| Server IP : 104.21.38.3 / Your IP : 162.158.189.231 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.old_alter_table; SELECT @start_global_value; @start_global_value 0 select @@global.old_alter_table; @@global.old_alter_table 0 select @@session.old_alter_table; @@session.old_alter_table 0 show global variables like 'old_alter_table'; Variable_name Value old_alter_table OFF show session variables like 'old_alter_table'; Variable_name Value old_alter_table OFF select * from information_schema.global_variables where variable_name='old_alter_table'; VARIABLE_NAME VARIABLE_VALUE OLD_ALTER_TABLE OFF select * from information_schema.session_variables where variable_name='old_alter_table'; VARIABLE_NAME VARIABLE_VALUE OLD_ALTER_TABLE OFF set global old_alter_table=1; set session old_alter_table=ON; select @@global.old_alter_table; @@global.old_alter_table 1 select @@session.old_alter_table; @@session.old_alter_table 1 show global variables like 'old_alter_table'; Variable_name Value old_alter_table ON show session variables like 'old_alter_table'; Variable_name Value old_alter_table ON select * from information_schema.global_variables where variable_name='old_alter_table'; VARIABLE_NAME VARIABLE_VALUE OLD_ALTER_TABLE ON select * from information_schema.session_variables where variable_name='old_alter_table'; VARIABLE_NAME VARIABLE_VALUE OLD_ALTER_TABLE ON SET @@global.old_alter_table=DEFAULT; SELECT @@global.old_alter_table; @@global.old_alter_table 0 SET @@session.old_alter_table=DEFAULT; SELECT @@session.old_alter_table; @@session.old_alter_table 0 set global old_alter_table=1.1; ERROR 42000: Incorrect argument type to variable 'old_alter_table' set global old_alter_table=1e1; ERROR 42000: Incorrect argument type to variable 'old_alter_table' set global old_alter_table="foo"; ERROR 42000: Variable 'old_alter_table' can't be set to the value of 'foo' SET @@global.old_alter_table = @start_global_value; SELECT @@global.old_alter_table; @@global.old_alter_table 0