG	varchar(64)	YES		NULL	
TRIGGER_SCHEMA	varchar(64)	YES		NULL	
TRIGGER_NAME	varchar(64)	NO		NULL	
EVENT_MANIPULATION	enum('INSERT','UPDATE','DELETE')	NO		NULL	
EVENT_OBJECT_CATALOG	varchar(64)	YES		NULL	
EVENT_OBJECT_SCHEMA	varchar(64)	YES		NULL	
EVENT_OBJECT_TABLE	varchar(64)	YES		NULL	
ACTION_ORDER	int(10) unsigned	NO		NULL	
ACTION_CONDITION	binary(0)	YES		NULL	
ACTION_STATEMENT	longtext	NO		NULL	
ACTION_ORIENTATION	varchar(3)	NO			
ACTION_TIMING	enum('BEFORE','AFTER')	NO		NULL	
ACTION_REFERENCE_OLD_TABLE	binary(0)	YES		NULL	
ACTION_REFERENCE_NEW_TABLE	binary(0)	YES		NULL	
ACTION_REFERENCE_OLD_ROW	varchar(3)	NO			
ACTION_REFERENCE_NEW_ROW	varchar(3)	NO			
CREATED	timestamp(2)	NO		NULL	
SQL_MODE	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','NOT_USED_9','NOT_USED_10','NOT_USED_11','NOT_USED_12','NOT_USED_13','NOT_USED_14','NOT_USED_15','NOT_USED_16','NOT_USED_17','NOT_USED_18','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','ALLOW_INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NOT_USED_29','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','TIME_TRUNCATE_FRACTIONAL')	NO		NULL	
DEFINER	varchar(288)	NO		NULL	
CHARACTER_SET_CLIENT	varchar(64)	NO		NULL	
COLLATION_CONNECTION	varchar(64)	NO		NULL	
DATABASE_COLLATION	varchar(64)	NO		NULL	
SHOW CREATE TABLE information_schema.TRIGGERS;
View	Create View	character_set_client	collation_connection
TRIGGERS	CREATE ALGORITHM=UNDEFINED DEFINER=`mysql.infoschema`@`localhost` SQL SECURITY DEFINER VIEW `information_schema`.`TRIGGERS` AS select (`cat`.`name` collate utf8_tolower_ci) AS `TRIGGER_CATALOG`,(`sch`.`name` collate utf8_tolower_ci) AS `TRIGGER_SCHEMA`,`trg`.`name` AS `TRIGGER_NAME`,`trg`.`event_type` AS `EVENT_MANIPULATION`,(`cat`.`name` collate utf8_tolower_ci) AS `EVENT_OBJECT_CATALOG`,(`sch`.`name` collate utf8_tolower_ci) AS `EVENT_OBJECT_SCHEMA`,(`tbl`.`name` collate utf8_tolower_ci) AS `EVENT_OBJECT_TABLE`,`trg`.`action_order` AS `ACTION_ORDER`,NULL AS `ACTION_CONDITION`,`trg`.`action_statement_utf8` AS `ACTION_STATEMENT`,'ROW' AS `ACTION_ORIENTATION`,`trg`.`action_timing` AS `ACTION_TIMING`,NULL AS `ACTION_REFERENCE_OLD_TABLE`,NULL AS `ACTION_REFERENCE_NEW_TABLE`,'OLD' AS `ACTION_REFERENCE_OLD_ROW`,'NEW' AS `ACTION_REFERENCE_NEW_ROW`,`trg`.`created` AS `CREATED`,`trg`.`sql_mode` AS `SQL_MODE`,`trg`.`definer` AS `DEFINER`,`cs_client`.`name` AS `CHARACTER_SET_CLIENT`,`coll_conn`.`name` AS `COLLATION_CONNECTION`,`coll_db`.`name` AS `DATABASE_COLLATION` from (((((((`mysql`.`triggers` `trg` join `mysql`.`tables` `tbl` on((`tbl`.`id` = `trg`.`table_id`))) join `mysql`.`schemata` `sch` on((`tbl`.`schema_id` = `sch`.`id`))) join `mysql`.`catalogs` `cat` on((`cat`.`id` = `sch`.`catalog_id`))) join `mysql`.`collations` `coll_client` on((`coll_client`.`id` = `trg`.`client_collation_id`))) join `mysql`.`character_sets` `cs_client` on((`cs_client`.`id` = `coll_client`.`character_set_id`))) join `mysql`.`collations` `coll_conn` on((`coll_conn`.`id` = `trg`.`connection_collation_id`))) join `mysql`.`collations` `coll_db` on((`coll_db`.`id` = `trg`.`schema_collation_id`))) where ((`tbl`.`type` <> 'VIEW') and (0 <> can_access_trigger(`sch`.`name`,`tbl`.`name`)) and (0 <> is_visible_dd_object(`tbl`.`hidden`)))	utf8	utf8_general_ci
SHOW COLUMNS FROM information_schema.TRIGGERS;
Field	Type	Null	Key	Default	Extra
TRIGGER_CATALOG	varchar(64)	YES		NULL	
TRIGGER_SCHEMA	varchar(64)	YES		NULL	
TRIGGER_NAME	varchar(64)	NO		NULL	
