#### db_type: gp #### #### test_type: dda_double_write_skew1_committed #### #### 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 set TXN_ISOLATION = serializable for each session ----------rat_dda_double_write_skew1_committed test prepare---------- Q0-T1 execute sql: 'DROP TABLE IF EXISTS t1;' Q0-T1 execute sql: 'DROP TABLE IF EXISTS t2;' Q0-T1 execute sql: 'CREATE TABLE t1 (k INT PRIMARY KEY, v INT);' Q0-T1 execute sql: 'CREATE TABLE t2 (k INT PRIMARY KEY, v INT);' Q0-T1 execute sql: 'INSERT INTO t1 VALUES (0, 0);' Q0-T1 execute sql: 'INSERT INTO t2 VALUES (1, 0);' Q0-T1 execute opt: 'COMMIT'; ----------rat_dda_double_write_skew1_committed test run---------- Q1-T1 execute opt: 'BEGIN' Q1 finished at: 2022-4-11 12:4:23:48:742 Q2-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q2 finished at: 2022-4-11 12:4:23:61:150 Q3-T2 execute opt: 'BEGIN' Q3 finished at: 2022-4-11 12:4:24:48:747 Q4-T2 execute sql: 'UPDATE t2 SET v=1 WHERE k=1;' Q4 finished at: 2022-4-11 12:4:24:61:214 Q5-T2 execute sql: 'SELECT * FROM t1 WHERE k=0;' current_result: (0,0) (1) expected_result: (0,1) *(2) expected_result: (0,0) Q5 finished at: 2022-4-11 12:4:24:67:587 Q6-T2 execute opt: 'COMMIT'; Q6 finished at: 2022-4-11 12:4:24:95:416 Q7-T1 execute sql: 'UPDATE t2 SET v=2 WHERE k=1;' Q7 failed reason: ERROR: could not serialize access due to concurrent update (seg1 9.135.218.12:6001 pid=14973); errcode: 40001 Q7 failed at: 2022-4-11 12:4:25:758:717 Test Result: Rollback Reason: ERROR: could not serialize access due to concurrent update (seg1 9.135.218.12:6001 pid=14973);