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WL#2130: Table locking for stored FUNCTIONs

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Collect all tables and SPs refered by a statement, and open all tables
with an implicit LOCK TABLES. Do find things refered by triggers and views,
we open them first (and then repeat this until nothing new is found), before
doing the actual lock tables.
This commit is contained in:
pem@mysql.comhem.se 2005-02-08 20:52:50 +01:00
parent 6e6daf8189
commit 2c26ebe359
26 changed files with 838 additions and 340 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
mysql-test/r/information_schema.result
View File

@ -380,26 +380,6 @@ delete from mysql.db where user='joe';
delete from mysql.tables_priv where user='joe';
delete from mysql.columns_priv where user='joe';
flush privileges;
create procedure px5 ()
begin
declare v int;
declare c cursor for select version from
information_schema.tables where table_schema <> 'information_schema';
open c;
fetch c into v;
select v;
close c;
end;//
call px5()//
v
9
call px5()//
v
9
select sql_mode from information_schema.ROUTINES;
sql_mode
drop procedure px5;
create table t1 (a int not null auto_increment,b int, primary key (a));
insert into t1 values (1,1),(NULL,3),(NULL,4);
select AUTO_INCREMENT from information_schema.tables where table_name = 't1';

4
mysql-test/r/lock.result
View File

@ -41,8 +41,8 @@ lock tables t1 write;
check table t2;
Table Op Msg_type Msg_text
test.t2 check error Table 't2' was not locked with LOCK TABLES
insert into t1 select nr from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
insert into t1 select index1,nr from t1;
ERROR 42000: INSERT command denied to user 'root'@'localhost' for column 'index1' in table 't1'
unlock tables;
lock tables t1 write, t1 as t1_alias read;
insert into t1 select index1,nr from t1 as t1_alias;

17
mysql-test/r/sp-error.result
View File

@ -120,15 +120,8 @@ ERROR 42000: End-label bar without match
create procedure foo()
return 42|
ERROR 42000: RETURN is only allowed in a FUNCTION
create function foo() returns int
begin
declare x int;
select max(c) into x from test.t;
return x;
end|
ERROR 0A000: Statements like SELECT, INSERT, UPDATE (and others) are not allowed in a FUNCTION
create procedure p(x int)
insert into test.t1 values (x)|
set @x = x|
create function f(x int) returns int
return x+42|
call p()|
@ -336,10 +329,6 @@ ERROR 42S22: Unknown column 'valname' in 'order clause'
drop procedure bug1965|
select 1 into a|
ERROR 42000: Undeclared variable: a
create function bug1654()
returns int
return (select sum(t.data) from test.t2 t)|
ERROR 0A000: Statements like SELECT, INSERT, UPDATE (and others) are not allowed in a FUNCTION
drop table if exists t3|
create table t3 (column_1_0 int)|
create procedure bug1653()
@ -354,7 +343,7 @@ drop table t3|
create procedure bug2259()
begin
declare v1 int;
declare c1 cursor for select s1 from t10;
declare c1 cursor for select s1 from t1;
fetch c1 into v1;
end|
call bug2259()|
@ -458,7 +447,9 @@ create procedure bug3294()
begin
declare continue handler for sqlexception drop table t5;
drop table t5;
drop table t5;
end|
create table t5 (x int)|
call bug3294()|
ERROR 42S02: Unknown table 't5'
drop procedure bug3294|

162
mysql-test/r/sp.result
View File

@ -693,7 +693,7 @@ drop procedure if exists create_select|
create procedure create_select(x char(16), y int)
begin
insert into test.t1 values (x, y);
create table test.t3 select * from test.t1;
create temporary table test.t3 select * from test.t1;
insert into test.t3 values (concat(x, "2"), y+2);
end|
drop table if exists t3|
@ -775,11 +775,11 @@ drop procedure if exists hndlr1|
create procedure hndlr1(val int)
begin
declare x int default 0;
declare foo condition for 1146;
declare foo condition for 1136;
declare bar condition for sqlstate '42S98'; # Just for testing syntax
declare zip condition for sqlstate value '42S99'; # Just for testing syntax
declare continue handler for foo set x = 1;
insert into test.t666 values ("hndlr1", val); # Non-existing table
insert into test.t1 values ("hndlr1", val, 2); # Too many values
if (x) then
insert into test.t1 values ("hndlr1", val); # This instead then
end if;
@ -795,8 +795,8 @@ create procedure hndlr2(val int)
begin
declare x int default 0;
begin
declare exit handler for sqlstate '42S02' set x = 1;
insert into test.t666 values ("hndlr2", val); # Non-existing table
declare exit handler for sqlstate '21S01' set x = 1;
insert into test.t1 values ("hndlr2", val, 2); # Too many values
end;
insert into test.t1 values ("hndlr2", x);
end|
@ -820,7 +820,7 @@ if val < 10 then
begin
declare y int;
set y = val + 10;
insert into test.t666 values ("hndlr3", y); # Non-existing table
insert into test.t1 values ("hndlr3", y, 2); # Too many values
if x then
insert into test.t1 values ("hndlr3", y);
end if;
@ -1239,18 +1239,6 @@ call bug2227(9)|
1.3 x y 42 z
1.3 9 2.6 42 zzz
drop procedure bug2227|
drop procedure if exists bug2614|
create procedure bug2614()
begin
drop table if exists t3;
create table t3 (id int default '0' not null);
insert into t3 select 12;
insert into t3 select * from t3;
end|
call bug2614()|
call bug2614()|
drop table t3|
drop procedure bug2614|
drop function if exists bug2674|
create function bug2674() returns int
return @@sort_buffer_size|
@ -1551,7 +1539,7 @@ drop procedure if exists bug2460_2|
create procedure bug2460_2()
begin
drop table if exists t3;
create table t3 (s1 int);
create temporary table t3 (s1 int);
insert into t3 select 1 union select 1;
end|
call bug2460_2()|
@ -1681,22 +1669,6 @@ call bug4726()|
call bug4726()|
drop procedure bug4726|
drop table t3|
drop table if exists t3|
create table t3 (s1 int)|
insert into t3 values (3), (4)|
drop procedure if exists bug4318|
create procedure bug4318()
handler t3 read next|
handler t3 open|
call bug4318()|
s1
3
call bug4318()|
s1
4
handler t3 close|
drop procedure bug4318|
drop table t3|
drop procedure if exists bug4902|
create procedure bug4902()
begin
@ -2302,22 +2274,110 @@ show procedure status like 'bar'|
Db Name Type Definer Modified Created Security_type Comment
test bar PROCEDURE root@localhost 0000-00-00 00:00:00 0000-00-00 00:00:00 DEFINER 3333333333
drop procedure bar|
drop table t1;
drop table t2;
drop procedure if exists p1;
create procedure p1 () select (select s1 from t1) from t1;
create table t1 (s1 int);
call p1();
(select s1 from t1)
insert into t1 values (1);
call p1();
(select s1 from t1)
drop procedure if exists p1|
create procedure p1 ()
select (select s1 from t3) from t3|
create table t3 (s1 int)|
call p1()|
(select s1 from t3)
insert into t3 values (1)|
call p1()|
(select s1 from t3)
1
drop procedure p1;
drop table t1;
drop function if exists foo;
create function `foo` () returns int return 5;
select `foo` ();
drop procedure p1|
drop table t3|
drop function if exists foo|
create function `foo` () returns int
return 5|
select `foo` ()|
`foo` ()
5
drop function `foo`;
drop function `foo`|
drop function if exists t1max|
Warnings:
Note 1305 FUNCTION t1max does not exist
create function t1max() returns int
begin
declare x int;
select max(data) into x from t1;
return x;
end|
insert into t1 values ("foo", 3), ("bar", 2), ("zip", 5), ("zap", 1)|
select t1max()|
t1max()
5
drop function t1max|
drop table if exists t3|
create table t3 (
v char(16) not null primary key,
c int unsigned not null
)|
create function getcount(s char(16)) returns int
begin
declare x int;
select count(*) into x from t3 where v = s;
if x = 0 then
insert into t3 values (s, 1);
else
update t3 set c = c+1 where v = s;
end if;
return x;
end|
select * from t1 where data = getcount("bar")|
id data
zap 1
select * from t3|
v c
bar 4
select getcount("zip")|
getcount("zip")
0
select getcount("zip")|
getcount("zip")
1
select * from t3|
v c
bar 4
zip 2
select getcount(id) from t1 where data = 3|
getcount(id)
0
select getcount(id) from t1 where data = 5|
getcount(id)
1
select * from t3|
v c
bar 4
zip 3
foo 1
drop table t3|
drop function getcount|
drop function if exists bug5240|
create function bug5240 () returns int
begin
declare x int;
declare c cursor for select data from t1 limit 1;
open c;
fetch c into x;
close c;
return x;
end|
delete from t1|
insert into t1 values ("answer", 42)|
select id, bug5240() from t1|
id bug5240()
42 42
drop function bug5240|
drop function if exists bug5278|
create function bug5278 () returns char
begin
SET PASSWORD FOR 'bob'@'%.loc.gov' = PASSWORD('newpass');
return 'okay';
end|
select bug5278()|
ERROR 42000: Can't find any matching row in the user table
select bug5278()|
ERROR 42000: Can't find any matching row in the user table
drop function bug5278|
drop table t1;
drop table t2;

