#### db_type: ob #### #### test_type: dda_read_write_skew2_c1 #### #### isolation: serializable #### 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 ----------wat_dda_read_write_skew2_c1 test prepare---------- Q0-T1 execute sql: 'DROP TABLE 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 opt: 'COMMIT;' ----------wat_dda_read_write_skew2_c1 test run---------- Q1-T1 execute sql: 'BEGIN;' Q1 finished at: 2022-5-20 15:10:15:60:768 Q2-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q2 finished at: 2022-5-20 15:10:15:65:245 Q3-T2 execute sql: 'BEGIN;' Q3 finished at: 2022-5-20 15:10:15:160:445 Q4-T2 execute sql: 'SELECT * FROM t1 WHERE k=1;' current_result: (1,0) (1) expected_result: (1,1) *(2) expected_result: (1,0) Q4 finished at: 2022-5-20 15:10:15:162:997 Q5-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=0;' Q6-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=1;' Q6 finished at: 2022-5-20 15:10:15:260:945 Q7-T1 execute opt: 'COMMIT;' Q7 finished at: 2022-5-20 15:10:15:263:262 Q5 failed reason: [MySQL][ODBC 8.0(w) Driver][mysqld-5.7.25]can't serialize access for this transaction errcode: HY000 Q5 failed at: 2022-5-20 15:10:15:764:207 Test Result: Rollback Reason: [MySQL][ODBC 8.0(w) Driver][mysqld-5.7.25]can't serialize access for this transaction