#### db_type: tidb #### #### test_type: dda_read_skew2_committed #### #### isolation: repeatable-read #### 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 = repeatable-read for each session ----------rat_dda_read_skew2_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'; ----------rat_dda_read_skew2_committed test run---------- Q1-T1 execute sql: 'BEGIN PESSIMISTIC;' Q1 finished at: 2022-4-1 17:18:31:956:142 Q2-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q2 finished at: 2022-4-1 17:18:31:957:945 Q3-T2 execute sql: 'BEGIN PESSIMISTIC;' Q3 finished at: 2022-4-1 17:18:32:57:522 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: 2022-4-1 17:18:32:59:404 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: 2022-4-1 17:18:32:61:352 Q6-T2 execute opt: 'COMMIT'; Q6 finished at: 2022-4-1 17:18:32:62:346 Q7-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=1;' Q7 finished at: 2022-4-1 17:18:32:161:33 Q8-T1 execute opt: 'COMMIT'; Q8 finished at: 2022-4-1 17:18:32:162:475 Q9-T3 execute sql: 'SELECT * FROM t1 ORDER BY k;' current_result: (0,1) (1,1) *(1) expected_result: (0,1) (1,1) *(2) expected_result: (0,1) (1,1) Q9 finished at: 2022-4-1 17:18:32:165:488 Q10-T3 execute opt: 'COMMIT'; Q10 finished at: 2022-4-1 17:18:32:166:585 The current result is consistent with the [(2) expected_result] of serial scheduling Test Result: Avoid Reason: Data anomaly did not occur and the data is consistent