drop procedure if exists empty;
drop procedure if exists code_sample;
create procedure empty()
begin
end;
show procedure code empty;
Pos	Instruction
drop procedure empty;
create function almost_empty()
returns int
return 0;
show function code almost_empty;
Pos	Instruction
0	freturn 3 0
drop function almost_empty;
create procedure code_sample(x int, out err int, out nulls int)
begin
declare count int default 0;
set nulls = 0;
begin
declare c cursor for select name from t1;
declare exit handler for not found close c;
open c;
loop
begin
declare n varchar(20);
declare continue handler for sqlexception set err=1;
fetch c into n;
if isnull(n) then
set nulls = nulls + 1;
else
set count = count + 1;
update t2 set idx = count where name=n;
end if;
end;
end loop;
end;
select t.name, t.idx from t2 t order by idx asc;
end//
show procedure code code_sample;
Pos	Instruction
0	set count@3 0
1	set nulls@2 0
2	cpush c@0
3	hpush_jump 6 4 EXIT
4	cclose c@0
5	hreturn 0 19
6	copen c@0
7	set n@4 NULL
8	hpush_jump 11 5 CONTINUE
9	set err@1 1
10	hreturn 5
11	cfetch c@0 n@4
12	jump_if_not 15(17) isnull(n@4)
13	set nulls@2 (nulls@2 + 1)
14	jump 17
15	set count@3 (count@3 + 1)
16	stmt 4 "update t2 set idx = count where name=n"
17	hpop 1
18	jump 7
19	hpop 1
20	cpop 1
21	stmt 0 "select t.name, t.idx from t2 t order ..."
drop procedure code_sample;
drop procedure if exists sudoku_solve;
create procedure sudoku_solve(p_naive boolean, p_all boolean)
deterministic
modifies sql data
begin
drop temporary table if exists sudoku_work, sudoku_schedule;
create temporary table sudoku_work
(
row smallint not null,
col smallint not null,
dig smallint not null,
cnt smallint,
key using btree (cnt),
key using btree (row),
key using btree (col),
unique key using hash (row,col)
);
create temporary table sudoku_schedule
(
idx int not null auto_increment primary key,
row smallint not null,
col smallint not null
);
call sudoku_init();
if p_naive then
update sudoku_work set cnt = 0 where dig = 0;
else
call sudoku_count();
end if;
insert into sudoku_schedule (row,col)
select row,col from sudoku_work where cnt is not null order by cnt desc;
begin
declare v_scounter bigint default 0;
declare v_i smallint default 1;
declare v_dig smallint;
declare v_schedmax smallint;
select count(*) into v_schedmax from sudoku_schedule;
more: 
loop
begin
declare v_tcounter bigint default 0;
sched:
while v_i <= v_schedmax do
begin
declare v_row, v_col smallint;
select row,col into v_row,v_col from sudoku_schedule where v_i = idx;
select dig into v_dig from sudoku_work
where v_row = row and v_col = col;
case v_dig
when 0 then
set v_dig = 1;
update sudoku_work set dig = 1
where v_row = row and v_col = col;
when 9 then
if v_i > 0 then
update sudoku_work set dig = 0
where v_row = row and v_col = col;
set v_i = v_i - 1;
iterate sched;
else
select v_scounter as 'Solutions';
leave more;
end if;
else
set v_dig = v_dig + 1;
update sudoku_work set dig = v_dig
where v_row = row and v_col = col;
end case;
set v_tcounter = v_tcounter + 1;
if not sudoku_digit_ok(v_row, v_col, v_dig) then
iterate sched;
end if;
set v_i = v_i + 1;
end;
end while sched;
select dig from sudoku_work;
select v_tcounter as 'Tests';
set v_scounter = v_scounter + 1;
if p_all and v_i > 0 then
set v_i = v_i - 1;
else
leave more;
end if;
end;
end loop more;
end;
drop temporary table sudoku_work, sudoku_schedule;
end//
show procedure code sudoku_solve;
Pos	Instruction
0	stmt 9 "drop temporary table if exists sudoku..."
1	stmt 1 "create temporary table sudoku_work ( ..."
2	stmt 1 "create temporary table sudoku_schedul..."
3	stmt 94 "call sudoku_init()"
4	jump_if_not 7(8) p_naive@0
5	stmt 4 "update sudoku_work set cnt = 0 where ..."
6	jump 8
7	stmt 94 "call sudoku_count()"
8	stmt 6 "insert into sudoku_schedule (row,col)..."
