#### db_type: tdsql #### #### test_type: dda_write_skew_pred_insert #### #### 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 ----------iat_dda_write_skew_pred_insert 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 opt: 'COMMIT;' ----------iat_dda_write_skew_pred_insert test run---------- Q1-T1 execute opt: 'BEGIN;' Q1 finished at: 2022-5-23 10:56:0:480:505 Q2-T1 execute sql: 'SELECT * FROM t1 WHERE v<2; ' current_result: null *(1) expected_result: null (2) expected_result: (0,1) Q2 finished at: 2022-5-23 10:56:0:558:860 Q3-T2 execute opt: 'BEGIN;' Q3 finished at: 2022-5-23 10:56:1:59:361 Q4-T2 execute sql: 'SELECT * FROM t1 WHERE v>2;' current_result: null (1) expected_result: (1,3) *(2) expected_result: null Q4 finished at: 2022-5-23 10:56:1:140:277 Q5-T2 execute sql: 'INSERT INTO t1 VALUES (0, 1);' Q5 finished at: 2022-5-23 10:56:1:220:817 Q6-T1 execute sql: 'INSERT INTO t1 VALUES (1, 3);' Q6 finished at: 2022-5-23 10:56:1:556:566 Q7-T1 execute opt: 'COMMIT;' Q7 finished at: 2022-5-23 10:56:1:633:86 Q8-T2 execute opt: 'COMMIT;' Q8 finished at: 2022-5-23 10:56:2:60:632 Q9-T3 execute sql: 'SELECT * FROM t1 ORDER BY k;' current_result: (0,1) (1,3) *(1) expected_result: (0,1) (1,3) *(2) expected_result: (0,1) (1,3) Q9 finished at: 2022-5-23 10:56:2:142:332 Q10-T3 execute opt: 'COMMIT;' Q10 finished at: 2022-5-23 10:56:2:223:811 Test Result: Anomaly Reason: Data anomaly is not recognized by the database, resulting in data inconsistencies