mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 10:56:12 +01:00
144 lines
2.7 KiB
Text
144 lines
2.7 KiB
Text
#
|
|
# Demonstrate how RESIGNAL can be used to print a stack trace
|
|
#
|
|
|
|
# Save defaults
|
|
|
|
SET @start_global_value = @@global.max_error_count;
|
|
SELECT @start_global_value;
|
|
SET @start_session_value = @@session.max_error_count;
|
|
SELECT @start_session_value;
|
|
|
|
--disable_warnings
|
|
drop database if exists demo;
|
|
--enable_warnings
|
|
|
|
create database demo;
|
|
|
|
use demo;
|
|
|
|
delimiter $$;
|
|
|
|
create procedure proc_1()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_1';
|
|
|
|
call proc_2();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_2()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_2';
|
|
|
|
call proc_3();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_3()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_3';
|
|
|
|
call proc_4();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_4()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_4';
|
|
|
|
call proc_5();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_5()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_5';
|
|
|
|
call proc_6();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_6()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_6';
|
|
|
|
call proc_7();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_7()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_7';
|
|
|
|
call proc_8();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_8()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_8';
|
|
|
|
call proc_9();
|
|
end
|
|
$$
|
|
|
|
create procedure proc_9()
|
|
begin
|
|
declare exit handler for sqlexception
|
|
resignal sqlstate '45000' set message_text='Oops in proc_9';
|
|
|
|
## Do something that fails, to see how errors are reported
|
|
drop table oops_it_is_not_here;
|
|
end
|
|
$$
|
|
|
|
delimiter ;$$
|
|
|
|
-- error ER_SIGNAL_EXCEPTION
|
|
call proc_1();
|
|
|
|
# This is the interesting part:
|
|
# the complete call stack from the origin of failure (proc_9)
|
|
# to the top level caller (proc_1) is available ...
|
|
|
|
show warnings;
|
|
|
|
SET @@session.max_error_count = 5;
|
|
SELECT @@session.max_error_count;
|
|
|
|
-- error ER_SIGNAL_EXCEPTION
|
|
call proc_1();
|
|
show warnings;
|
|
|
|
SET @@session.max_error_count = 7;
|
|
SELECT @@session.max_error_count;
|
|
|
|
-- error ER_SIGNAL_EXCEPTION
|
|
call proc_1();
|
|
show warnings;
|
|
|
|
SET @@session.max_error_count = 9;
|
|
SELECT @@session.max_error_count;
|
|
|
|
-- error ER_SIGNAL_EXCEPTION
|
|
call proc_1();
|
|
show warnings;
|
|
|
|
drop database demo;
|
|
|
|
# Restore defaults
|
|
|
|
SET @@global.max_error_count = @start_global_value;
|
|
SELECT @@global.max_error_count;
|
|
SET @@session.max_error_count = @start_session_value;
|
|
SELECT @@session.max_error_count;
|
|
|