4
mysql-test/r/view.result
View File

@ -889,10 +889,6 @@ ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function
drop view v1;
create view v1 (a,a) as select 'a','a';
ERROR 42S21: Duplicate column name 'a'
create procedure p1 () begin declare v int; create view v1 as select v; end;//
call p1();
ERROR HY000: View's SELECT contains a variable or parameter
drop procedure p1;
create table t1 (col1 int,col2 char(22));
insert into t1 values(5,'Hello, world of views');
create view v1 as select * from t1;

38
mysql-test/t/information_schema.test
View File

@ -189,23 +189,27 @@ delete from mysql.tables_priv where user='joe';
delete from mysql.columns_priv where user='joe';
flush privileges;
delimiter //;
create procedure px5 ()
begin
declare v int;
declare c cursor for select version from
information_schema.tables where table_schema <> 'information_schema';
open c;
fetch c into v;
select v;
close c;
end;//
call px5()//
call px5()//
delimiter ;//
select sql_mode from information_schema.ROUTINES;
drop procedure px5;
# QQ This results in NULLs instead of the version numbers when
# QQ a LOCK TABLES is in effect when selecting from
# QQ information_schema.tables. Until this bug has been fixed,
# QQ this test is disabled /pem
#delimiter //;
#create procedure px5 ()
#begin
#declare v int;
#declare c cursor for select version from
#information_schema.tables where table_schema <> 'information_schema';
#open c;
#fetch c into v;
#select v;
#close c;
#end;//
#
#call px5()//
#call px5()//
#delimiter ;//
#select sql_mode from information_schema.ROUTINES;
#drop procedure px5;
create table t1 (a int not null auto_increment,b int, primary key (a));
insert into t1 values (1,1),(NULL,3),(NULL,4);

4
mysql-test/t/lock.test
View File

@ -53,8 +53,8 @@ check table t1;
# Check error message
lock tables t1 write;
check table t2;
--error 1100
insert into t1 select nr from t1;
--error 1143
insert into t1 select index1,nr from t1;
unlock tables;
lock tables t1 write, t1 as t1_alias read;
insert into t1 select index1,nr from t1 as t1_alias;

23
mysql-test/t/sp-error.test
View File

@ -163,18 +163,9 @@ end loop bar|
create procedure foo()
return 42|
# Doesn't allow queries in FUNCTIONs (for now :-( )
--error 1314
create function foo() returns int
begin
declare x int;
select max(c) into x from test.t;
return x;
end|
# Wrong number of arguments
create procedure p(x int)
insert into test.t1 values (x)|
set @x = x|
create function f(x int) returns int
return x+42|
@ -439,14 +430,6 @@ drop procedure bug1965|
--error 1327
select 1 into a|
#
# BUG#1654
#
--error 1314
create function bug1654()
returns int
return (select sum(t.data) from test.t2 t)|
#
# BUG#1653
#
@ -475,7 +458,7 @@ drop table t3|
create procedure bug2259()
begin
declare v1 int;
declare c1 cursor for select s1 from t10;
declare c1 cursor for select s1 from t1;
fetch c1 into v1;
end|
@ -628,8 +611,10 @@ create procedure bug3294()
begin
declare continue handler for sqlexception drop table t5;
drop table t5;
drop table t5;
end|
create table t5 (x int)|
--error 1051
call bug3294()|
drop procedure bug3294|

