#### db_type: gp #### #### test_type: dda_read_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 ----------iat_dda_read_write_skew1_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 sql: 'INSERT INTO t1 VALUES (1, 0);' Q0-T1 execute opt: 'COMMIT'; ----------iat_dda_read_write_skew1_committed test run---------- Q1-T1 execute opt: 'BEGIN' Q1 finished at: 2022-4-11 12:19:0:378:11 Q2-T1 execute sql: 'SELECT * FROM t1 WHERE k=0;' current_result: (0,0) *(1) expected_result: (0,0) (2) expected_result: (0,1) Q2 finished at: 2022-4-11 12:19:0:389:248 Q3-T2 execute opt: 'BEGIN' Q3 finished at: 2022-4-11 12:19:1:378:11 Q4-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=1;' Q4 finished at: 2022-4-11 12:19:1:394:396 Q5-T2 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q5 finished at: 2022-4-11 12:19:1:400:615 Q6-T2 execute opt: 'COMMIT'; Q6 finished at: 2022-4-11 12:19:1:426:426 Q7-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=1;' Q7 failed reason: ERROR: could not serialize access due to concurrent update (seg1 9.135.218.12:6001 pid=23981); errcode: 40001 Q7 failed at: 2022-4-11 12:19:3:86:619 Test Result: Rollback Reason: ERROR: could not serialize access due to concurrent update (seg1 9.135.218.12:6001 pid=23981);