1################################################################################
2#
3# Purpose: Execute changes to t1 and roll back to potentially mess up
4#          REPEATABLE READ queries in other transactions.
5#
6#  - Start transaction
7#  - Do "bogus" updates
8#  - ROLLBACK
9#  - Do "bogus" inserts
10#  - Do bogus deletes
11#  - ROLLBACK
12#
13# Handles rows with pk between 500 and 550.
14#
15################################################################################
16
17# TODO: Handle tx errors (possible deadlocks?)
18
19SET autocommit = 0;
20
21START TRANSACTION;
22--echo *** All changes done in this test / transaction will be rolled back.
23
24let $conn_id= `SELECT CONNECTION_ID()`;
25
26# "Bogus" updates:
27
28# Disabling query log to avoid complex filtering of output in order to keep
29# result file diffing clean.
30--echo *** Disabling query log.
31--disable_query_log
32
33--echo *** Executing UPDATE on rows 501 -- 549 with id = 50, single statement.
34--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
35eval UPDATE t1 SET `int1` = 50,
36                   `int1_key` = `int1_key` + 50,
37                   `int2` = `int2` - 50,
38                   `id` = 50,
39                   `is_consistent` = 0,
40                   `is_uncommitted` = 1,
41                   `connection_id` = $conn_id
42    WHERE `pk` > 500 AND `pk` < 550;
43
44--echo *** Executing UPDATE on rows 526 -- 549 with id = 50, single statement.
45--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
46eval UPDATE t1 SET `int2_key` = 50,
47                   `id` = 50,
48                   `is_consistent` = 0,
49                   `is_uncommitted` = 1,
50                   `connection_id` = $conn_id
51    WHERE `pk` > 525 AND `pk` < 550;
52
53# Still "bogus" updates... Now update 25 rows in succession, single field:
54--echo *** Executing UPDATE on rows 501 -- 525 with id = 50, multiple statements.
55
56let $updates= 25;
57while ($updates)
58{
59    --error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
60    eval UPDATE t1 SET `int2_key` = 50,
61                       `id` = 50,
62                       `is_consistent` = 0,
63                       `is_uncommitted` = 1,
64                       `connection_id` = $conn_id
65             WHERE `pk` = (SELECT 526 - $updates);
66    dec $updates;
67}
68
69--echo *** ROLLBACK
70ROLLBACK;
71
72--echo *** START TRANSACTION
73START TRANSACTION;
74# Now do some "bogus" inserts:
75--echo *** Executing INSERTs of rows with id = 50, 2 statements.
76
77--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_DUP_ENTRY
78eval INSERT INTO t1 (`id`, `int1`, `int1_key`, `int1_unique`, `connection_id`)
79        VALUES (50, 505050, -505050, 505050, $conn_id);
80
81--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_DUP_ENTRY
82eval INSERT INTO t1 (`id`, `int2`, `int2_key`, `int2_unique`, `connection_id`)
83        VALUES (50, -505050, 505050, -505050, $conn_id);
84
85# And some "bogus" deletes:
86--echo *** Executing DELETE of rows with pk between 449 and 540, single statement.
87--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
88DELETE FROM t1 WHERE `pk` BETWEEN 449 AND 540;
89
90--echo *** Enabling query log.
91--enable_query_log
92
93ROLLBACK;
94
95