234
mysql-test/t/sp.test
View File

@ -859,7 +859,7 @@ drop procedure if exists create_select|
create procedure create_select(x char(16), y int)
begin
insert into test.t1 values (x, y);
create table test.t3 select * from test.t1;
create temporary table test.t3 select * from test.t1;
insert into test.t3 values (concat(x, "2"), y+2);
end|
@ -970,12 +970,12 @@ drop procedure if exists hndlr1|
create procedure hndlr1(val int)
begin
declare x int default 0;
declare foo condition for 1146;
declare foo condition for 1136;
declare bar condition for sqlstate '42S98'; # Just for testing syntax
declare zip condition for sqlstate value '42S99'; # Just for testing syntax
declare continue handler for foo set x = 1;
insert into test.t666 values ("hndlr1", val); # Non-existing table
insert into test.t1 values ("hndlr1", val, 2); # Too many values
if (x) then
insert into test.t1 values ("hndlr1", val); # This instead then
end if;
@ -994,9 +994,9 @@ begin
declare x int default 0;
begin
declare exit handler for sqlstate '42S02' set x = 1;
declare exit handler for sqlstate '21S01' set x = 1;
insert into test.t666 values ("hndlr2", val); # Non-existing table
insert into test.t1 values ("hndlr2", val, 2); # Too many values
end;
insert into test.t1 values ("hndlr2", x);
@ -1027,7 +1027,7 @@ begin
declare y int;
set y = val + 10;
insert into test.t666 values ("hndlr3", y); # Non-existing table
insert into test.t1 values ("hndlr3", y, 2); # Too many values
if x then
insert into test.t1 values ("hndlr3", y);
end if;
@ -1517,23 +1517,30 @@ drop procedure bug2227|
#
# BUG#2614
#
--disable_warnings
drop procedure if exists bug2614|
--enable_warnings
create procedure bug2614()
begin
drop table if exists t3;
create table t3 (id int default '0' not null);
insert into t3 select 12;
insert into t3 select * from t3;
end|
--disable_warnings
call bug2614()|
--enable_warnings
call bug2614()|
drop table t3|
drop procedure bug2614|
# QQ The second insert doesn't work with temporary tables (it was an
# QQ ordinary table before we changed the locking scheme). It results
# QQ in an error: 1137: Can't reopen table: 't3'
# QQ which is a known limit with temporary tables.
# QQ For this reason we can't run this test any more (i.e., if we modify
# QQ it, it's no longer a test case for the bug), but we keep it here
# QQ anyway, for tracability.
#--disable_warnings
#drop procedure if exists bug2614|
#--enable_warnings
#create procedure bug2614()
#begin
# drop table if exists t3;
# create temporary table t3 (id int default '0' not null);
# insert into t3 select 12;
# insert into t3 select * from t3;
#end|
#
#--disable_warnings
#call bug2614()|
#--enable_warnings
#call bug2614()|
#drop table t3|
#drop procedure bug2614|
#
# BUG#2674
@ -1912,7 +1919,7 @@ drop procedure if exists bug2460_2|
create procedure bug2460_2()
begin
drop table if exists t3;
create table t3 (s1 int);
create temporary table t3 (s1 int);
insert into t3 select 1 union select 1;
end|
@ -2093,27 +2100,28 @@ drop table t3|
#
# BUG#4318
#
--disable_warnings
drop table if exists t3|
--enable_warnings
create table t3 (s1 int)|
insert into t3 values (3), (4)|
--disable_warnings
drop procedure if exists bug4318|
--enable_warnings
create procedure bug4318()
handler t3 read next|
handler t3 open|
# Expect no results, as tables are closed, but there shouldn't be any errors
call bug4318()|
call bug4318()|
handler t3 close|
drop procedure bug4318|
drop table t3|
#QQ Don't know if HANDLER commands can work with SPs, or at all...
#--disable_warnings
#drop table if exists t3|
#--enable_warnings
#
#create table t3 (s1 int)|
#insert into t3 values (3), (4)|
#
#--disable_warnings
#drop procedure if exists bug4318|
#--enable_warnings
#create procedure bug4318()
# handler t3 read next|
#
#handler t3 open|
## Expect no results, as tables are closed, but there shouldn't be any errors
#call bug4318()|
#call bug4318()|
#handler t3 close|
#
#drop procedure bug4318|
#drop table t3|
#
# BUG#4902: Stored procedure with SHOW WARNINGS leads to packet error
@ -2712,30 +2720,136 @@ show create procedure bar|
--replace_column 5 '0000-00-00 00:00:00' 6 '0000-00-00 00:00:00'
show procedure status like 'bar'|
drop procedure bar|
delimiter ;|
drop table t1;
drop table t2;
#
# rexecution
#
--disable_warnings
drop procedure if exists p1;
drop procedure if exists p1|
--enable_warnings
create procedure p1 () select (select s1 from t1) from t1;
create table t1 (s1 int);
call p1();
insert into t1 values (1);
call p1();
drop procedure p1;
drop table t1;
create procedure p1 ()
select (select s1 from t3) from t3|
create table t3 (s1 int)|
call p1()|
insert into t3 values (1)|
call p1()|
drop procedure p1|
drop table t3|
#
# backticks
#
--disable_warnings
drop function if exists foo;
drop function if exists foo|
--enable_warnings
create function `foo` () returns int return 5;
select `foo` ();
drop function `foo`;
create function `foo` () returns int
return 5|
select `foo` ()|
drop function `foo`|
#
# Implicit LOCK/UNLOCK TABLES for table access in functions
#
--disable_warning
drop function if exists t1max|
--enable_warnings
create function t1max() returns int
begin
declare x int;
select max(data) into x from t1;
return x;
end|
insert into t1 values ("foo", 3), ("bar", 2), ("zip", 5), ("zap", 1)|
select t1max()|
drop function t1max|
--disable_warnings
drop table if exists t3|
--enable_warnings
create table t3 (
v char(16) not null primary key,
c int unsigned not null
)|
create function getcount(s char(16)) returns int
begin
declare x int;
select count(*) into x from t3 where v = s;
if x = 0 then
insert into t3 values (s, 1);
else
update t3 set c = c+1 where v = s;
end if;
return x;
end|
select * from t1 where data = getcount("bar")|
select * from t3|
select getcount("zip")|
select getcount("zip")|
select * from t3|
select getcount(id) from t1 where data = 3|
select getcount(id) from t1 where data = 5|
select * from t3|
drop table t3|
drop function getcount|
#
# Former BUG#1654
# QQ Currently crashes
#
#create function bug1654() returns int
# return (select sum(t1.data) from test.t1 t)|
#
#select bug1654()|
#
# BUG#5240: Stored procedure crash if function has cursor declaration
#
--disable_warnings
drop function if exists bug5240|
--enable_warnings
create function bug5240 () returns int
begin
declare x int;
declare c cursor for select data from t1 limit 1;
open c;
fetch c into x;
close c;
return x;
end|
delete from t1|
insert into t1 values ("answer", 42)|
# QQ BUG: This returns the wrong result, id=42 instead of "answer".
select id, bug5240() from t1|
drop function bug5240|
#
# BUG#5278: Stored procedure packets out of order if SET PASSWORD.
#
--disable_warnings
drop function if exists bug5278|
--enable_warnings
create function bug5278 () returns char
begin
SET PASSWORD FOR 'bob'@'%.loc.gov' = PASSWORD('newpass');
return 'okay';
end|
--error 1133
select bug5278()|
--error 1133
select bug5278()|
drop function bug5278|
delimiter ;|
drop table t1;
drop table t2;

15
mysql-test/t/view.test
View File

@ -863,12 +863,15 @@ create view v1 (a,a) as select 'a','a';
#
# SP variables inside view test
#
delimiter //;
create procedure p1 () begin declare v int; create view v1 as select v; end;//
delimiter ;//
-- error 1351
call p1();
drop procedure p1;
# QQ This can't be tested with the new table locking for functions,
# QQ since views created in an SP can't be used within the same SP
# QQ (just as for tables). Instead it fails with error 1146.
#delimiter //;
#create procedure p1 () begin declare v int; create view v1 as select v; end;//
#delimiter ;//
#-- error 1351
#call p1();
#drop procedure p1;
#
# updatablity should be transitive

16
sql/item_func.cc
View File

@ -3568,13 +3568,18 @@ Item_func_sp::execute(Item **itp)
#endif
if (! m_sp)
m_sp= sp_find_function(thd, m_name);
m_sp= sp_find_function(thd, m_name, TRUE); // cache only
if (! m_sp)
{
my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION", m_name->m_qname.str);
DBUG_RETURN(-1);
}
#ifndef EMBEDDED_LIBRARY
my_bool nsok= thd->net.no_send_ok;
thd->net.no_send_ok= TRUE;
#endif
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (check_procedure_access(thd, EXECUTE_ACL,
m_sp->m_db.str, m_sp->m_name.str, 0))
@ -3600,6 +3605,9 @@ Item_func_sp::execute(Item **itp)
sp_restore_security_context(thd, m_sp, &save_ctx);
#endif
#ifndef EMBEDDED_LIBRARY
thd->net.no_send_ok= nsok;
#endif
DBUG_RETURN(res);
}
@ -3610,7 +3618,7 @@ Item_func_sp::field_type() const
DBUG_ENTER("Item_func_sp::field_type");
if (! m_sp)
m_sp= sp_find_function(current_thd, m_name);
m_sp= sp_find_function(current_thd, m_name, TRUE); // cache only
if (m_sp)
{
DBUG_PRINT("info", ("m_returns = %d", m_sp->m_returns));
@ -3628,7 +3636,7 @@ Item_func_sp::result_type() const
DBUG_PRINT("info", ("m_sp = %p", m_sp));
if (! m_sp)
m_sp= sp_find_function(current_thd, m_name);
m_sp= sp_find_function(current_thd, m_name, TRUE); // cache only
if (m_sp)
{
DBUG_RETURN(m_sp->result());
@ -3643,7 +3651,7 @@ Item_func_sp::fix_length_and_dec()
DBUG_ENTER("Item_func_sp::fix_length_and_dec");
if (! m_sp)
m_sp= sp_find_function(current_thd, m_name);
m_sp= sp_find_function(current_thd, m_name, TRUE); // cache only
if (! m_sp)
{
my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION", m_name->m_qname.str);

