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Commit 481bb717 authored by pem@mysql.com's avatar pem@mysql.com
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Disabled the GOTO feature. (It's non-standard and undocumented.) 

We want to have the defacto standard syntax for labels ("L:" instead of "label L;"),
and fix some known bugs, before we enable this again.
The code is left intact (#ifdef'ed SP_GOTO) and the test cases are kept in
sp-goto.test, for the future...
parent b590f0de
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Inline Side-by-side
Showing with 461 additions and 403 deletions
mysql-test/r/sp-error.result
View file @ 481bb717
......@@ -65,47 +65,6 @@ iterate foo;
end|
ERROR 42000: ITERATE with no matching label: foo
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 foo()
foo: loop
foo: loop
set @x=2;
......@@ -308,16 +267,6 @@ declare continue handler for sqlstate '42S99' set x = 1;
declare c cursor for select * from t1;
end|
ERROR 42000: Cursor declaration after handler declaration
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 p|
create procedure p(in x int, inout y int, out z int)
begin
......
mysql-test/r/sp-goto.result 0 → 100644
View file @ 481bb717
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;
mysql-test/r/sp.result
View file @ 481bb717
......@@ -438,145 +438,6 @@ id data
i 3
delete from t1|
drop procedure i|
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|
insert into t1 values ("foo", 3), ("bar", 19)|
insert into t2 values ("x", 9, 4.1), ("y", -1, 19.2), ("z", 3, 2.2)|
drop procedure if exists sel1|
......@@ -2971,15 +2832,6 @@ select @x|
set global query_cache_size = @qcs1|
delete from t1|
drop function bug9902|
drop procedure if exists bug6898|
create procedure bug6898()
begin
goto label1;
label label1;
begin end;
goto label1;
end|
drop procedure bug6898|
drop function if exists bug9102|
create function bug9102() returns blob return 'a'|
select bug9102()|
......
mysql-test/t/disabled.def
View file @ 481bb717
......@@ -10,3 +10,4 @@
#
##############################################################################
sp-goto:GOTO is currently is disabled - will be fixed in the future
mysql-test/t/sp-error.test
View file @ 481bb717
......@@ -84,7 +84,7 @@ show create procedure foo|
--error 1305
show create function foo|
# LEAVE/ITERATE/GOTO with no match
# LEAVE/ITERATE with no match
--error 1308
create procedure foo()
foo: loop
......@@ -100,47 +100,6 @@ create procedure foo()
foo: begin
iterate foo;
end|
--error 1308
create procedure foo()
begin
goto foo;
end|
--error 1308
create procedure foo()
begin
begin
label foo;
end;
goto foo;
end|
--error 1308
create procedure foo()
begin
goto foo;
begin
label foo;
end;
end|
--error 1308
create procedure foo()
begin
begin
goto foo;
end;
begin
label foo;
end;
end|
--error 1308
create procedure foo()
begin
begin
label foo;
end;
begin
goto foo;
end;
end|
# Redefining label
--error 1309
......@@ -398,18 +357,6 @@ begin
declare c cursor for select * from t1;
end|
--error 1358
create procedure p()
begin
declare continue handler for sqlexception
begin
goto L1;
end;
select field from t1;
label L1;
end|
# Check in and inout arguments.
--disable_warnings
drop procedure if exists p|
......
mysql-test/t/sp-goto.test 0 → 100644
View file @ 481bb717
#
# The non-standard GOTO, for compatibility
#
# QQQ The "label" syntax is temporary, it will (hopefully)
# change to the more common "L:" syntax soon.
# For the time being, this feature is disabled, until
# the syntax (and some other known bugs) can be fixed.
#
# Test cases for bugs are added at the end. See template there.
#
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (
id char(16) not null default '',
data int not null
);
delimiter //;
--disable_warnings
drop procedure if exists goto1//
--enable_warnings
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()//
drop procedure goto1//
# With dummy handlers, just to test restore of contexts with jumps
--disable_warnings
drop procedure if exists goto2//
--enable_warnings
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)//
call goto2(1)//
call goto2(2)//
drop procedure goto2//
delete from t1//
# Check label visibility for some more cases. We don't call these.
--disable_warnings
drop procedure if exists goto3//
--enable_warnings
create procedure goto3()
begin
label L1;
begin
end;
goto L1;
end//
drop procedure goto3//
--disable_warnings
drop procedure if exists goto4//
--enable_warnings
create procedure goto4()
begin
begin
label lab1;
begin
goto lab1;
end;
end;
end//
drop procedure goto4//
--disable_warnings
drop procedure if exists goto5//
--enable_warnings
create procedure goto5()
begin
begin
begin
goto lab1;
end;
label lab1;
end;
end//
drop procedure goto5//
--disable_warnings
drop procedure if exists goto6//
--enable_warnings
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//
# Mismatching labels
--error 1308
create procedure foo()
begin
goto foo;
end//
--error 1308
create procedure foo()
begin
begin
label foo;
end;
goto foo;
end//
--error 1308
create procedure foo()
begin
goto foo;
begin
label foo;
end;
end//
--error 1308
create procedure foo()
begin
begin
goto foo;
end;
begin
label foo;
end;
end//
--error 1308
create procedure foo()
begin
begin
label foo;
end;
begin
goto foo;
end;
end//
# No goto in a handler
--error 1358
create procedure p()
begin
declare continue handler for sqlexception
begin
goto L1;
end;
select field from t1;
label L1;
end//
#
# Test cases for old bugs
#
#
# BUG#6898: Stored procedure crash if GOTO statements exist
#
--disable_warnings
drop procedure if exists bug6898//
--enable_warnings
create procedure bug6898()
begin
goto label1;
label label1;
begin end;
goto label1;
end//
drop procedure bug6898//
#
# BUG#NNNN: New bug synopsis
#
#--disable_warnings
#drop procedure if exists bugNNNN//
#--enable_warnings
#create procedure bugNNNN...