9	set v_scounter@2 0
10	set v_i@3 1
11	set v_dig@4 NULL
12	set v_schedmax@5 NULL
13	stmt 0 "select count(*) into v_schedmax from ..."
14	set v_tcounter@6 0
15	jump_if_not 39(39) (v_i@3 <= v_schedmax@5)
16	set v_row@7 NULL
17	set v_col@8 NULL
18	stmt 0 "select row,col into v_row,v_col from ..."
19	stmt 0 "select dig into v_dig from sudoku_wor..."
20	set_case_expr (34) 0 v_dig@4
21	jump_if_not 25(34) (case_expr@0 = 0)
22	set v_dig@4 1
23	stmt 4 "update sudoku_work set dig = 1 where ..."
24	jump 34
25	jump_if_not 32(34) (case_expr@0 = 9)
26	jump_if_not 30(34) (v_i@3 > 0)
27	stmt 4 "update sudoku_work set dig = 0 where ..."
28	set v_i@3 (v_i@3 - 1)
29	jump 15
30	stmt 0 "select v_scounter as 'Solutions'"
31	jump 45
32	set v_dig@4 (v_dig@4 + 1)
33	stmt 4 "update sudoku_work set dig = v_dig wh..."
34	set v_tcounter@6 (v_tcounter@6 + 1)
35	jump_if_not 37(37) (not(`sudoku_digit_ok`(v_row@7,v_col@8,v_dig@4)))
36	jump 15
37	set v_i@3 (v_i@3 + 1)
38	jump 15
39	stmt 0 "select dig from sudoku_work"
40	stmt 0 "select v_tcounter as 'Tests'"
41	set v_scounter@2 (v_scounter@2 + 1)
42	jump_if_not 45(14) (p_all@1 and (v_i@3 > 0))
43	set v_i@3 (v_i@3 - 1)
44	jump 14
45	stmt 9 "drop temporary table sudoku_work, sud..."
drop procedure sudoku_solve;
DROP PROCEDURE IF EXISTS proc_19194_simple;
DROP PROCEDURE IF EXISTS proc_19194_searched;
DROP PROCEDURE IF EXISTS proc_19194_nested_1;
DROP PROCEDURE IF EXISTS proc_19194_nested_2;
DROP PROCEDURE IF EXISTS proc_19194_nested_3;
DROP PROCEDURE IF EXISTS proc_19194_nested_4;
CREATE PROCEDURE proc_19194_simple(i int)
BEGIN
DECLARE str CHAR(10);
CASE i
WHEN 1 THEN SET str="1";
WHEN 2 THEN SET str="2";
WHEN 3 THEN SET str="3";
ELSE SET str="unknown";
END CASE;
SELECT str;
END|
CREATE PROCEDURE proc_19194_searched(i int)
BEGIN
DECLARE str CHAR(10);
CASE
WHEN i=1 THEN SET str="1";
WHEN i=2 THEN SET str="2";
WHEN i=3 THEN SET str="3";
ELSE SET str="unknown";
END CASE;
SELECT str;
END|
CREATE PROCEDURE proc_19194_nested_1(i int, j int)
BEGIN
DECLARE str_i CHAR(10);
DECLARE str_j CHAR(10);
CASE i
WHEN 10 THEN SET str_i="10";
WHEN 20 THEN
BEGIN
set str_i="20";
CASE
WHEN j=1 THEN SET str_j="1";
WHEN j=2 THEN SET str_j="2";
WHEN j=3 THEN SET str_j="3";
ELSE SET str_j="unknown";
END CASE;
select "i was 20";
END;
WHEN 30 THEN SET str_i="30";
WHEN 40 THEN SET str_i="40";
ELSE SET str_i="unknown";
END CASE;
SELECT str_i, str_j;
END|
CREATE PROCEDURE proc_19194_nested_2(i int, j int)
BEGIN
DECLARE str_i CHAR(10);
DECLARE str_j CHAR(10);
CASE
WHEN i=10 THEN SET str_i="10";
WHEN i=20 THEN
BEGIN
set str_i="20";
CASE j
WHEN 1 THEN SET str_j="1";
WHEN 2 THEN SET str_j="2";
WHEN 3 THEN SET str_j="3";
ELSE SET str_j="unknown";
END CASE;
select "i was 20";
END;
WHEN i=30 THEN SET str_i="30";
WHEN i=40 THEN SET str_i="40";
ELSE SET str_i="unknown";
END CASE;
SELECT str_i, str_j;
END|
CREATE PROCEDURE proc_19194_nested_3(i int, j int)
BEGIN
DECLARE str_i CHAR(10);
DECLARE str_j CHAR(10);
CASE i
WHEN 10 THEN SET str_i="10";
WHEN 20 THEN
BEGIN
set str_i="20";
CASE j
