#### db_type: tidb #### #### test_type: mda_step_wat_c1 #### #### isolation: read-committed #### current_result: The query result of the current SQL statement. Each row of table is separated by a space, and the fields in each row are separated by commas expected_result: The expected result is the expected query result for each SQL that conforms to the serializability theory set TXN_ISOLATION = read-committed for each session ----------wat_mda_step_wat_c1 test prepare---------- Q0-T1 execute sql: 'DROP TABLE IF EXISTS t1;' Q0-T1 execute sql: 'CREATE TABLE t1 (k INT PRIMARY KEY, v INT);' Q0-T1 execute sql: 'INSERT INTO t1 VALUES (0, 0);' Q0-T1 execute sql: 'INSERT INTO t1 VALUES (1, 0);' Q0-T1 execute sql: 'INSERT INTO t1 VALUES (2, 0);' Q0-T1 execute opt: 'COMMIT'; ----------wat_mda_step_wat_c1 test run---------- Q1-T1 execute sql: 'BEGIN OPTIMISTIC;' Q1 finished at: 2022-4-1 17:26:8:766:639 Q2-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q2 finished at: 2022-4-1 17:26:8:768:770 Q3-T2 execute sql: 'BEGIN OPTIMISTIC;' Q3 finished at: 2022-4-1 17:26:8:866:356 Q4-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=1;' Q4 finished at: 2022-4-1 17:26:8:868:96 Q5-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=0;' Q5 finished at: 2022-4-1 17:26:8:871:606 Q6-T3 execute sql: 'BEGIN OPTIMISTIC;' Q6 finished at: 2022-4-1 17:26:8:966:494 Q7-T3 execute sql: 'UPDATE t1 SET v=3 WHERE k=2;' Q7 finished at: 2022-4-1 17:26:8:968:202 Q8-T3 execute sql: 'UPDATE t1 SET v=3 WHERE k=1;' Q8 finished at: 2022-4-1 17:26:8:969:719 Q9-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=2;' Q9 finished at: 2022-4-1 17:26:9:68:781 Q10-T1 execute opt: 'COMMIT'; Q10 finished at: 2022-4-1 17:26:9:70:425 Q11-T2 execute opt: 'COMMIT'; Q12-T3 execute opt: 'COMMIT'; Q11 failed reason: [MySQL][ODBC 8.0(w) Driver]Write conflict, txnStartTS=432224382187208704, conflictStartTS=432224382160994304, conflictCommitTS=432224382240686080, key={tableID=2655, handle=0} primary=[]byte(nil) [try again later] errcode: HY000 Q11 failed at: 2022-4-1 17:26:10:268:732 Q12 failed reason: [MySQL][ODBC 8.0(w) Driver]Write conflict, txnStartTS=432224382213423104, conflictStartTS=432224382160994304, conflictCommitTS=432224382240686080, key={tableID=2655, handle=2} primary=[]byte(nil) [try again later] errcode: HY000 Q12 failed at: 2022-4-1 17:26:10:467:631 Test Result: Rollback [MySQL][ODBC 8.0(w) Driver]Write conflict, txnStartTS=432224382187208704, conflictStartTS=432224382160994304, conflictCommitTS=432224382240686080, key={tableID=2655, handle=0} primary=[]byte(nil) [try again later]