2
sql/share/errmsg.txt
View File

@ -5094,7 +5094,7 @@ ER_SP_BADSELECT 0A000
ER_SP_BADRETURN 42000
eng "RETURN is only allowed in a FUNCTION"
ER_SP_BADSTATEMENT 0A000
eng "Statements like SELECT, INSERT, UPDATE (and others) are not allowed in a FUNCTION"
eng "LOCK and UNLOCK tables are not allowed in stored procedures"
ER_UPDATE_LOG_DEPRECATED_IGNORED 42000
eng "The update log is deprecated and replaced by the binary log; SET SQL_LOG_UPDATE has been ignored"
ER_UPDATE_LOG_DEPRECATED_TRANSLATED 42000

55
sql/sp.cc
View File

@ -854,13 +854,14 @@ sp_show_status_procedure(THD *thd, const char *wild)
******************************************************************************/
sp_head *
sp_find_function(THD *thd, sp_name *name)
sp_find_function(THD *thd, sp_name *name, bool cache_only)
{
sp_head *sp;
DBUG_ENTER("sp_find_function");
DBUG_PRINT("enter", ("name: %*s", name->m_name.length, name->m_name.str));
if (!(sp= sp_cache_lookup(&thd->sp_func_cache, name)))
if (!(sp= sp_cache_lookup(&thd->sp_func_cache, name)) &&
!cache_only)
{
if (db_find_routine(thd, TYPE_ENUM_FUNCTION, name, &sp) != SP_OK)
sp= NULL;
@ -963,7 +964,7 @@ sp_function_exists(THD *thd, sp_name *name)
byte *
sp_lex_spfuns_key(const byte *ptr, uint *plen, my_bool first)
sp_lex_sp_key(const byte *ptr, uint *plen, my_bool first)
{
LEX_STRING *lsp= (LEX_STRING *)ptr;
*plen= lsp->length;
@ -972,37 +973,36 @@ sp_lex_spfuns_key(const byte *ptr, uint *plen, my_bool first)
void
sp_add_fun_to_lex(LEX *lex, sp_name *fun)
sp_add_to_hash(HASH *h, sp_name *fun)
{
if (! hash_search(&lex->spfuns,
(byte *)fun->m_qname.str, fun->m_qname.length))
if (! hash_search(h, (byte *)fun->m_qname.str, fun->m_qname.length))
{
LEX_STRING *ls= (LEX_STRING *)sql_alloc(sizeof(LEX_STRING));
ls->str= sql_strmake(fun->m_qname.str, fun->m_qname.length);
ls->length= fun->m_qname.length;
my_hash_insert(&lex->spfuns, (byte *)ls);
my_hash_insert(h, (byte *)ls);
}
}
void
sp_merge_funs(LEX *dst, LEX *src)
sp_merge_hash(HASH *dst, HASH *src)
{
for (uint i=0 ; i < src->spfuns.records ; i++)
for (uint i=0 ; i < src->records ; i++)
{
LEX_STRING *ls= (LEX_STRING *)hash_element(&src->spfuns, i);
LEX_STRING *ls= (LEX_STRING *)hash_element(src, i);
if (! hash_search(&dst->spfuns, (byte *)ls->str, ls->length))
my_hash_insert(&dst->spfuns, (byte *)ls);
if (! hash_search(dst, (byte *)ls->str, ls->length))
my_hash_insert(dst, (byte *)ls);
}
}
int
sp_cache_functions(THD *thd, LEX *lex)
sp_cache_routines(THD *thd, LEX *lex, int type)
{
HASH *h= &lex->spfuns;
HASH *h= (type == TYPE_ENUM_FUNCTION ? &lex->spfuns : &lex->spprocs);
int ret= 0;
for (uint i=0 ; i < h->records ; i++)
@ -1011,7 +1011,9 @@ sp_cache_functions(THD *thd, LEX *lex)
sp_name name(*ls);
name.m_qname= *ls;
if (! sp_cache_lookup(&thd->sp_func_cache, &name))
if (! sp_cache_lookup((type == TYPE_ENUM_FUNCTION ?
&thd->sp_func_cache : &thd->sp_proc_cache),
&name))
{
sp_head *sp;
LEX *oldlex= thd->lex;
@ -1027,11 +1029,23 @@ sp_cache_functions(THD *thd, LEX *lex)
name.m_name.str+= 1;
name.m_name.length= name.m_qname.length - name.m_db.length - 1;
if (db_find_routine(thd, TYPE_ENUM_FUNCTION, &name, &sp)
== SP_OK)
if (db_find_routine(thd, type, &name, &sp) == SP_OK)
{
sp_cache_insert(&thd->sp_func_cache, sp);
ret= sp_cache_functions(thd, newlex);
if (type == TYPE_ENUM_FUNCTION)
sp_cache_insert(&thd->sp_func_cache, sp);
else
sp_cache_insert(&thd->sp_proc_cache, sp);
ret= sp_cache_routines(thd, newlex, TYPE_ENUM_FUNCTION);
if (!ret)
{
sp_merge_hash(&lex->spfuns, &newlex->spfuns);
ret= sp_cache_routines(thd, newlex, TYPE_ENUM_PROCEDURE);
}
if (!ret)
{
sp_merge_hash(&lex->spprocs, &newlex->spprocs);
sp_merge_table_hash(&lex->sptabs, &sp->m_sptabs);
}
delete newlex;
thd->lex= oldlex;
if (ret)
@ -1041,9 +1055,6 @@ sp_cache_functions(THD *thd, LEX *lex)
{
delete newlex;
thd->lex= oldlex;
my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION", ls->str);
ret= 1;
break;
}
}
}

13
sql/sp.h
View File

@ -56,7 +56,7 @@ int
sp_show_status_procedure(THD *thd, const char *wild);
sp_head *
sp_find_function(THD *thd, sp_name *name);
sp_find_function(THD *thd, sp_name *name, bool cache_only = 0);
int
sp_create_function(THD *thd, sp_head *sp);
@ -77,14 +77,15 @@ bool
sp_function_exists(THD *thd, sp_name *name);
// This is needed since we have to read the functions before we
// do anything else.
/*
* For precaching of functions and procedures
*/
void
sp_add_fun_to_lex(LEX *lex, sp_name *fun);
sp_add_to_hash(HASH *h, sp_name *fun);
void
sp_merge_funs(LEX *dst, LEX *src);
sp_merge_hash(HASH *dst, HASH *src);
int
sp_cache_functions(THD *thd, LEX *lex);
sp_cache_routines(THD *thd, LEX *lex, int type);
//

