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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(512) YES NULL TRIGGER_SCHEMA varchar(64) NO TRIGGER_NAME varchar(64) NO EVENT_MANIPULATION varchar(6) NO EVENT_OBJECT_CATALOG varchar(512) YES NULL EVENT_OBJECT_SCHEMA varchar(64) NO EVENT_OBJECT_TABLE varchar(64) NO ACTION_ORDER bigint(4) NO 0 ACTION_CONDITION longtext YES NULL ACTION_STATEMENT longtext NO NULL ACTION_ORIENTATION varchar(9) NO ACTION_TIMING varchar(6) NO ACTION_REFERENCE_OLD_TABLE varchar(64) YES NULL ACTION_REFERENCE_NEW_TABLE varchar(64) YES NULL ACTION_REFERENCE_OLD_ROW varchar(3) NO ACTION_REFERENCE_NEW_ROW varchar(3) NO CREATED datetime YES NULL SQL_MODE longtext NO NULL DEFINER longtext NO NULL SHOW CREATE TABLE information_schema.TRIGGERS; Table Create Table TRIGGERS CREATE TEMPORARY TABLE `TRIGGERS` ( `TRIGGER_CATALOG` varchar(512) default NULL, `TRIGGER_SCHEMA` varchar(64) NOT NULL default '', `TRIGGER_NAME` varchar(64) NOT NULL default '', `EVENT_MANIPULATION` varchar(6) NOT NULL default '', `EVENT_OBJECT_CATALOG` varchar(512) default NULL, `EVENT_OBJECT_SCHEMA` varchar(64) NOT NULL default '', `EVENT_OBJECT_TABLE` varchar(64) NOT NULL default '', `ACTION_ORDER` bigint(4) NOT NULL default '0', `ACTION_CONDITION` longtext, `ACTION_STATEMENT` longtext NOT NULL, `ACTION_ORIENTATION` varchar(9) NOT NULL default '', `ACTION_TIMING` varchar(6) NOT NULL default '', `ACTION_REFERENCE_OLD_TABLE` varchar(64) default NULL, `ACTION_REFERENCE_NEW_TABLE` varchar(64) default NULL, `ACTION_REFERENCE_OLD_ROW` varchar(3) NOT NULL default '', `ACTION_REFERENCE_NEW_ROW` varchar(3) NOT NULL default '', `CREATED` datetime default NULL, `SQL_MODE` longtext NOT NULL, `DEFINER` longtext NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=utf8 SHOW COLUMNS FROM information_schema.TRIGGERS; Field Type Null Key Default Extra TRIGGER_CATALOG varchar(512) YES NULL TRIGGER_SCHEMA varchar(64) NO TRIGGER_NAME varchar(64) NO EVENT_MANIPULATION varchar(6) NO EVENT_OBJECT_CATALOG varchar(512) YES NULL EVENT_OBJECT_SCHEMA varchar(64) NO EVENT_OBJECT_TABLE varchar(64) NO ACTION_ORDER bigint(4) NO 0 ACTION_CONDITION longtext YES NULL ACTION_STATEMENT longtext NO NULL ACTION_ORIENTATION varchar(9) NO ACTION_TIMING varchar(6) NO ACTION_REFERENCE_OLD_TABLE varchar(64) YES NULL ACTION_REFERENCE_NEW_TABLE varchar(64) YES NULL ACTION_REFERENCE_OLD_ROW varchar(3) NO ACTION_REFERENCE_NEW_ROW varchar(3) NO CREATED datetime YES NULL SQL_MODE longtext NO NULL DEFINER longtext 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; 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 ################################################################################## # Testcase 3.2.18.2 + 3.2.18.3: INFORMATION_SCHEMA.TRIGGERS accessible information ################################################################################## DROP DATABASE IF EXISTS db_datadict; CREATE DATABASE db_datadict; 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 SUPER ON *.* TO 'testuser1'@'localhost'; GRANT SUPER ON *.* TO 'testuser3'@'localhost'; GRANT SUPER 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'; 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 NULL db_datadict trg1 INSERT NULL db_datadict t1 0 NULL SET @test_before = 2, new.f1 = @test_before ROW BEFORE NULL NULL OLD NEW NULL testuser1@localhost SHOW TRIGGERS FROM db_datadict; Trigger Event Table Statement Timing Created sql_mode Definer trg1 INSERT t1 SET @test_before = 2, new.f1 = @test_before BEFORE NULL testuser1@localhost # Establish connection testuser2 (user=testuser2) SHOW GRANTS FOR 'testuser2'@'localhost'; # No SUPER 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 NULL db_datadict trg1 INSERT NULL db_datadict t1 0 NULL SET @test_before = 2, new.f1 = @test_before ROW BEFORE NULL NULL OLD NEW NULL testuser1@localhost SHOW TRIGGERS FROM db_datadict; Trigger Event Table Statement Timing Created sql_mode Definer trg1 INSERT t1 SET @test_before = 2, new.f1 = @test_before BEFORE NULL testuser1@localhost # Establish connection testuser3 (user=testuser3) SHOW GRANTS FOR 'testuser3'@'localhost'; # SUPER 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 NULL db_datadict trg1 INSERT NULL db_datadict t1 0 NULL SET @test_before = 2, new.f1 = @test_before ROW BEFORE NULL NULL OLD NEW NULL testuser1@localhost SHOW TRIGGERS FROM db_datadict; Trigger Event Table Statement Timing Created sql_mode Definer trg1 INSERT t1 SET @test_before = 2, new.f1 = @test_before BEFORE NULL testuser1@localhost # Establish connection testuser4 (user=testuser4) SHOW GRANTS FOR 'testuser4'@'localhost'; # SUPER Privilege + no SELECT Privilege on t1 --> 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 NULL db_datadict trg1 INSERT NULL db_datadict t1 0 NULL SET @test_before = 2, new.f1 = @test_before ROW BEFORE NULL NULL OLD NEW NULL testuser1@localhost SHOW TRIGGERS FROM db_datadict; Trigger Event Table Statement Timing Created sql_mode Definer trg1 INSERT t1 SET @test_before = 2, new.f1 = @test_before BEFORE NULL testuser1@localhost # 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 NULL db_datadict trg1 INSERT NULL db_datadict t1 0 NULL SET @test_before = 2, new.f1 = @test_before ROW BEFORE NULL NULL OLD NEW NULL testuser1@localhost SHOW TRIGGERS FROM db_datadict; Trigger Event Table Statement Timing Created sql_mode Definer trg1 INSERT t1 SET @test_before = 2, new.f1 = @test_before BEFORE NULL testuser1@localhost 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; 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;