| Server IP : 88.99.149.37 / Your IP : 216.73.216.141 Web Server : nginx/1.31.2 System : Linux server-88-99-149-37 6.12.0-124.56.5.el10_1.x86_64 #1 SMP PREEMPT_DYNAMIC Fri May 15 06:12:08 EDT 2026 x86_64 User : muralimurth ( 1015) PHP Version : 8.4.23 Disable Function : exec,system,passthru,shell_exec,proc_close,proc_open,dl,popen,show_source,posix_kill,posix_mkfifo,posix_getpwuid,posix_setpgid,posix_setsid,posix_setuid,posix_setgid,posix_seteuid,posix_setegid,posix_uname MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/local/mysql/mysql-test/suite/sys_vars/t/ |
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# # 2010-01-20 OBN - Added check of I_S values after variable value change # SET @start_global_value = @@global.thread_cache_size; SELECT @start_global_value; # # exists as global only # select @@global.thread_cache_size; --error ER_INCORRECT_GLOBAL_LOCAL_VAR select @@session.thread_cache_size; show global variables like 'thread_cache_size'; show session variables like 'thread_cache_size'; select * from information_schema.global_variables where variable_name='thread_cache_size'; select * from information_schema.session_variables where variable_name='thread_cache_size'; # # show that it's writable # set global thread_cache_size=1; select @@global.thread_cache_size; select * from information_schema.global_variables where variable_name='thread_cache_size'; select * from information_schema.session_variables where variable_name='thread_cache_size'; --error ER_GLOBAL_VARIABLE set session thread_cache_size=1; # # incorrect types # --error ER_WRONG_TYPE_FOR_VAR set global thread_cache_size=1.1; --error ER_WRONG_TYPE_FOR_VAR set global thread_cache_size=1e1; --error ER_WRONG_TYPE_FOR_VAR set global thread_cache_size="foo"; # # min/max values # set global thread_cache_size=0; select @@global.thread_cache_size; set global thread_cache_size=cast(-1 as unsigned int); select @@global.thread_cache_size; SET @@global.thread_cache_size = @start_global_value; SELECT @@global.thread_cache_size;