WHEN 1 THEN SET str_j="1";
WHEN 2 THEN SET str_j="2";
WHEN 3 THEN SET str_j="3";
ELSE SET str_j="unknown";
END CASE;
select "i was 20";
END;
WHEN 30 THEN SET str_i="30";
WHEN 40 THEN SET str_i="40";
ELSE SET str_i="unknown";
END CASE;
SELECT str_i, str_j;
END|
CREATE PROCEDURE proc_19194_nested_4(i int, j int)
BEGIN
DECLARE str_i CHAR(10);
DECLARE str_j CHAR(10);
CASE
WHEN i=10 THEN SET str_i="10";
WHEN i=20 THEN
BEGIN
set str_i="20";
CASE
WHEN j=1 THEN SET str_j="1";
WHEN j=2 THEN SET str_j="2";
WHEN j=3 THEN SET str_j="3";
ELSE SET str_j="unknown";
END CASE;
select "i was 20";
END;
WHEN i=30 THEN SET str_i="30";
WHEN i=40 THEN SET str_i="40";
ELSE SET str_i="unknown";
END CASE;
SELECT str_i, str_j;
END|
SHOW PROCEDURE CODE proc_19194_simple;
Pos	Instruction
0	set str@1 NULL
1	set_case_expr (12) 0 i@0
2	jump_if_not 5(12) (case_expr@0 = 1)
3	set str@1 '1'
4	jump 12
5	jump_if_not 8(12) (case_expr@0 = 2)
6	set str@1 '2'
7	jump 12
8	jump_if_not 11(12) (case_expr@0 = 3)
9	set str@1 '3'
10	jump 12
11	set str@1 'unknown'
12	stmt 0 "SELECT str"
SHOW PROCEDURE CODE proc_19194_searched;
Pos	Instruction
0	set str@1 NULL
1	jump_if_not 4(11) (i@0 = 1)
2	set str@1 '1'
3	jump 11
4	jump_if_not 7(11) (i@0 = 2)
5	set str@1 '2'
6	jump 11
7	jump_if_not 10(11) (i@0 = 3)
8	set str@1 '3'
9	jump 11
10	set str@1 'unknown'
11	stmt 0 "SELECT str"
SHOW PROCEDURE CODE proc_19194_nested_1;
Pos	Instruction
0	set str_i@2 NULL
1	set str_j@3 NULL
2	set_case_expr (27) 0 i@0
3	jump_if_not 6(27) (case_expr@0 = 10)
4	set str_i@2 '10'
5	jump 27
6	jump_if_not 20(27) (case_expr@0 = 20)
7	set str_i@2 '20'
8	jump_if_not 11(18) (j@1 = 1)
9	set str_j@3 '1'
10	jump 18
11	jump_if_not 14(18) (j@1 = 2)
12	set str_j@3 '2'
13	jump 18
14	jump_if_not 17(18) (j@1 = 3)
15	set str_j@3 '3'
16	jump 18
17	set str_j@3 'unknown'
18	stmt 0 "select "i was 20""
19	jump 27
20	jump_if_not 23(27) (case_expr@0 = 30)
21	set str_i@2 '30'
22	jump 27
23	jump_if_not 26(27) (case_expr@0 = 40)
24	set str_i@2 '40'
25	jump 27
26	set str_i@2 'unknown'
27	stmt 0 "SELECT str_i, str_j"
SHOW PROCEDURE CODE proc_19194_nested_2;
Pos	Instruction
0	set str_i@2 NULL
1	set str_j@3 NULL
2	jump_if_not 5(27) (i@0 = 10)
3	set str_i@2 '10'
4	jump 27
5	jump_if_not 20(27) (i@0 = 20)
6	set str_i@2 '20'
7	set_case_expr (18) 0 j@1
8	jump_if_not 11(18) (case_expr@0 = 1)
9	set str_j@3 '1'
10	jump 18
11	jump_if_not 14(18) (case_expr@0 = 2)
12	set str_j@3 '2'
13	jump 18
14	jump_if_not 17(18) (case_expr@0 = 3)
15	set str_j@3 '3'
16	jump 18
17	set str_j@3 'unknown'
18	stmt 0 "select "i was 20""
19	jump 27
20	jump_if_not 23(27) (i@0 = 30)
21	set str_i@2 '30'
22	jump 27
23	jump_if_not 26(27) (i@0 = 40)
24	set str_i@2 '40'
25	jump 27
26	set str_i@2 'unknown'
27	stmt 0 "SELECT str_i, str_j"
SHOW PROCEDURE CODE proc_19194_nested_3;
Pos	Instruction
0	set str_i@2 NULL
1	set str_j@3 NULL
2	set_case_expr (28) 0 i@0
3	jump_if_not 6(28) (case_expr@0 = 10)
4	set str_i@2 '10'
5	jump 28
6	jump_if_not 21(28) (case_expr@0 = 20)
7	set str_i@2 '20'
8	set_case_expr (19) 1 j@1
9	jump_if_not 12(19) (case_expr@1 = 1)
