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Uname:Linux wp 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64

Base Dir : /var/www/eduesan

User : www-data


403WebShell
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Server IP : 202.131.237.196  /  Your IP : 216.73.216.192
Web Server : nginx/1.14.0
System : Linux wp 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64
User : www-data ( 33)
PHP Version : 7.2.24-0ubuntu0.18.04.17
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,
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Directory :  /www/server/mysql/mysql-test/suite/innodb/r/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /www/server/mysql/mysql-test/suite/innodb/r/innodb_bug53756.result
DROP TABLE IF EXISTS bug_53756 ;
CREATE TABLE bug_53756 (pk INT, c1 INT) ENGINE=InnoDB;
ALTER TABLE bug_53756 ADD PRIMARY KEY (pk);
INSERT INTO bug_53756 VALUES(1, 11), (2, 22), (3, 33), (4, 44);

# Select a less restrictive isolation level.
SET GLOBAL TRANSACTION ISOLATION LEVEL READ COMMITTED;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
COMMIT;

# Start a transaction in the default connection for isolation.
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
SELECT * FROM bug_53756;
pk	c1
1	11
2	22
3	33
4	44

# connection con1 deletes row 1
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
DELETE FROM bug_53756 WHERE pk=1;

# connection con2 deletes row 2
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
DELETE FROM bug_53756 WHERE pk=2;

# connection con3 updates row 3
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
UPDATE bug_53756 SET c1=77 WHERE pk=3;

# connection con4 updates row 4
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
UPDATE bug_53756 SET c1=88 WHERE pk=4;

# connection con5 inserts row 5
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
INSERT INTO bug_53756 VALUES(5, 55);

# connection con6 inserts row 6
START TRANSACTION;
SELECT @@tx_isolation;
@@tx_isolation
READ-COMMITTED
INSERT INTO bug_53756 VALUES(6, 66);

# connection con1 commits.
COMMIT;

# connection con3 commits.
COMMIT;

# connection con4 rolls back.
ROLLBACK;

# connection con6 rolls back.
ROLLBACK;

# The connections 2 and 5 stay open.

# connection default selects resulting data.
# Delete of row 1 was committed.
# Update of row 3 was committed.
# Due to isolation level read committed, these should be included.
# All other changes should not be included.
SELECT * FROM bug_53756;
pk	c1
2	22
3	77
4	44

# connection default
#
# Crash server.
START TRANSACTION;
INSERT INTO bug_53756 VALUES (666,666);
SET SESSION debug="+d,crash_commit_before";
COMMIT;
ERROR HY000: Lost connection to MySQL server during query

#
# disconnect con1, con2, con3, con4, con5, con6.
#
# Restart server.

#
# Select recovered data.
# Delete of row 1 was committed.
# Update of row 3 was committed.
# These should be included.
# All other changes should not be included.
# Delete of row 2 and insert of row 5 should be rolled back
SELECT * FROM bug_53756;
pk	c1
2	22
3	77
4	44

# Clean up.
DROP TABLE bug_53756;

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