EVENT_MANIPULATION	enum('INSERT','UPDATE','DELETE')	NO		NULL	
EVENT_OBJECT_CATALOG	varchar(64)	YES		NULL	
EVENT_OBJECT_SCHEMA	varchar(64)	YES		NULL	
EVENT_OBJECT_TABLE	varchar(64)	YES		NULL	
ACTION_ORDER	int(10) unsigned	NO		NULL	
ACTION_CONDITION	binary(0)	YES		NULL	
ACTION_STATEMENT	longtext	NO		NULL	
ACTION_ORIENTATION	varchar(3)	NO			
ACTION_TIMING	enum('BEFORE','AFTER')	NO		NULL	
ACTION_REFERENCE_OLD_TABLE	binary(0)	YES		NULL	
ACTION_REFERENCE_NEW_TABLE	binary(0)	YES		NULL	
ACTION_REFERENCE_OLD_ROW	varchar(3)	NO			
ACTION_REFERENCE_NEW_ROW	varchar(3)	NO			
CREATED	timestamp(2)	NO		NULL	
SQL_MODE	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','NOT_USED_9','NOT_USED_10','NOT_USED_11','NOT_USED_12','NOT_USED_13','NOT_USED_14','NOT_USED_15','NOT_USED_16','NOT_USED_17','NOT_USED_18','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','ALLOW_INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NOT_USED_29','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','TIME_TRUNCATE_FRACTIONAL')	NO		NULL	
DEFINER	varchar(288)	NO		NULL	
CHARACTER_SET_CLIENT	varchar(64)	NO		NULL	
COLLATION_CONNECTION	varchar(64)	NO		NULL	
DATABASE_COLLATION	varchar(64)	NO		NULL	
SELECT * FROM information_schema.triggers
WHERE trigger_catalog IS NOT NULL OR event_object_catalog IS NOT NULL
OR action_condition IS NOT NULL OR action_reference_old_table IS NOT NULL
OR action_reference_new_table IS NOT NULL
ORDER BY TRIGGER_CATALOG, TRIGGER_SCHEMA, TRIGGER_NAME;
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
def	mtr	gs_insert	INSERT	def	mtr	global_suppressions	1	NULL	BEGIN
  DECLARE dummy INT;
  SET GLOBAL regexp_time_limit = 0;
  SELECT "" REGEXP NEW.pattern INTO dummy;
  SET GLOBAL regexp_time_limit = DEFAULT;
END	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	root@localhost	latin1	latin1_swedish_ci	utf8mb4_0900_ai_ci
def	mtr	ts_insert	INSERT	def	mtr	test_suppressions	1	NULL	BEGIN
  DECLARE dummy INT;
  SET GLOBAL regexp_time_limit = 0;
  SELECT "" REGEXP NEW.pattern INTO dummy;
  SET GLOBAL regexp_time_limit = DEFAULT;
END	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	root@localhost	latin1	latin1_swedish_ci	utf8mb4_0900_ai_ci
def	sys	sys_config_insert_set_user	INSERT	def	sys	sys_config	1	NULL	BEGIN
    IF @sys.ignore_sys_config_triggers != true AND NEW.set_by IS NULL THEN
        SET NEW.set_by = USER();
    END IF;
END	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	mysql.sys@localhost	utf8mb4	utf8mb4_0900_ai_ci	utf8mb4_0900_ai_ci
def	sys	sys_config_update_set_user	UPDATE	def	sys	sys_config	1	NULL	BEGIN
    IF @sys.ignore_sys_config_triggers != true AND NEW.set_by IS NULL THEN
        SET NEW.set_by = USER();
    END IF;
END	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	mysql.sys@localhost	utf8mb4	utf8mb4_0900_ai_ci	utf8mb4_0900_ai_ci
##################################################################################
# Testcase 3.2.18.2 + 3.2.18.3: INFORMATION_SCHEMA.TRIGGERS accessible information
##################################################################################
DROP DATABASE IF EXISTS db_datadict;
CREATE DATABASE db_datadict charset latin1;
DROP   USER 'testuser1'@'localhost';
CREATE USER 'testuser1'@'localhost';
DROP   USER 'testuser2'@'localhost';
CREATE USER 'testuser2'@'localhost';
DROP   USER 'testuser3'@'localhost';
CREATE USER 'testuser3'@'localhost';
DROP   USER 'testuser4'@'localhost';
CREATE USER 'testuser4'@'localhost';