10	set str_j@3 '1'
11	jump 19
12	jump_if_not 15(19) (case_expr@1 = 2)
13	set str_j@3 '2'
14	jump 19
15	jump_if_not 18(19) (case_expr@1 = 3)
16	set str_j@3 '3'
17	jump 19
18	set str_j@3 'unknown'
19	stmt 0 "select "i was 20""
20	jump 28
21	jump_if_not 24(28) (case_expr@0 = 30)
22	set str_i@2 '30'
23	jump 28
24	jump_if_not 27(28) (case_expr@0 = 40)
25	set str_i@2 '40'
26	jump 28
27	set str_i@2 'unknown'
28	stmt 0 "SELECT str_i, str_j"
SHOW PROCEDURE CODE proc_19194_nested_4;
Pos	Instruction
0	set str_i@2 NULL
1	set str_j@3 NULL
2	jump_if_not 5(26) (i@0 = 10)
3	set str_i@2 '10'
4	jump 26
5	jump_if_not 19(26) (i@0 = 20)
6	set str_i@2 '20'
7	jump_if_not 10(17) (j@1 = 1)
8	set str_j@3 '1'
9	jump 17
10	jump_if_not 13(17) (j@1 = 2)
11	set str_j@3 '2'
12	jump 17
13	jump_if_not 16(17) (j@1 = 3)
14	set str_j@3 '3'
15	jump 17
16	set str_j@3 'unknown'
17	stmt 0 "select "i was 20""
18	jump 26
19	jump_if_not 22(26) (i@0 = 30)
20	set str_i@2 '30'
21	jump 26
22	jump_if_not 25(26) (i@0 = 40)
23	set str_i@2 '40'
24	jump 26
25	set str_i@2 'unknown'
26	stmt 0 "SELECT str_i, str_j"
CALL proc_19194_nested_1(10, 1);
str_i	str_j
10	NULL
CALL proc_19194_nested_1(25, 1);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_1(20, 1);
i was 20
i was 20
str_i	str_j
20	1
CALL proc_19194_nested_1(20, 2);
i was 20
i was 20
str_i	str_j
20	2
CALL proc_19194_nested_1(20, 3);
i was 20
i was 20
str_i	str_j
20	3
CALL proc_19194_nested_1(20, 4);
i was 20
i was 20
str_i	str_j
20	unknown
CALL proc_19194_nested_1(30, 1);
str_i	str_j
30	NULL
CALL proc_19194_nested_1(40, 1);
str_i	str_j
40	NULL
CALL proc_19194_nested_1(0, 0);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_2(10, 1);
str_i	str_j
10	NULL
CALL proc_19194_nested_2(25, 1);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_2(20, 1);
i was 20
i was 20
str_i	str_j
20	1
CALL proc_19194_nested_2(20, 2);
i was 20
i was 20
str_i	str_j
20	2
CALL proc_19194_nested_2(20, 3);
i was 20
i was 20
str_i	str_j
20	3
CALL proc_19194_nested_2(20, 4);
i was 20
i was 20
str_i	str_j
20	unknown
CALL proc_19194_nested_2(30, 1);
str_i	str_j
30	NULL
CALL proc_19194_nested_2(40, 1);
str_i	str_j
40	NULL
CALL proc_19194_nested_2(0, 0);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_3(10, 1);
str_i	str_j
10	NULL
CALL proc_19194_nested_3(25, 1);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_3(20, 1);
i was 20
i was 20
str_i	str_j
20	1
CALL proc_19194_nested_3(20, 2);
i was 20
i was 20
str_i	str_j
20	2
CALL proc_19194_nested_3(20, 3);
i was 20
i was 20
str_i	str_j
20	3
CALL proc_19194_nested_3(20, 4);
i was 20
i was 20
str_i	str_j
20	unknown
CALL proc_19194_nested_3(30, 1);
str_i	str_j
30	NULL
CALL proc_19194_nested_3(40, 1);
str_i	str_j
40	NULL
CALL proc_19194_nested_3(0, 0);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_4(10, 1);
str_i	str_j
10	NULL
CALL proc_19194_nested_4(25, 1);
str_i	str_j
unknown	NULL
CALL proc_19194_nested_4(20, 1);
i was 20
i was 20
str_i	str_j
20	1
CALL proc_19194_nested_4(20, 2);
i was 20
i was 20
str_i	str_j
