95 lines
3.0 KiB
Plaintext
95 lines
3.0 KiB
Plaintext
################################################################################
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#
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# Purpose: Execute changes to t1 and roll back to potentially mess up
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# REPEATABLE READ queries in other transactions.
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#
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# - Start transaction
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# - Do "bogus" updates
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# - ROLLBACK
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# - Do "bogus" inserts
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# - Do bogus deletes
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# - ROLLBACK
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#
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# Handles rows with pk between 500 and 550.
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#
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################################################################################
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# TODO: Handle tx errors (possible deadlocks?)
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SET autocommit = 0;
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START TRANSACTION;
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--echo *** All changes done in this test / transaction will be rolled back.
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let $conn_id= `SELECT CONNECTION_ID()`;
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# "Bogus" updates:
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# Disabling query log to avoid complex filtering of output in order to keep
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# result file diffing clean.
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--echo *** Disabling query log.
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--disable_query_log
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--echo *** Executing UPDATE on rows 501 -- 549 with id = 50, single statement.
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--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
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eval UPDATE t1 SET `int1` = 50,
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`int1_key` = `int1_key` + 50,
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`int2` = `int2` - 50,
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`id` = 50,
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`is_consistent` = 0,
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`is_uncommitted` = 1,
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`connection_id` = $conn_id
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WHERE `pk` > 500 AND `pk` < 550;
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--echo *** Executing UPDATE on rows 526 -- 549 with id = 50, single statement.
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--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
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eval UPDATE t1 SET `int2_key` = 50,
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`id` = 50,
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`is_consistent` = 0,
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`is_uncommitted` = 1,
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`connection_id` = $conn_id
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WHERE `pk` > 525 AND `pk` < 550;
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# Still "bogus" updates... Now update 25 rows in succession, single field:
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--echo *** Executing UPDATE on rows 501 -- 525 with id = 50, multiple statements.
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let $updates= 25;
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while ($updates)
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{
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--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
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eval UPDATE t1 SET `int2_key` = 50,
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`id` = 50,
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`is_consistent` = 0,
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`is_uncommitted` = 1,
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`connection_id` = $conn_id
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WHERE `pk` = (SELECT 526 - $updates);
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dec $updates;
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}
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--echo *** ROLLBACK
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ROLLBACK;
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--echo *** START TRANSACTION
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START TRANSACTION;
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# Now do some "bogus" inserts:
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--echo *** Executing INSERTs of rows with id = 50, 2 statements.
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--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_DUP_ENTRY
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eval INSERT INTO t1 (`id`, `int1`, `int1_key`, `int1_unique`, `connection_id`)
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VALUES (50, 505050, -505050, 505050, $conn_id);
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--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_DUP_ENTRY
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eval INSERT INTO t1 (`id`, `int2`, `int2_key`, `int2_unique`, `connection_id`)
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VALUES (50, -505050, 505050, -505050, $conn_id);
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# And some "bogus" deletes:
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--echo *** Executing DELETE of rows with pk between 449 and 540, single statement.
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--error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD
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DELETE FROM t1 WHERE `pk` BETWEEN 449 AND 540;
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--echo *** Enabling query log.
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--enable_query_log
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ROLLBACK;
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