# # WL#6631: Detect transaction boundaries # ######################################################################## # # set up: save settings # SET autocommit=1; # if we track CHARACTERISTICS, we must also track the tx_* sysvars! SELECT @@session.session_track_system_variables INTO @old_track_list; SET @track_list= CONCAT(@old_track_list, ",transaction_isolation, transaction_read_only"); SET SESSION session_track_system_variables=@track_list; SELECT @@session.session_track_state_change INTO @old_track_enable; SET SESSION session_track_state_change=TRUE; SELECT @@session.session_track_transaction_info INTO @old_track_tx; FLUSH STATUS; ######################################################################## # # test "STATE" tracking: transaction type transitions # SET SESSION session_track_transaction_info="STATE"; # 3.1.1.1.1 "explicit transaction active" START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ # 3.1.1.1.1 ending explicit transaction explicitly COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # 3.1.1.1.1 ending explicit transaction implicitly CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ DROP TABLE t1; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # 3.1.1.2 "no work attached" START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ SET @dummy=0; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # 3.1.1.1.2 "implicit transaction active" # SET autocommit=0; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- autocommit -- OFF -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; INSERT INTO t1 VALUES (1); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I___W___ SELECT f1 FROM t1 LIMIT 1 INTO @dummy; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I_R_Ws__ SELECT f1 FROM t1; f1 1 -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I_R_WsS_ BEGIN WORK; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ DROP TABLE t1; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ SELECT RAND(22) INTO @dummy; COMMIT; CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; SET TRANSACTION READ ONLY; SET TRANSACTION READ WRITE; SELECT RAND(22) INTO @dummy; SET TRANSACTION READ WRITE; INSERT INTO t1 VALUES (1); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I___W___ SET TRANSACTION READ WRITE; ERROR 25001: Transaction characteristics can't be changed while a transaction is in progress DROP TABLE t1; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ SET autocommit=1; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- autocommit -- ON -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 # read with and without result set: CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; CREATE TABLE t2 (f1 INT) ENGINE="InnoDB"; INSERT INTO t1 VALUES (123); BEGIN; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ SELECT f1 FROM t1; f1 123 -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R___S_ COMMIT AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ INSERT INTO t2 SELECT f1 FROM t1; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_W___ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ DROP TABLE t1; DROP TABLE t2; ######################################################################## # # test "CHARACTERISTICS" tracking # SET SESSION session_track_transaction_info="CHARACTERISTICS"; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_____ START TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ # state is again "we have an empty transaction", so make no state item START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ ONLY; START TRANSACTION READ WRITE, WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION WITH CONSISTENT SNAPSHOT, READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_____ START TRANSACTION READ ONLY, WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION WITH CONSISTENT SNAPSHOT, READ ONLY; # chain read chistics, but not snapshot: COMMIT AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ SET TRANSACTION READ ONLY; ERROR 25001: Transaction characteristics can't be changed while a transaction is in progress # will create an empty characteristics item by convention, plus 0 state ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # chistics: READ ONLY SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; # chistics: READ ONLY + ISOL RR SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; SET TRANSACTION READ ONLY; # chistics: READ ONLY + ISOL RR SET TRANSACTION READ ONLY; # chistics: READ WRITE + ISOL RR SET TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; SET TRANSACTION READ WRITE; # chistics: READ WRITE + ISOL RR SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; # chistics: READ ONLY + ISOL SER SET TRANSACTION READ ONLY, ISOLATION LEVEL SERIALIZABLE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; SET TRANSACTION READ ONLY; # chistics: READ ONLY + ISOL SER BEGIN WORK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ SET SESSION transaction_read_only=0; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_read_only -- OFF -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 # one-shot (different from session default) SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # one-shot (repeats session default) SET TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ WRITE; START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # session SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_isolation -- READ-UNCOMMITTED -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- # "isolation" one-shot is set, and added to chistics tracker (=> 1 item) SET TRANSACTION ISOLATION LEVEL READ COMMITTED; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; # "read-only" one-shot is set, and added to chistics tracker (=> 2 items) SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; SET TRANSACTION READ ONLY; # setting the session default: # - we receive "changed variable" for @@session.transaction_read_only # - "read-only" one-shot is cleared, disappears from chistics tracker # - "isolation" one-shot remains set, and remains in chistics tracker SET SESSION TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_read_only -- ON -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; # chistics: isolation level is READ COMMITTED (from one-shot), READ ONLY # or READ WRITE not given, as we're using session default again START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # chistics: READ ONLY SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; # chistics: READ ONLY, READ COMM SET TRANSACTION ISOLATION LEVEL READ COMMITTED; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; SET TRANSACTION READ ONLY; # chistics: SESSION resets ISOL one-shot, READ ONLY remains SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_isolation -- READ-UNCOMMITTED -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; # chistics: SESSION resets READ one-shot, nothing remains SET SESSION TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_read_only -- ON -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_isolation -- REPEATABLE-READ -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 SET SESSION TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- transaction_read_only -- OFF -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 # show that START TRANSACTION READ ... overrides SET TRANSACTION