20	2
CALL proc_19194_nested_4(20, 3);
i was 20
i was 20
str_i	str_j
20	3
CALL proc_19194_nested_4(20, 4);
i was 20
i was 20
str_i	str_j
20	unknown
CALL proc_19194_nested_4(30, 1);
str_i	str_j
30	NULL
CALL proc_19194_nested_4(40, 1);
str_i	str_j
40	NULL
CALL proc_19194_nested_4(0, 0);
str_i	str_j
unknown	NULL
DROP PROCEDURE proc_19194_simple;
DROP PROCEDURE proc_19194_searched;
DROP PROCEDURE proc_19194_nested_1;
DROP PROCEDURE proc_19194_nested_2;
DROP PROCEDURE proc_19194_nested_3;
DROP PROCEDURE proc_19194_nested_4;
DROP PROCEDURE IF EXISTS p1;
CREATE PROCEDURE p1() CREATE INDEX idx ON t1 (c1);
SHOW PROCEDURE CODE p1;
Pos	Instruction
0	stmt 2 "CREATE INDEX idx ON t1 (c1)"
DROP PROCEDURE p1;
drop table if exists t1;
drop procedure if exists proc_26977_broken;
drop procedure if exists proc_26977_works;
create table t1(a int unique);
create procedure proc_26977_broken(v int)
begin
declare i int default 5;
declare continue handler for sqlexception
begin
select 'caught something';
retry:
while i > 0 do
begin
set i = i - 1;
select 'looping', i;
end;
end while retry;
end;
select 'do something';
insert into t1 values (v);
select 'do something again';
insert into t1 values (v);
end//
create procedure proc_26977_works(v int)
begin
declare i int default 5;
declare continue handler for sqlexception
begin
select 'caught something';
retry:
while i > 0 do
begin
set i = i - 1;
select 'looping', i;
end;
end while retry;
select 'optimizer: keep hreturn';
end;
select 'do something';
insert into t1 values (v);
select 'do something again';
insert into t1 values (v);
end//
show procedure code proc_26977_broken;
Pos	Instruction
0	set i@1 5
1	hpush_jump 8 2 CONTINUE
2	stmt 0 "select 'caught something'"
3	jump_if_not 7(7) (i@1 > 0)
4	set i@1 (i@1 - 1)
5	stmt 0 "select 'looping', i"
6	jump 3
7	hreturn 2
8	stmt 0 "select 'do something'"
9	stmt 5 "insert into t1 values (v)"
10	stmt 0 "select 'do something again'"
11	stmt 5 "insert into t1 values (v)"
12	hpop 1
show procedure code proc_26977_works;
Pos	Instruction
0	set i@1 5
1	hpush_jump 9 2 CONTINUE
2	stmt 0 "select 'caught something'"
3	jump_if_not 7(7) (i@1 > 0)
4	set i@1 (i@1 - 1)
5	stmt 0 "select 'looping', i"
6	jump 3
7	stmt 0 "select 'optimizer: keep hreturn'"
8	hreturn 2
9	stmt 0 "select 'do something'"
10	stmt 5 "insert into t1 values (v)"
11	stmt 0 "select 'do something again'"
12	stmt 5 "insert into t1 values (v)"
13	hpop 1
call proc_26977_broken(1);
do something
do something
do something again
do something again
caught something
caught something
looping	i
looping	4
looping	i
looping	3
looping	i
looping	2
looping	i
looping	1
looping	i
looping	0
call proc_26977_works(2);
do something
do something
do something again
do something again
caught something
caught something
looping	i
looping	4
looping	i
looping	3
looping	i
looping	2
looping	i
looping	1
looping	i
looping	0
optimizer: keep hreturn
optimizer: keep hreturn
drop table t1;
drop procedure proc_26977_broken;
drop procedure proc_26977_works;
drop procedure if exists proc_33618_h;
