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|
drop table if exists t1;
create table t1 (
id char(16) not null default '',
data int not null
);
drop procedure if exists goto1//
create procedure goto1()
begin
declare y int;
label a;
select * from t1;
select count(*) into y from t1;
if y > 2 then
goto b;
end if;
insert into t1 values ("j", y);
goto a;
label b;
end//
call goto1()//
id data
id data
j 0
id data
j 0
j 1
id data
j 0
j 1
j 2
drop procedure goto1//
drop procedure if exists goto2//
create procedure goto2(a int)
begin
declare x int default 0;
declare continue handler for sqlstate '42S98' set x = 1;
label a;
select * from t1;
b:
while x < 2 do
begin
declare continue handler for sqlstate '42S99' set x = 2;
if a = 0 then
set x = x + 1;
iterate b;
elseif a = 1 then
leave b;
elseif a = 2 then
set a = 1;
goto a;
end if;
end;
end while b;
select * from t1;
end//
call goto2(0)//
id data
j 0
j 1
j 2
id data
j 0
j 1
j 2
call goto2(1)//
id data
j 0
j 1
j 2
id data
j 0
j 1
j 2
call goto2(2)//
id data
j 0
j 1
j 2
id data
j 0
j 1
j 2
id data
j 0
j 1
j 2
drop procedure goto2//
delete from t1//
drop procedure if exists goto3//
create procedure goto3()
begin
label L1;
begin
end;
goto L1;
end//
drop procedure goto3//
drop procedure if exists goto4//
create procedure goto4()
begin
begin
label lab1;
begin
goto lab1;
end;
end;
end//
drop procedure goto4//
drop procedure if exists goto5//
create procedure goto5()
begin
begin
begin
goto lab1;
end;
label lab1;
end;
end//
drop procedure goto5//
drop procedure if exists goto6//
create procedure goto6()
begin
label L1;
goto L5;
begin
label L2;
goto L1;
goto L5;
begin
label L3;
goto L1;
goto L2;
goto L3;
goto L4;
goto L5;
end;
goto L2;
goto L4;
label L4;
end;
label L5;
goto L1;
end//
drop procedure goto6//
create procedure foo()
begin
goto foo;
end//
ERROR 42000: GOTO with no matching label: foo
create procedure foo()
begin
begin
label foo;
end;
goto foo;
end//
ERROR 42000: GOTO with no matching label: foo
create procedure foo()
begin
goto foo;
begin
label foo;
end;
end//
ERROR 42000: GOTO with no matching label: foo
create procedure foo()
begin
begin
goto foo;
end;
begin
label foo;
end;
end//
ERROR 42000: GOTO with no matching label: foo
create procedure foo()
begin
begin
label foo;
end;
begin
goto foo;
end;
end//
ERROR 42000: GOTO with no matching label: foo
create procedure p()
begin
declare continue handler for sqlexception
begin
goto L1;
end;
select field from t1;
label L1;
end//
ERROR HY000: GOTO is not allowed in a stored procedure handler
drop procedure if exists bug6898//
create procedure bug6898()
begin
goto label1;
label label1;
begin end;
goto label1;
end//
drop procedure bug6898//
drop table t1;
|