GRANT TRIGGER ON *.* TO 'testuser1'@'localhost';
GRANT TRIGGER ON *.* TO 'testuser3'@'localhost';
GRANT TRIGGER ON *.* TO 'testuser4'@'localhost';
GRANT ALL ON db_datadict.* TO 'testuser1'@'localhost' WITH GRANT OPTION;
# Establish connection testuser1 (user=testuser1)
CREATE TABLE db_datadict.t1 (f1 INT, f2 INT, f3 INT)
ENGINE = <engine_type>;
CREATE TRIGGER trg1 BEFORE INSERT
ON db_datadict.t1 FOR EACH ROW SET @test_before = 2, new.f1 = @test_before;
GRANT ALL ON db_datadict.t1 TO 'testuser2'@'localhost';
REVOKE TRIGGER ON db_datadict.t1 FROM 'testuser2'@'localhost';
GRANT SELECT ON db_datadict.t1 TO 'testuser3'@'localhost';
SELECT * FROM information_schema.triggers
WHERE trigger_name = 'trg1';
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
def	db_datadict	trg1	INSERT	def	db_datadict	t1	1	NULL	SET @test_before = 2, new.f1 = @test_before	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
SHOW TRIGGERS FROM db_datadict;
Trigger	Event	Table	Statement	Timing	Created	sql_mode	Definer	character_set_client	collation_connection	Database Collation
trg1	INSERT	t1	SET @test_before = 2, new.f1 = @test_before	BEFORE	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
# Establish connection testuser2 (user=testuser2)
SHOW GRANTS FOR 'testuser2'@'localhost';
Grants for testuser2@localhost
GRANT USAGE ON *.* TO `testuser2`@`localhost`
GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, REFERENCES, INDEX, ALTER, CREATE VIEW, SHOW VIEW ON `db_datadict`.`t1` TO `testuser2`@`localhost`
# No TRIGGER Privilege --> no result for query
SELECT * FROM information_schema.triggers
WHERE trigger_name = 'trg1';
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
SHOW TRIGGERS FROM db_datadict;
Trigger	Event	Table	Statement	Timing	Created	sql_mode	Definer	character_set_client	collation_connection	Database Collation
# Establish connection testuser3 (user=testuser3)
SHOW GRANTS FOR 'testuser3'@'localhost';
Grants for testuser3@localhost
GRANT TRIGGER ON *.* TO `testuser3`@`localhost`
GRANT SELECT ON `db_datadict`.`t1` TO `testuser3`@`localhost`
# TRIGGER Privilege + SELECT Privilege on t1 --> result for query
SELECT * FROM information_schema.triggers
WHERE trigger_name = 'trg1';
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
def	db_datadict	trg1	INSERT	def	db_datadict	t1	1	NULL	SET @test_before = 2, new.f1 = @test_before	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
SHOW TRIGGERS FROM db_datadict;
Trigger	Event	Table	Statement	Timing	Created	sql_mode	Definer	character_set_client	collation_connection	Database Collation
trg1	INSERT	t1	SET @test_before = 2, new.f1 = @test_before	BEFORE	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
# Establish connection testuser4 (user=testuser4)
SHOW GRANTS FOR 'testuser4'@'localhost';
Grants for testuser4@localhost
GRANT TRIGGER ON *.* TO `testuser4`@`localhost`
# TRIGGER Privilege + no SELECT Privilege on t1 --> result for query
SELECT * FROM db_datadict.t1;
ERROR 42000: SELECT command denied to user 'testuser4'@'localhost' for table 't1'
DESC db_datadict.t1;
ERROR 42000: SELECT command denied to user 'testuser4'@'localhost' for table 't1'
SELECT * FROM information_schema.triggers
WHERE trigger_name = 'trg1';
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
def	db_datadict	trg1	INSERT	def	db_datadict	t1	1	NULL	SET @test_before = 2, new.f1 = @test_before	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
SHOW TRIGGERS FROM db_datadict;
