| Server IP : 172.67.216.182 / Your IP : 172.70.189.164 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,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_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /www/server/mysql/src/mysql-test/suite/innodb/r/ |
Upload File : |
# # Bug#27189701 INNODB: EARLY RELEASE OF GAP LOCKS FOR RC # ISOLATION [XA PREPARE] # CREATE TABLE t1 (col1 INT PRIMARY KEY, col2 int); Connection: default SET DEBUG='+d,ib_force_release_gap_lock_prepare'; # 1.Test GAP lock only on supremum record XA START 'lock_trx'; SELECT * FROM t1; col1 col2 # Update empty table acquire GAP lock on supremum UPDATE t1 SET col2 = 100 where col1 = 10; Connection: con1 INSERT INTO t1 values(10, 100); Connection: default XA END 'lock_trx'; XA PREPARE 'lock_trx'; Connection: con1 INSERT INTO t1 values(20, 200); SELECT * FROM t1 ORDER BY col1; col1 col2 10 100 20 200 Connection: default XA COMMIT 'lock_trx'; # 2.Test GAP lock on multiple records XA START 'lock_trx_1'; # Update table acquire GAP lock on all rows UPDATE t1 SET col2 = col2 + 1; Connection: con1 INSERT INTO t1 values(5, 50); Connection: default XA END 'lock_trx_1'; XA PREPARE 'lock_trx_1'; Connection: con1 INSERT INTO t1 values(15, 150); INSERT INTO t1 values(25, 150); SELECT * FROM t1 ORDER BY col1; col1 col2 5 50 10 100 15 150 20 200 25 150 Connection: default XA COMMIT 'lock_trx_1'; SELECT * FROM t1 ORDER BY col1; col1 col2 5 50 10 101 15 150 20 201 25 150 SET DEBUG='-d,ib_force_release_gap_lock_prepare'; DROP TABLE t1;