drop procedure if exists proc_33618_c;
create procedure proc_33618_h(num int)
begin
declare count1 int default '0';
declare vb varchar(30);
declare last_row int;
while(num>=1) do
set num=num-1;
begin
declare cur1 cursor for select `a` from t_33618;
declare continue handler for not found set last_row = 1;
set last_row:=0;
open cur1;
rep1:
repeat
begin
declare exit handler for 1062 begin end;
fetch cur1 into vb;
if (last_row = 1) then
## should generate a hpop instruction here
leave rep1;
end if;
end;
until last_row=1
end repeat;
close cur1;
end;
end while;
end//
create procedure proc_33618_c(num int)
begin
declare count1 int default '0';
declare vb varchar(30);
declare last_row int;
while(num>=1) do
set num=num-1;
begin
declare cur1 cursor for select `a` from t_33618;
declare continue handler for not found set last_row = 1;
set last_row:=0;
open cur1;
rep1:
repeat
begin
declare cur2 cursor for select `b` from t_33618;
fetch cur1 into vb;
if (last_row = 1) then
## should generate a cpop instruction here
leave rep1;
end if;
end;
until last_row=1
end repeat;
close cur1;
end;
end while;
end//
show procedure code proc_33618_h;
Pos	Instruction
0	set count1@1 '0'
1	set vb@2 NULL
2	set last_row@3 NULL
3	jump_if_not 24(24) (num@0 >= 1)
4	set num@0 (num@0 - 1)
5	cpush cur1@0
6	hpush_jump 9 4 CONTINUE
7	set last_row@3 1
8	hreturn 4
9	set last_row@3 0
10	copen cur1@0
11	hpush_jump 13 4 EXIT
12	hreturn 0 17
13	cfetch cur1@0 vb@2
14	jump_if_not 17(17) (last_row@3 = 1)
15	hpop 1
16	jump 19
17	hpop 1
18	jump_if_not 11(19) (last_row@3 = 1)
19	cclose cur1@0
20	hpop 1
21	cpop 1
22	jump 3
show procedure code proc_33618_c;
Pos	Instruction
0	set count1@1 '0'
1	set vb@2 NULL
2	set last_row@3 NULL
3	jump_if_not 23(23) (num@0 >= 1)
4	set num@0 (num@0 - 1)
5	cpush cur1@0
6	hpush_jump 9 4 CONTINUE
7	set last_row@3 1
8	hreturn 4
9	set last_row@3 0
10	copen cur1@0
11	cpush cur2@1
12	cfetch cur1@0 vb@2
13	jump_if_not 16(16) (last_row@3 = 1)
14	cpop 1
15	jump 18
16	cpop 1
17	jump_if_not 11(18) (last_row@3 = 1)
18	cclose cur1@0
19	hpop 1
20	cpop 1
21	jump 3
drop procedure proc_33618_h;
drop procedure proc_33618_c;
drop procedure if exists p_20906_a;
drop procedure if exists p_20906_b;
create procedure p_20906_a() SET @a=@a+1, @b=@b+1;
show procedure code p_20906_a;
Pos	Instruction
0	stmt 31 "SET @a=@a+1"
1	stmt 31 "SET  @b=@b+1"
set @a=1;
set @b=1;
call p_20906_a();
select @a, @b;
@a	@b
2	2
create procedure p_20906_b() SET @a=@a+1, @b=@b+1, @c=@c+1;
show procedure code p_20906_b;
Pos	Instruction
0	stmt 31 "SET @a=@a+1"
1	stmt 31 "SET  @b=@b+1"
2	stmt 31 "SET  @c=@c+1"
set @a=1;
set @b=1;
set @c=1;
call p_20906_b();
select @a, @b, @c;
@a	@b	@c
2	2	2
drop procedure p_20906_a;
drop procedure p_20906_b;
End of 5.0 tests.
CREATE PROCEDURE p1() 
BEGIN 
DECLARE dummy int default 0;
CASE 12 
WHEN 12 
THEN SET dummy = 0;
END CASE;
END//
SHOW PROCEDURE CODE p1;
Pos	Instruction
0	set dummy@0 0
1	set_case_expr (6) 0 12
2	jump_if_not 5(6) (case_expr@0 = 12)
3	set dummy@0 0
4	jump 6
5	error 1339
DROP PROCEDURE p1;