Trigger	Event	Table	Statement	Timing	Created	sql_mode	Definer	character_set_client	collation_connection	Database Collation
trg1	INSERT	t1	SET @test_before = 2, new.f1 = @test_before	BEFORE	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
# Switch to connection default and close connections testuser1 - testuser4
SELECT * FROM information_schema.triggers
WHERE trigger_name = 'trg1';
TRIGGER_CATALOG	TRIGGER_SCHEMA	TRIGGER_NAME	EVENT_MANIPULATION	EVENT_OBJECT_CATALOG	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_ORDER	ACTION_CONDITION	ACTION_STATEMENT	ACTION_ORIENTATION	ACTION_TIMING	ACTION_REFERENCE_OLD_TABLE	ACTION_REFERENCE_NEW_TABLE	ACTION_REFERENCE_OLD_ROW	ACTION_REFERENCE_NEW_ROW	CREATED	SQL_MODE	DEFINER	CHARACTER_SET_CLIENT	COLLATION_CONNECTION	DATABASE_COLLATION
def	db_datadict	trg1	INSERT	def	db_datadict	t1	1	NULL	SET @test_before = 2, new.f1 = @test_before	ROW	BEFORE	NULL	NULL	OLD	NEW	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
SHOW TRIGGERS FROM db_datadict;
Trigger	Event	Table	Statement	Timing	Created	sql_mode	Definer	character_set_client	collation_connection	Database Collation
trg1	INSERT	t1	SET @test_before = 2, new.f1 = @test_before	BEFORE	#	ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION	testuser1@localhost	utf8mb4	utf8mb4_0900_ai_ci	latin1_swedish_ci
DROP USER 'testuser1'@'localhost';
DROP USER 'testuser2'@'localhost';
DROP USER 'testuser3'@'localhost';
DROP USER 'testuser4'@'localhost';
DROP DATABASE db_datadict;
#########################################################################
# 3.2.1.13+3.2.1.14+3.2.1.15: INFORMATION_SCHEMA.TRIGGERS modifications
#########################################################################
########################################################################
# Testcases 3.2.1.3-3.2.1.5 + 3.2.1.8-3.2.1.12: INSERT/UPDATE/DELETE and
#           DDL on INFORMATION_SCHEMA tables are not supported
########################################################################
DROP DATABASE IF EXISTS db_datadict;
CREATE DATABASE db_datadict charset latin1;
CREATE TABLE db_datadict.t1 (f1 BIGINT)
ENGINE = <engine_type>;
CREATE TRIGGER db_datadict.trg1 BEFORE INSERT
ON db_datadict.t1 FOR EACH ROW SET @test_before = 2, new.f1 = @test_before;
INSERT INTO information_schema.triggers
SELECT * FROM information_schema.triggers;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
UPDATE information_schema.triggers SET trigger_schema = 'test'
WHERE table_name = 't1';
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
DELETE FROM information_schema.triggers WHERE trigger_name = 't1';
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
TRUNCATE information_schema.triggers;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
CREATE INDEX my_idx_on_triggers ON information_schema.triggers(trigger_schema);
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
ALTER TABLE information_schema.triggers DROP PRIMARY KEY;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
ALTER TABLE information_schema.triggers ADD f1 INT;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
DROP TABLE information_schema.triggers;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
ALTER TABLE information_schema.triggers RENAME db_datadict.triggers;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
ALTER TABLE information_schema.triggers RENAME information_schema.xtriggers;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
DROP DATABASE db_datadict;