#### db_type: crdb #### #### test_type: dda_read_write_skew2_c1 #### #### 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 ----------wat_dda_read_write_skew2_c1 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);' ----------wat_dda_read_write_skew2_c1 test run---------- Q1-T1 execute sql: 'BEGIN TRANSACTION;' Q1 finished at: 2022-4-2 16:52:57:81:303 Q2-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=0;' Q2 finished at: 2022-4-2 16:52:57:85:211 Q3-T2 execute sql: 'BEGIN TRANSACTION;' Q3 finished at: 2022-4-2 16:52:57:180:891 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: 2022-4-2 16:52:57:184:569 Q5-T2 execute sql: 'UPDATE t1 SET v=2 WHERE k=0;' Q6-T1 execute sql: 'UPDATE t1 SET v=1 WHERE k=1;' Q6 finished at: 2022-4-2 16:52:57:282:373 Q7-T1 execute sql: 'COMMIT TRANSACTION;' Q7 finished at: 2022-4-2 16:52:57:286:335 Q5 failed reason: Server error [SQL state: 40001]: restart transaction: TransactionRetryWithProtoRefreshError: WriteTooOldError: write at timestamp 1648889577.180503439,0 too old; wrote at 1648889577.180503439,2 errcode: HY000 Q5 failed at: 2022-4-2 16:52:57:795:551 Test Result: Rollback Reason: Server error [SQL state: 40001]: restart transaction: TransactionRetryWithProtoRefreshError: WriteTooOldError: write at timestamp 1648889577.180503439,0 too old; wrote at 1648889577.180503439,2