289
sql/sp_head.cc
View File

@ -23,6 +23,7 @@
#include "sp.h"
#include "sp_pcontext.h"
#include "sp_rcontext.h"
#include "sp_cache.h"
Item_result
sp_map_result_type(enum enum_field_types type)
@ -259,11 +260,14 @@ sp_head::sp_head()
:Item_arena((bool)FALSE), m_returns_cs(NULL), m_has_return(FALSE),
m_simple_case(FALSE), m_multi_results(FALSE), m_in_handler(FALSE)
{
extern byte *
sp_table_key(const byte *ptr, uint *plen, my_bool first);
DBUG_ENTER("sp_head::sp_head");
state= INITIALIZED;
m_backpatch.empty();
m_lex.empty();
hash_init(&m_sptabs, system_charset_info, 0, 0, 0, sp_table_key, 0, 0);
DBUG_VOID_RETURN;
}
@ -439,6 +443,8 @@ sp_head::destroy()
if (lex != &m_thd->main_lex) // We got interrupted and have lex'es left
delete lex;
}
if (m_sptabs.array.buffer)
hash_free(&m_sptabs);
DBUG_VOID_RETURN;
}
@ -799,48 +805,10 @@ sp_head::restore_lex(THD *thd)
oldlex->trg_table_fields.push_back(&sublex->trg_table_fields);
// Collect some data from the sub statement lex.
sp_merge_funs(oldlex, sublex);
#ifdef NOT_USED_NOW
// QQ We're not using this at the moment.
if (sublex.sql_command == SQLCOM_CALL)
{
// It would be slightly faster to keep the list sorted, but we need
// an "insert before" method to do that.
char *proc= sublex.udf.name.str;
List_iterator_fast<char *> li(m_calls);
char **it;
while ((it= li++))
if (my_strcasecmp(system_charset_info, proc, *it) == 0)
break;
if (! it)
m_calls.push_back(&proc);
}
sp_merge_hash(&oldlex->spfuns, &sublex->spfuns);
sp_merge_hash(&oldlex->spprocs, &sublex->spprocs);
// Merge used tables
// QQ ...or just open tables in thd->open_tables?
// This is not entirerly clear at the moment, but for now, we collect
// tables here.
for (sl= sublex.all_selects_list ;
sl ;
sl= sl->next_select())
{
for (TABLE_LIST *tables= sl->get_table_list() ;
tables ;
tables= tables->next)
{
List_iterator_fast<char *> li(m_tables);
char **tb;
while ((tb= li++))
if (my_strcasecmp(system_charset_info, tables->table_name, *tb) == 0)
break;
if (! tb)
m_tables.push_back(&tables->table_name);
}
}
#endif
sp_merge_table_list(thd, &m_sptabs, sublex->query_tables, sublex);
if (! sublex->sp_lex_in_use)
delete sublex;
thd->lex= oldlex;
@ -1864,3 +1832,242 @@ sp_restore_security_context(THD *thd, sp_head *sp, st_sp_security_context *ctxp)
}
#endif /* NO_EMBEDDED_ACCESS_CHECKS */
/*
* Table merge hash table
*
*/
typedef struct st_sp_table
{
LEX_STRING qname;
bool temp;
TABLE_LIST *table;
} SP_TABLE;
byte *
sp_table_key(const byte *ptr, uint *plen, my_bool first)
{
SP_TABLE *tab= (SP_TABLE *)ptr;
*plen= tab->qname.length;
return (byte *)tab->qname.str;
}
/*
* Merge the table list into the hash table.
* If the optional lex is provided, it's used to check and set
* the flag for creation of a temporary table.
*/
bool
sp_merge_table_list(THD *thd, HASH *h, TABLE_LIST *table,
LEX *lex_for_tmp_check)
{
for (; table ; table= table->next_global)
if (!table->derived &&
(!table->select_lex ||
!(table->select_lex->options & OPTION_SCHEMA_TABLE)))
{
char tname[64+1+64+1+64+1]; // db.table.alias\0
uint tlen, alen;
SP_TABLE *tab;
tlen= table->db_length;
memcpy(tname, table->db, tlen);
tname[tlen++]= '.';
memcpy(tname+tlen, table->table_name, table->table_name_length);
tlen+= table->table_name_length;
tname[tlen++]= '.';
alen= strlen(table->alias);
memcpy(tname+tlen, table->alias, alen);
tlen+= alen;
tname[tlen]= '\0';
if ((tab= (SP_TABLE *)hash_search(h, (byte *)tname, tlen)))
{
if (tab->table->lock_type < table->lock_type)
tab->table= table; // Use the table with the highest lock type
}
else
{
if (!(tab= (SP_TABLE *)thd->calloc(sizeof(SP_TABLE))))
return FALSE;
tab->qname.length= tlen;
tab->qname.str= (char *)thd->strmake(tname, tab->qname.length);
if (!tab->qname.str)
return FALSE;
if (lex_for_tmp_check &&
lex_for_tmp_check->sql_command == SQLCOM_CREATE_TABLE &&
lex_for_tmp_check->query_tables == table &&
lex_for_tmp_check->create_info.options & HA_LEX_CREATE_TMP_TABLE)
tab->temp= TRUE;
tab->table= table;
my_hash_insert(h, (byte *)tab);
}
}
return TRUE;
}
void
sp_merge_routine_tables(THD *thd, LEX *lex)
{
uint i;
for (i= 0 ; i < lex->spfuns.records ; i++)
{
sp_head *sp;
LEX_STRING *ls= (LEX_STRING *)hash_element(&lex->spfuns, i);
sp_name name(*ls);
name.m_qname= *ls;
if ((sp= sp_cache_lookup(&thd->sp_func_cache, &name)))
sp_merge_table_hash(&lex->sptabs, &sp->m_sptabs);
}
for (i= 0 ; i < lex->spprocs.records ; i++)
{
sp_head *sp;
LEX_STRING *ls= (LEX_STRING *)hash_element(&lex->spprocs, i);
sp_name name(*ls);
name.m_qname= *ls;
if ((sp= sp_cache_lookup(&thd->sp_proc_cache, &name)))
sp_merge_table_hash(&lex->sptabs, &sp->m_sptabs);
}
}
void
sp_merge_table_hash(HASH *hdst, HASH *hsrc)
{
for (uint i=0 ; i < hsrc->records ; i++)
{
SP_TABLE *tabdst;
SP_TABLE *tabsrc= (SP_TABLE *)hash_element(hsrc, i);
if (! (tabdst= (SP_TABLE *)hash_search(hdst,
tabsrc->qname.str,
tabsrc->qname.length)))
{
my_hash_insert(hdst, (byte *)tabsrc);
}
else
{
if (tabdst->table->lock_type < tabsrc->table->lock_type)
tabdst->table= tabsrc->table; // Use the highest lock type
}
}
}
TABLE_LIST *
sp_hash_to_table_list(THD *thd, HASH *h)
{
uint i;
TABLE_LIST *tables= NULL;
DBUG_ENTER("sp_hash_to_table_list");
for (i=0 ; i < h->records ; i++)
{
SP_TABLE *stab= (SP_TABLE *)hash_element(h, i);
if (stab->temp)
continue;
TABLE_LIST *table, *otable= stab->table;
if (! (table= (TABLE_LIST *)thd->calloc(sizeof(TABLE_LIST))))
return NULL;
table->db= otable->db;
table->db_length= otable->db_length;
table->alias= otable->alias;
table->table_name= otable->table_name;
table->table_name_length= otable->table_name_length;
table->lock_type= otable->lock_type;
table->updating= otable->updating;
table->force_index= otable->force_index;
table->ignore_leaves= otable->ignore_leaves;
table->derived= otable->derived;
table->schema_table= otable->schema_table;
table->select_lex= otable->select_lex;
table->cacheable_table= otable->cacheable_table;
table->use_index= otable->use_index;
table->ignore_index= otable->ignore_index;
table->option= otable->option;
table->next_global= tables;
tables= table;
}
DBUG_RETURN(tables);
}
bool
sp_open_and_lock_tables(THD *thd, TABLE_LIST *tables)
{
DBUG_ENTER("sp_open_and_lock_tables");
bool ret;
thd->in_lock_tables= 1;
thd->options|= OPTION_TABLE_LOCK;
if (simple_open_n_lock_tables(thd, tables))
{
thd->options&= ~(ulong)(OPTION_TABLE_LOCK);
ret= FALSE;
}
else
{
#if 0
// QQ What about this?
#ifdef HAVE_QUERY_CACHE
if (thd->variables.query_cache_wlock_invalidate)
query_cache.invalidate_locked_for_write(first_table); // QQ first_table?
#endif /* HAVE_QUERY_CACHE */
#endif
thd->locked_tables= thd->lock;
thd->lock= 0;
ret= TRUE;
}
thd->in_lock_tables= 0;
DBUG_RETURN(ret);
}
void
sp_unlock_tables(THD *thd)
{
thd->lock= thd->locked_tables;
thd->locked_tables= 0;
close_thread_tables(thd); // Free tables
if (thd->options & OPTION_TABLE_LOCK)
{
#if 0
// QQ What about this?
end_active_trans(thd);
#endif
thd->options&= ~(ulong)(OPTION_TABLE_LOCK);
}
if (thd->global_read_lock)
unlock_global_read_lock(thd);
}
/*
* Simple function for adding an explicetly named (systems) table to
* the global table list, e.g. "mysql", "proc".
*
*/
TABLE_LIST *
sp_add_to_query_tables(THD *thd, LEX *lex,
const char *db, const char *name,
thr_lock_type locktype)
{
TABLE_LIST *table;
if (!(table= (TABLE_LIST *)thd->calloc(sizeof(TABLE_LIST))))
{
my_error(ER_OUTOFMEMORY, MYF(0), sizeof(TABLE_LIST));
return NULL;
}
table->db_length= strlen(db);
table->db= thd->strmake(db, table->db_length);
table->table_name_length= strlen(name);
table->table_name= thd->strmake(name, table->table_name_length);
table->alias= thd->strdup(name);
table->lock_type= locktype;
table->select_lex= lex->current_select; // QQ?
table->cacheable_table= 1;
lex->add_to_query_tables(table);
return table;
}

