#### db_type: gp #### #### test_type: sda_lost_update_committed #### #### 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 ----------iat_sda_lost_update_committed 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 opt: 'COMMIT'; ----------iat_sda_lost_update_committed test run---------- Q1-T1 execute opt: 'BEGIN' Q1 finished at: 2022-4-11 12:56:56:760:790 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: 2022-4-11 12:56:56:771:607 Q3-T2 execute opt: 'BEGIN' Q3 finished at: 2022-4-11 12:56:57:760:786 Q4-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=0;' Q4 finished at: 2022-4-11 12:56:57:774:778 Q5-T2 execute opt: 'COMMIT'; Q5 finished at: 2022-4-11 12:56:57:790:899 Q6-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q6 finished at: 2022-4-11 12:56:58:767:808 Q7-T1 execute opt: 'COMMIT'; Q7 finished at: 2022-4-11 12:56:58:780:903 Q8-T3 execute sql: 'SELECT * FROM t1;' current_result: (0,1) (1) expected_result: (0,2) *(2) expected_result: (0,1) Q8 finished at: 2022-4-11 12:57:8:768:445 Q9-T3 execute opt: 'COMMIT'; Q9 finished at: 2022-4-11 12:57:8:768:629 Test Result: Anomaly Reason: Data anomaly is not recognized by the database, resulting in data inconsistencies