#### db_type: ob #### #### test_type: sda_lost_update_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_sda_lost_update_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 opt: 'COMMIT;' ----------wat_sda_lost_update_c1 test run---------- Q1-T1 execute sql: 'BEGIN;' Q1 finished at: 2022-5-20 15:9:57:778:116 Q2-T1 execute sql: 'SELECT * FROM t1 WHERE k=0;' current_result: (0,0) *(1) expected_result: (0,0) (2) expected_result: (0,2) Q2 finished at: 2022-5-20 15:9:57:781:485 Q3-T2 execute sql: 'BEGIN;' Q3 finished at: 2022-5-20 15:9:57:877:719 Q4-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=0;' Q4 finished at: 2022-5-20 15:9:57:880:766 Q5-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q7-T2 execute opt: 'COMMIT;' Q7 finished at: 2022-5-20 15:9:58:79:40 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 15:9:58:579:878 Test Result: Rollback Reason: [MySQL][ODBC 8.0(w) Driver][mysqld-5.7.25]can't serialize access for this transaction