24
sql/sp_head.h
View File

@ -92,11 +92,6 @@ public:
uint m_old_cmq; // Old CLIENT_MULTI_QUERIES value
st_sp_chistics *m_chistics;
ulong m_sql_mode; // For SHOW CREATE
#if NOT_USED_NOW
// QQ We're not using this at the moment.
List<char *> m_calls; // Called procedures.
List<char *> m_tables; // Used tables.
#endif
LEX_STRING m_qname; // db.name
LEX_STRING m_db;
LEX_STRING m_name;
@ -108,6 +103,7 @@ public:
LEX_STRING m_definer_host;
longlong m_created;
longlong m_modified;
HASH m_sptabs; /* Merged table lists */
// Pointers set during parsing
uchar *m_param_begin, *m_param_end, *m_returns_begin, *m_returns_end,
*m_body_begin;
@ -897,4 +893,22 @@ void
sp_restore_security_context(THD *thd, sp_head *sp,st_sp_security_context *ctxp);
#endif /* NO_EMBEDDED_ACCESS_CHECKS */
bool
sp_merge_table_list(THD *thd, HASH *h, TABLE_LIST *table,
LEX *lex_for_tmp_check = 0);
void
sp_merge_routine_tables(THD *thd, LEX *lex);
void
sp_merge_table_hash(HASH *hdst, HASH *hsrc);
TABLE_LIST *
sp_hash_to_table_list(THD *thd, HASH *h);
bool
sp_open_and_lock_tables(THD *thd, TABLE_LIST *tables);
void
sp_unlock_tables(THD *thd);
TABLE_LIST *
sp_add_to_query_tables(THD *thd, LEX *lex,
const char *db, const char *name,
thr_lock_type locktype);
#endif /* _SP_HEAD_H_ */

6
sql/sql_base.cc
View File

@ -919,10 +919,10 @@ TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT *mem_root,
{
if (table->s->key_length == key_length &&
!memcmp(table->s->table_cache_key,key,key_length) &&
!my_strcasecmp(system_charset_info, table->alias, alias) &&
table->query_id != thd->query_id)
!my_strcasecmp(system_charset_info, table->alias, alias))
{
table->query_id=thd->query_id;
if (table->query_id != thd->query_id)
table->query_id=thd->query_id;
DBUG_PRINT("info",("Using locked table"));
goto reset;
}

2
sql/sql_class.h
View File

@ -1031,6 +1031,8 @@ public:
sp_rcontext *spcont; // SP runtime context
sp_cache *sp_proc_cache;
sp_cache *sp_func_cache;
bool shortcut_make_view; /* Don't do full mysql_make_view()
during pre-opening of tables. */
/*
If we do a purge of binary logs, log index info of the threads

5
sql/sql_derived.cc
View File

@ -165,16 +165,21 @@ exit:
else
{
if (!thd->fill_derived_tables())
{
delete derived_result;
derived_result= NULL;
}
orig_table_list->derived_result= derived_result;
orig_table_list->table= table;
orig_table_list->table_name= (char*) table->s->table_name;
orig_table_list->table_name_length= strlen((char*)table->s->table_name);
table->derived_select_number= first_select->select_number;
table->s->tmp_table= TMP_TABLE;
#ifndef NO_EMBEDDED_ACCESS_CHECKS
table->grant.privilege= SELECT_ACL;
#endif
orig_table_list->db= (char *)"";
orig_table_list->db_length= 0;
// Force read of table stats in the optimizer
table->file->info(HA_STATUS_VARIABLE);
/* Add new temporary table to list of open derived tables */

4
sql/sql_lex.cc
View File

@ -176,6 +176,10 @@ void lex_start(THD *thd, uchar *buf,uint length)
if (lex->spfuns.records)
my_hash_reset(&lex->spfuns);
if (lex->spprocs.records)
my_hash_reset(&lex->spprocs);
if (lex->sptabs.records)
my_hash_reset(&lex->sptabs);
DBUG_VOID_RETURN;
}