READ .. SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; START TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # chistics AND CHAIN SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ ONLY; ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ SET TRANSACTION ISOLATION LEVEL READ COMMITTED; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ ROLLBACK AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL READ COMMITTED; START TRANSACTION READ ONLY; COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # show that session_track_transaction_info="STATE" will hide some edges SET session_track_transaction_info="STATE"; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 # normal syntax: TR->T->0 START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_____ COMMIT AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # normal syntax: T->T->0 START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ # state does not change, and therefore isn't reported COMMIT AND CHAIN; COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # pathological syntax: TR->TR->0 START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_____ # state does not change, and therefore isn't reported START TRANSACTION WITH CONSISTENT SNAPSHOT; COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # show that session_track_transaction_info="CHARACTERISTICS" shows more edges SET session_track_transaction_info="CHARACTERISTICS"; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- # normal syntax: TR->T->0 START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_____ COMMIT AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # normal syntax: T->T->0 START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ COMMIT AND CHAIN; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # pathological syntax: TR->TR->0 START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R_____ START TRANSACTION WITH CONSISTENT SNAPSHOT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION WITH CONSISTENT SNAPSHOT; COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # chistics and interaction of implicit trx and explicit trx CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; SET autocommit=0; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- autocommit -- OFF -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; INSERT INTO t1 VALUES(1); ERROR 25006: Cannot execute statement in a READ ONLY transaction. ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ WRITE; SET TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ ONLY; SET TRANSACTION READ WRITE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION READ WRITE; INSERT INTO t1 VALUES(1); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I___W___ SET TRANSACTION READ WRITE; ERROR 25001: Transaction characteristics can't be changed while a transaction is in progress START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION READ ONLY; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ DROP TABLE t1; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; INSERT INTO t1 VALUES(1); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I___W___ # implicit commit (chistics item here, clearing isolation level): ALTER TABLE t1 ADD COLUMN f2 INT; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ INSERT INTO t1 VALUES(2,2); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- I___W___ # implicit commit (no chistics item here): ALTER TABLE t1 ADD COLUMN f3 INT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- START TRANSACTION; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ DROP TABLE t1; SET autocommit=1; -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES -- autocommit -- ON -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 SET session_track_transaction_info="STATE"; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 ######################################################################## # # show that table access reporting works in Stored Functions (SF) # CREATE TABLE t1 (f1 INT) ENGINE="InnoDB"; INSERT INTO t1 VALUES (1); # create func1() in system table: CREATE FUNCTION func1() RETURNS INTEGER BEGIN SET @dummy = 0; IF (SELECT * FROM t1) THEN SET @dummy = 1; END IF; RETURN @dummy; END| # func1() reads a trx table (and is read from a system table!): BEGIN; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ SELECT func1(); func1() 1 -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_R___S_ COMMIT; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ DROP TABLE t1; # drop func1() from system table: DROP FUNCTION func1; # # log tables # SET @old_log_output= @@global.log_output; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 SET @old_general_log= @@global.general_log; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 SET @old_general_log_file= @@global.general_log_file; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 TRUNCATE TABLE mysql.general_log; SET GLOBAL log_output = 'TABLE'; SET GLOBAL general_log= 'ON'; BEGIN; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ SELECT 1 FROM DUAL; 1 1 -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_____S_ SELECT " -> ", argument FROM mysql.general_log WHERE argument LIKE '% DUAL' AND (command_type!='Prepare'); -> argument -> SELECT 1 FROM DUAL -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- Tr____S_ ROLLBACK; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ TRUNCATE TABLE mysql.general_log; SET GLOBAL general_log_file= @old_general_log_file; SET GLOBAL general_log= @old_general_log; SET GLOBAL log_output= @old_log_output; ######################################################################## # # XA # CREATE TABLE t1 (f1 int) ENGINE="InnoDB"; SET SESSION session_track_transaction_info="CHARACTERISTICS"; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- # XA ROLLBACK XA START 'test1'; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- XA START 'test1'; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ INSERT t1 VALUES (1); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T___W___ XA END 'test1'; XA PREPARE 'test1'; XA ROLLBACK 'test1'; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # XA COMMIT XA START 'test2', 'yy'; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- XA START 'test2','yy'; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ INSERT t1 VALUES (2); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T___W___ XA END 'test2', 'yy'; XA PREPARE 'test2', 'yy'; XA COMMIT 'test2', 'yy'; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ # XA COMMIT ONE PHASE XA START 'test3','xx',5; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- XA START 'test3','xx',5; -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T_______ INSERT t1 VALUES (3); -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- T___W___ XA END 'test3','xx',5; XA COMMIT 'test3','xx',5 ONE PHASE; -- Tracker : SESSION_TRACK_TRANSACTION_CHARACTERISTICS -- -- Tracker : SESSION_TRACK_TRANSACTION_STATE -- ________ SET SESSION session_track_transaction_info="OFF"; -- Tracker : SESSION_TRACK_STATE_CHANGE -- 1 DROP TABLE t1; ######################################################################## # # cleanup # SET SESSION session_track_system_variables= @old_track_list; SET SESSION session_track_state_change=@old_track_enable; SET SESSION session_track_transaction_info=@old_track_tx;