Server IP : 104.21.38.3 / Your IP : 162.158.108.6 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/sys_vars/r/ |
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SET @start_global_value = @@global.gtid_executed_compression_period; SELECT @start_global_value; @start_global_value 1000 # # It exists as a global variable # SELECT @@GLOBAL.gtid_executed_compression_period; @@GLOBAL.gtid_executed_compression_period 1000 SHOW GLOBAL VARIABLES LIKE 'gtid_executed_compression_period'; Variable_name Value gtid_executed_compression_period 1000 SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME = 'gtid_executed_compression_period'; VARIABLE_NAME VARIABLE_VALUE GTID_EXECUTED_COMPRESSION_PERIOD 1000 # # It is not a session variable # SELECT @@SESSION.gtid_executed_compression_period; ERROR HY000: Variable 'gtid_executed_compression_period' is a GLOBAL variable SET SESSION gtid_executed_compression_period= 2; ERROR HY000: Variable 'gtid_executed_compression_period' is a GLOBAL variable and should be set with SET GLOBAL SHOW SESSION VARIABLES LIKE 'gtid_executed_compression_period'; Variable_name Value gtid_executed_compression_period 1000 SHOW SESSION VARIABLES LIKE 'gtid_executed_compression_period'; Variable_name Value gtid_executed_compression_period 1000 SELECT * FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME ='gtid_executed_compression_period'; VARIABLE_NAME VARIABLE_VALUE GTID_EXECUTED_COMPRESSION_PERIOD 1000 # # Verify that it's writable # SET GLOBAL gtid_executed_compression_period= 0; SELECT @@GLOBAL.gtid_executed_compression_period; @@GLOBAL.gtid_executed_compression_period 0 SET GLOBAL gtid_executed_compression_period= 5000; SELECT @@GLOBAL.gtid_executed_compression_period; @@GLOBAL.gtid_executed_compression_period 5000 SET GLOBAL gtid_executed_compression_period= 4294967295; SELECT @@GLOBAL.gtid_executed_compression_period; @@GLOBAL.gtid_executed_compression_period 4294967295 # # Verify that it could not bet set with invalid values # SET GLOBAL gtid_executed_compression_period= -1; Warnings: Warning 1292 Truncated incorrect gtid_executed_compression_period value: '-1' SELECT @@GLOBAL.gtid_executed_compression_period; @@GLOBAL.gtid_executed_compression_period 0 SET GLOBAL gtid_executed_compression_period= 4294967296; Warnings: Warning 1292 Truncated incorrect gtid_executed_compression_period value: '4294967296' SELECT @@GLOBAL.gtid_executed_compression_period; @@GLOBAL.gtid_executed_compression_period 4294967295 set global gtid_executed_compression_period= 1.1; ERROR 42000: Incorrect argument type to variable 'gtid_executed_compression_period' set global gtid_executed_compression_period= 1e1; ERROR 42000: Incorrect argument type to variable 'gtid_executed_compression_period' set global gtid_executed_compression_period= "foobar"; ERROR 42000: Incorrect argument type to variable 'gtid_executed_compression_period' SET @@global.gtid_executed_compression_period= @start_global_value; SELECT @@global.gtid_executed_compression_period; @@global.gtid_executed_compression_period 1000