13
sql/sql_lex.h
View File

@ -748,6 +748,8 @@ typedef struct st_lex
bool all_privileges;
sp_pcontext *spcont;
HASH spfuns; /* Called functions */
HASH spprocs; /* Called procedures */
HASH sptabs; /* Merged table lists */
st_sp_chistics sp_chistics;
bool only_view; /* used for SHOW CREATE TABLE/VIEW */
/*
@ -768,14 +770,21 @@ typedef struct st_lex
st_lex() :result(0), sql_command(SQLCOM_END)
{
extern byte *sp_lex_spfuns_key(const byte *ptr, uint *plen, my_bool first);
hash_init(&spfuns, system_charset_info, 0, 0, 0, sp_lex_spfuns_key, 0, 0);
extern byte *sp_lex_sp_key(const byte *ptr, uint *plen, my_bool first);
extern byte *sp_table_key(const byte *ptr, uint *plen, my_bool first);
hash_init(&spfuns, system_charset_info, 0, 0, 0, sp_lex_sp_key, 0, 0);
hash_init(&spprocs, system_charset_info, 0, 0, 0, sp_lex_sp_key, 0, 0);
hash_init(&sptabs, system_charset_info, 0, 0, 0, sp_table_key, 0, 0);
}
~st_lex()
{
if (spfuns.array.buffer)
hash_free(&spfuns);
if (spprocs.array.buffer)
hash_free(&spprocs);
if (sptabs.array.buffer)
hash_free(&sptabs);
}
inline void uncacheable(uint8 cause)

94
sql/sql_parse.cc
View File

@ -2231,6 +2231,10 @@ mysql_execute_command(THD *thd)
TABLE_LIST *all_tables;
/* most outer SELECT_LEX_UNIT of query */
SELECT_LEX_UNIT *unit= &lex->unit;
/* Locked closure of all tables */
TABLE_LIST *locked_tables= NULL;
/* Saved variable value */
my_bool old_innodb_table_locks= thd->variables.innodb_table_locks;
DBUG_ENTER("mysql_execute_command");
/*
@ -2252,11 +2256,89 @@ mysql_execute_command(THD *thd)
/* should be assigned after making first tables same */
all_tables= lex->query_tables;
thd->shortcut_make_view= 0;
if (lex->sql_command != SQLCOM_CREATE_PROCEDURE &&
lex->sql_command != SQLCOM_CREATE_SPFUNCTION)
lex->sql_command != SQLCOM_CREATE_SPFUNCTION &&
lex->sql_command != SQLCOM_LOCK_TABLES &&
lex->sql_command != SQLCOM_UNLOCK_TABLES)
{
if (sp_cache_functions(thd, lex))
DBUG_RETURN(-1);
while (1)
{
if (sp_cache_routines(thd, lex, TYPE_ENUM_FUNCTION))
DBUG_RETURN(-1);
if (sp_cache_routines(thd, lex, TYPE_ENUM_PROCEDURE))
DBUG_RETURN(-1);
if (!thd->locked_tables &&
lex->sql_command != SQLCOM_CREATE_TABLE &&
lex->sql_command != SQLCOM_CREATE_VIEW)
{
MEM_ROOT *thdmemroot= NULL;
sp_merge_routine_tables(thd, lex);
// QQ Preopen tables to find views and triggers.
// This means we open, close and open again, which sucks, but
// right now it's the easiest way to get it to work. A better
// solution will hopefully be found soon...
if (lex->sptabs.records || lex->query_tables)
{
uint procs, funs, tabs;
if (thd->mem_root != thd->current_arena->mem_root)
{
thdmemroot= thd->mem_root;
thd->mem_root= thd->current_arena->mem_root;
}
if (!sp_merge_table_list(thd, &lex->sptabs, lex->query_tables))
DBUG_RETURN(-1);
procs= lex->spprocs.records;
funs= lex->spfuns.records;
tabs= lex->sptabs.records;
if ((locked_tables= sp_hash_to_table_list(thd, &lex->sptabs)))
{
// We don't want these updated now
uint ctmpdtabs= thd->status_var.created_tmp_disk_tables;
uint ctmptabs= thd->status_var.created_tmp_tables;
uint count;
thd->shortcut_make_view= TRUE;
open_tables(thd, locked_tables, &count);
thd->shortcut_make_view= FALSE;
close_thread_tables(thd);
thd->status_var.created_tmp_disk_tables= ctmpdtabs;
thd->status_var.created_tmp_tables= ctmptabs;
thd->clear_error();
mysql_reset_errors(thd);
locked_tables= NULL;
}
// A kludge: Decrease all temp. table's query ids to allow a
// second opening.
for (TABLE *table= thd->temporary_tables; table ; table=table->next)
table->query_id-= 1;
if (procs < lex->spprocs.records ||
funs < lex->spfuns.records ||
tabs < lex->sptabs.records)
{
if (thdmemroot)
thd->mem_root= thdmemroot;
continue; // Found more SPs or tabs, try again
}
}
if (lex->sptabs.records &&
(lex->spfuns.records || lex->spprocs.records) &&
sp_merge_table_list(thd, &lex->sptabs, lex->query_tables))
{
if ((locked_tables= sp_hash_to_table_list(thd, &lex->sptabs)))
{
thd->variables.innodb_table_locks= FALSE;
sp_open_and_lock_tables(thd, locked_tables);
}
}
if (thdmemroot)
thd->mem_root= thdmemroot;
}
break;
} // while (1)
}
/*
@ -4261,6 +4343,12 @@ cleanup:
thd->lock= 0;
}
if (locked_tables)
{
thd->variables.innodb_table_locks= old_innodb_table_locks;
if (thd->locked_tables)
sp_unlock_tables(thd);
}
DBUG_RETURN(res || thd->net.report_error);
}

8
sql/sql_prepare.cc
View File

@ -1541,9 +1541,11 @@ static int check_prepared_statement(Prepared_statement *stmt,
if (lex->sql_command != SQLCOM_CREATE_PROCEDURE &&
lex->sql_command != SQLCOM_CREATE_SPFUNCTION)
{
/* the error is print inside */
if (sp_cache_functions(thd, lex))
DBUG_RETURN(1);
/* The error is printed inside */
if (sp_cache_routines(thd, lex, TYPE_ENUM_FUNCTION))
DBUG_RETURN(-1);
if (sp_cache_routines(thd, lex, TYPE_ENUM_PROCEDURE))
DBUG_RETURN(-1);
}
switch (sql_command) {

5
sql/sql_show.cc
View File

@ -311,7 +311,9 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
if (db && !(col_access & TABLE_ACLS))
{
table_list.db= (char*) db;
table_list.db_length= strlen(db);
table_list.table_name= file->name;
table_list.table_name_length= strlen(file->name);
table_list.grant.privilege=col_access;
if (check_grant(thd, TABLE_ACLS, &table_list, 1, UINT_MAX, 1))
continue;
@ -2519,7 +2521,9 @@ int fill_schema_proc(THD *thd, TABLE_LIST *tables, COND *cond)
bzero((char*) &proc_tables,sizeof(proc_tables));
proc_tables.db= (char*) "mysql";
proc_tables.db_length= 5;
proc_tables.table_name= proc_tables.alias= (char*) "proc";
proc_tables.table_name_length= 4;
proc_tables.lock_type= TL_READ;
if (!(proc_table= open_ltable(thd, &proc_tables, TL_READ)))
{
@ -3197,6 +3201,7 @@ int mysql_schema_table(THD *thd, LEX *lex, TABLE_LIST *table_list)
table_list->schema_table_name,
table_list->alias);
table_list->table_name= (char*) table->s->table_name;
table_list->table_name_length= strlen(table->s->table_name);
table_list->table= table;
table->next= thd->derived_tables;
thd->derived_tables= table;