# Add bugs above this line. Use existing tables t1 and t2 when
# practical, or create table t3, t4 etc temporarily (and drop them).
delimiter ;//
drop table t1;
mysql-test/t/sp.test
View file @ 481bb717
......@@ -12,6 +12,7 @@
# Tests that check privilege and security issues go to sp-security.test.
# Tests that require multiple connections, except security/privilege tests,
# go to sp-thread.
# Tests that uses 'goto' to into sp-goto.test (currently disabled)
use test;
......@@ -585,139 +586,6 @@ delete from t1|
drop procedure i|
# The non-standard GOTO, for compatibility
#
# QQQ The "label" syntax is temporary, it will (hopefully)
# change to the more common "L:" syntax soon.
#
--disable_warnings
drop procedure if exists goto1|
--enable_warnings
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()|
drop procedure goto1|
# With dummy handlers, just to test restore of contexts with jumps
--disable_warnings
drop procedure if exists goto2|
--enable_warnings
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)|
call goto2(1)|
call goto2(2)|
drop procedure goto2|
delete from t1|
# Check label visibility for some more cases. We don't call these.
--disable_warnings
drop procedure if exists goto3|
--enable_warnings
create procedure goto3()
begin
label L1;
begin
end;
goto L1;
end|
drop procedure goto3|
--disable_warnings
drop procedure if exists goto4|
--enable_warnings
create procedure goto4()
begin
begin
label lab1;
begin
goto lab1;
end;
end;
end|
drop procedure goto4|
--disable_warnings
drop procedure if exists goto5|
--enable_warnings
create procedure goto5()
begin
begin
begin
goto lab1;
end;
label lab1;
end;
end|
drop procedure goto5|
--disable_warnings
drop procedure if exists goto6|
--enable_warnings
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|
# SELECT with one of more result set sent back to the clinet
insert into t1 values ("foo", 3), ("bar", 19)|
insert into t2 values ("x", 9, 4.1), ("y", -1, 19.2), ("z", 3, 2.2)|
......@@ -3634,22 +3502,6 @@ delete from t1|
drop function bug9902|
#
# BUG#6898: Stored procedure crash if GOTO statements exist
#
--disable_warnings
drop procedure if exists bug6898|
--enable_warnings
create procedure bug6898()
begin
goto label1;
label label1;
begin end;
goto label1;
end|
drop procedure bug6898|
#
# BUG#9102: Stored proccedures: function which returns blob causes crash
#
......
sql/lex.h
View file @ 481bb717
......@@ -214,7 +214,9 @@ static SYMBOL symbols[] = {
{ "GEOMETRYCOLLECTION",SYM(GEOMETRYCOLLECTION)},
{ "GET_FORMAT", SYM(GET_FORMAT)},
{ "GLOBAL", SYM(GLOBAL_SYM)},
#ifdef SP_GOTO
{ "GOTO", SYM(GOTO_SYM)},
#endif
{ "GRANT", SYM(GRANT)},
{ "GRANTS", SYM(GRANTS)},
{ "GROUP", SYM(GROUP)},
......@@ -262,7 +264,10 @@ static SYMBOL symbols[] = {
{ "KEY", SYM(KEY_SYM)},
{ "KEYS", SYM(KEYS)},
{ "KILL", SYM(KILL_SYM)},
#ifdef SP_GOTO
/* QQ This will go away when the GOTO label syntax is fixed */
{ "LABEL", SYM(LABEL_SYM)},
#endif
{ "LANGUAGE", SYM(LANGUAGE_SYM)},
{ "LAST", SYM(LAST_SYM)},
{ "LEADING", SYM(LEADING)},
......
sql/sql_yacc.yy
View file @ 481bb717
......@@ -2113,6 +2113,7 @@ sp_proc_stmt:
}
| LABEL_SYM IDENT
{
#ifdef SP_GOTO
LEX *lex= Lex;
sp_head *sp= lex->sphead;
sp_pcontext *ctx= lex->spcont;
......@@ -2130,9 +2131,14 @@ sp_proc_stmt:
lab->ctx= ctx;
sp->backpatch(lab);
}
#else
yyerror(ER(ER_SYNTAX_ERROR));
YYABORT;
#endif
}
| GOTO_SYM IDENT
{
#ifdef SP_GOTO
LEX *lex= Lex;
sp_head *sp= lex->sphead;
sp_pcontext *ctx= lex->spcont;
......@@ -2185,6 +2191,10 @@ sp_proc_stmt:
i= new sp_instr_jump(ip, ctx, lab->ip); /* Jump back */
sp->add_instr(i);
}
#else
yyerror(ER(ER_SYNTAX_ERROR));
YYABORT;
#endif
}
| OPEN_SYM ident
{
......@@ -7437,7 +7447,6 @@ keyword:
| INNOBASE_SYM {}
| INSERT_METHOD {}
| RELAY_THREAD {}
| LABEL_SYM {}
| LANGUAGE_SYM {}
| LAST_SYM {}
| LEAVES {}
......
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