#### db_type: tidb ####
#### test_type: sda_lost_self_update ####
#### 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
----------rat_sda_lost_self_update 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';

----------rat_sda_lost_self_update test run----------
Q1-T1 execute sql: 'BEGIN PESSIMISTIC;'
Q1 finished at: 2022-4-1 17:17:50:769:928
Q2-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;'
Q2 finished at: 2022-4-1 17:17:50:771:783
                                        Q3-T2 execute sql: 'BEGIN PESSIMISTIC;'
                                        Q3 finished at: 2022-4-1 17:17:50:869:976
                                        Q4-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=0;'
Q5-T1 execute sql: 'SELECT * FROM t1 WHERE k=0;'
   current_result: 
     (0,1) 
  *(1) expected_result: 
     (0,1) 
  *(2) expected_result: 
     (0,1) 

Q5 finished at: 2022-4-1 17:17:50:970:571
Q6-T1 execute opt: 'COMMIT';
Q6 finished at: 2022-4-1 17:17:50:990:655
                                        Q4 finished at: 2022-4-1 17:17:51:63:993
                                        Q7-T2 execute opt: 'COMMIT';
                                        Q7 finished at: 2022-4-1 17:17:51:82:538
                                                                                Q8-T3 execute sql: 'SELECT * FROM t1;'
                                                                                   current_result: 
                                                                                     (0,2) 
                                                                                  *(1) expected_result: 
                                                                                     (0,2) 
                                                                                   (2) expected_result: 
                                                                                     (0,1) 

                                                                                Q8 finished at: 2022-4-1 17:17:51:84:783
                                                                                Q9-T3 execute opt: 'COMMIT';
                                                                                Q9 finished at: 2022-4-1 17:17:51:85:586

The current result is consistent with the [(1) expected_result] of serial scheduling

Test Result: Avoid
Reason: Data anomaly did not occur and the data is consistent