41
sql/sql_view.cc
View File

@ -556,6 +556,7 @@ my_bool
mysql_make_view(File_parser *parser, TABLE_LIST *table)
{
DBUG_ENTER("mysql_make_view");
DBUG_PRINT("info", ("table=%p (%s)", table, table->table_name));
if (table->view)
{
@ -612,7 +613,9 @@ mysql_make_view(File_parser *parser, TABLE_LIST *table)
table->view= lex= thd->lex= (LEX*) new(thd->mem_root) st_lex_local;
lex_start(thd, (uchar*)table->query.str, table->query.length);
view_select= &lex->select_lex;
view_select->select_number= ++thd->select_number;
/* Only if we're not in the pre-open phase */
if (!thd->shortcut_make_view)
view_select->select_number= ++thd->select_number;
old_lex->derived_tables|= DERIVED_VIEW;
{
ulong options= thd->options;
@ -657,27 +660,29 @@ mysql_make_view(File_parser *parser, TABLE_LIST *table)
TABLE_LIST *view_tables_tail= 0;
TABLE_LIST *tbl;
/* move SP to main LEX */
if (lex->spfuns.records)
{
/* move SP to main LEX */
sp_merge_funs(old_lex, lex);
/* open mysq.proc for functions which are not in cache */
if (old_lex->proc_table == 0 &&
(old_lex->proc_table=
(TABLE_LIST*)thd->calloc(sizeof(TABLE_LIST))) != 0)
{
TABLE_LIST *table= old_lex->proc_table;
table->db= (char*)"mysql";
table->db_length= 5;
table->table_name= table->alias= (char*)"proc";
table->table_name_length= 4;
table->cacheable_table= 1;
old_lex->add_to_query_tables(table);
}
}
sp_merge_hash(&old_lex->spfuns, &lex->spfuns);
/* cleanup LEX */
if (lex->spfuns.array.buffer)
hash_free(&lex->spfuns);
if (lex->spprocs.array.buffer)
hash_free(&lex->spprocs);
if (lex->sptabs.array.buffer)
hash_free(&lex->sptabs);
/* If we're pre-opening tables to find SPs and tables we need
not go any further; doing so will cause an infinite loop. */
if (thd->shortcut_make_view)
{
extern bool
sp_merge_table_list(THD *thd, HASH *h, TABLE_LIST *table,
LEX *lex_for_tmp_check = 0);
sp_merge_table_list(thd, &old_lex->sptabs, view_tables);
goto ok;
}
/*
check rights to run commands (EXPLAIN SELECT & SHOW CREATE) which show

80
sql/sql_yacc.yy
View File

@ -1464,6 +1464,7 @@ call:
lex->sql_command= SQLCOM_CALL;
lex->spname= $2;
lex->value_list.empty();
sp_add_to_hash(&lex->spprocs, $2);
}
'(' sp_cparam_list ')' {}
;
@ -1869,36 +1870,21 @@ sp_proc_stmt:
if (lex->sql_command != SQLCOM_SET_OPTION ||
! lex->var_list.is_empty())
{
/*
Currently we can't handle queries inside a FUNCTION or
TRIGGER, because of the way table locking works. This is
unfortunate, and limits the usefulness of functions and
especially triggers a tremendously, but it's nothing we
can do about this at the moment.
*/
if (sp->m_type != TYPE_ENUM_PROCEDURE)
{
my_message(ER_SP_BADSTATEMENT, ER(ER_SP_BADSTATEMENT), MYF(0));
YYABORT;
}
else
{
sp_instr_stmt *i=new sp_instr_stmt(sp->instructions(),
lex->spcont);
sp_instr_stmt *i=new sp_instr_stmt(sp->instructions(),
lex->spcont);
/* Extract the query statement from the tokenizer:
The end is either lex->tok_end or tok->ptr. */
if (lex->ptr - lex->tok_end > 1)
i->m_query.length= lex->ptr - sp->m_tmp_query;
else
i->m_query.length= lex->tok_end - sp->m_tmp_query;
i->m_query.str= strmake_root(YYTHD->mem_root,
(char *)sp->m_tmp_query,
i->m_query.length);
i->set_lex(lex);
sp->add_instr(i);
lex->sp_lex_in_use= TRUE;
}
/* Extract the query statement from the tokenizer:
The end is either lex->tok_end or tok->ptr. */
if (lex->ptr - lex->tok_end > 1)
i->m_query.length= lex->ptr - sp->m_tmp_query;
else
i->m_query.length= lex->tok_end - sp->m_tmp_query;
i->m_query.str= strmake_root(YYTHD->mem_root,
(char *)sp->m_tmp_query,
i->m_query.length);
i->set_lex(lex);
sp->add_instr(i);
lex->sp_lex_in_use= TRUE;
}
sp->restore_lex(YYTHD);
}
@ -1915,11 +1901,6 @@ sp_proc_stmt:
{
sp_instr_freturn *i;
if ($2->type() == Item::SUBSELECT_ITEM)
{ /* QQ For now, just disallow subselects as values */
my_message(ER_SP_BADSTATEMENT, ER(ER_SP_BADSTATEMENT), MYF(0));
YYABORT;
}
i= new sp_instr_freturn(lex->sphead->instructions(),
lex->spcont,
$2, lex->sphead->m_returns);
@ -4503,7 +4484,7 @@ simple_expr:
sp_name *name= new sp_name($1, $3);
name->init_qname(YYTHD);
sp_add_fun_to_lex(Lex, name);
sp_add_to_hash(&Lex->spfuns, name);
if ($5)
$$= new Item_func_sp(name, *$5);
else
@ -4574,7 +4555,7 @@ simple_expr:
{
sp_name *name= sp_name_current_db_new(YYTHD, $1);
sp_add_fun_to_lex(Lex, name);
sp_add_to_hash(&Lex->spfuns, name);
if ($3)
$$= new Item_func_sp(name, *$3);
else
@ -6123,6 +6104,8 @@ show_param:
LEX *lex= Lex;
lex->sql_command= SQLCOM_SELECT;
lex->orig_sql_command= SQLCOM_SHOW_STATUS_PROC;
if (!sp_add_to_query_tables(YYTHD, lex, "mysql", "proc", TL_READ))
YYABORT;
if (prepare_schema_table(YYTHD, lex, 0, SCH_PROCEDURES))
YYABORT;
}
@ -6131,6 +6114,8 @@ show_param:
LEX *lex= Lex;
lex->sql_command= SQLCOM_SELECT;
lex->orig_sql_command= SQLCOM_SHOW_STATUS_FUNC;
if (!sp_add_to_query_tables(YYTHD, lex, "mysql", "proc", TL_READ))
YYABORT;
if (prepare_schema_table(YYTHD, lex, 0, SCH_PROCEDURES))
YYABORT;
};
@ -7434,7 +7419,14 @@ set_expr_or_default:
lock:
LOCK_SYM table_or_tables
{
Lex->sql_command=SQLCOM_LOCK_TABLES;
LEX *lex= Lex;
if (lex->sphead)
{
my_message(ER_SP_BADSTATEMENT, ER(ER_SP_BADSTATEMENT), MYF(0));
YYABORT;
}
lex->sql_command= SQLCOM_LOCK_TABLES;
}
table_lock_list
{}
@ -7464,7 +7456,19 @@ lock_option:
;
unlock:
UNLOCK_SYM table_or_tables { Lex->sql_command=SQLCOM_UNLOCK_TABLES; }
UNLOCK_SYM
{
LEX *lex= Lex;
if (lex->sphead)
{
my_message(ER_SP_BADSTATEMENT, ER(ER_SP_BADSTATEMENT), MYF(0));
YYABORT;
}
lex->sql_command= SQLCOM_UNLOCK_TABLES;
}
table_or_tables
{}
;