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Commit 05bef788 authored by Kristofer.Pettersson@naruto's avatar Kristofer.Pettersson@naruto
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Bug#20777 Function w BIGINT UNSIGNED shows diff. behaviour with and without --ps-protocol 

- Stored procedures returning unsinged values returns signed values if
  text protocol is used. The reason is that the stored proceedure item
  Item_func_sp wasn't initializing the member variables properly based
  on the information contained in the associated result field.
- The patch is to upon field-item association, ::fix_fields, initialize
  the member variables in appropriate order.
- Field type of an Item_func_sp was hard coded to MYSQL_TYPE_VARCHAR.
  This is changed to return the type of the actual result field.
- Member function name sp_result_field was refactored to the more 
  appropriate init_result_field.
- Member function name find_and_check_access was refactored to 
  sp_check_access.
parent c84ee707
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Showing with 315 additions and 181 deletions
mysql-test/r/sp.result
View file @ 05bef788
......@@ -5741,4 +5741,92 @@ END|
CALL bug24117()|
DROP PROCEDURE bug24117|
DROP TABLE t3|
drop function if exists bug20777|
drop table if exists examplebug20777|
create function bug20777(f1 bigint unsigned) returns bigint unsigned
begin
set f1 = (f1 - 10); set f1 = (f1 + 10);
return f1;
end|
select bug20777(9223372036854775803) as '9223372036854775803 2**63-5';
9223372036854775803 2**63-5
9223372036854775803
select bug20777(9223372036854775804) as '9223372036854775804 2**63-4';
9223372036854775804 2**63-4
9223372036854775804
select bug20777(9223372036854775805) as '9223372036854775805 2**63-3';
9223372036854775805 2**63-3
9223372036854775805
select bug20777(9223372036854775806) as '9223372036854775806 2**63-2';
9223372036854775806 2**63-2
9223372036854775806
select bug20777(9223372036854775807) as '9223372036854775807 2**63-1';
9223372036854775807 2**63-1
9223372036854775807
select bug20777(9223372036854775808) as '9223372036854775808 2**63+0';
9223372036854775808 2**63+0
9223372036854775808
select bug20777(9223372036854775809) as '9223372036854775809 2**63+1';
9223372036854775809 2**63+1
9223372036854775809
select bug20777(9223372036854775810) as '9223372036854775810 2**63+2';
9223372036854775810 2**63+2
9223372036854775810
select bug20777(-9223372036854775808) as 'lower bounds signed bigint';
lower bounds signed bigint
0
select bug20777(9223372036854775807) as 'upper bounds signed bigint';
upper bounds signed bigint
9223372036854775807
select bug20777(0) as 'lower bounds unsigned bigint';
lower bounds unsigned bigint
0
select bug20777(18446744073709551615) as 'upper bounds unsigned bigint';
upper bounds unsigned bigint
18446744073709551615
select bug20777(18446744073709551616) as 'upper bounds unsigned bigint + 1';
upper bounds unsigned bigint + 1
18446744073709551615
select bug20777(-1) as 'lower bounds unsigned bigint - 1';
lower bounds unsigned bigint - 1
0
select bug20777(1.84e+19) as 'submitter value, 1.84e19';
submitter value, 1.84e19
9223372036854775808
create table examplebug20777 as select
0 as 'i',
bug20777(9223372036854775806) as '2**63-2',
bug20777(9223372036854775807) as '2**63-1',
bug20777(9223372036854775808) as '2**63',
bug20777(9223372036854775809) as '2**63+1',
bug20777(18446744073709551614) as '2**64-2',
bug20777(18446744073709551615) as '2**64-1',
bug20777(18446744073709551616) as '2**64',
bug20777(0) as '0',
bug20777(-1) as '-1';
insert into examplebug20777 values (1, 9223372036854775806, 9223372036854775807, 223372036854775808, 9223372036854775809, 18446744073709551614, 18446744073709551615, 8446744073709551616, 0, -1);
show create table examplebug20777;
Table Create Table
examplebug20777 CREATE TABLE `examplebug20777` (
`i` int(1) NOT NULL default '0',
`2**63-2` bigint(20) unsigned default NULL,
`2**63-1` bigint(20) unsigned default NULL,
`2**63` bigint(20) unsigned default NULL,
`2**63+1` bigint(20) unsigned default NULL,
`2**64-2` bigint(20) unsigned default NULL,
`2**64-1` bigint(20) unsigned default NULL,
`2**64` bigint(20) unsigned default NULL,
`0` bigint(20) unsigned default NULL,
`-1` bigint(20) unsigned default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select * from examplebug20777 order by i;
i 2**63-2 2**63-1 2**63 2**63+1 2**64-2 2**64-1 2**64 0 -1
0 9223372036854775806 9223372036854775807 9223372036854775808 9223372036854775809 18446744073709551614 18446744073709551615 18446744073709551615 0 0
1 9223372036854775806 9223372036854775807 223372036854775808 9223372036854775809 18446744073709551614 18446744073709551615 8446744073709551616 0 0
drop table examplebug20777;
select bug20777(18446744073709551613)+1;
bug20777(18446744073709551613)+1
18446744073709551614
drop function bug20777;
End of 5.0 tests.
drop table t1,t2;
mysql-test/t/sp.test
View file @ 05bef788
......@@ -6715,9 +6715,56 @@ DROP PROCEDURE bug24117|
DROP TABLE t3|
#
# NOTE: The delimiter is `|`, and not `;`. It is changed to `;`
# at the end of the file!
# Bug#20777: Function w BIGINT UNSIGNED shows diff. behaviour --ps-protocol
#
--disable_warnings
drop function if exists bug20777|
drop table if exists examplebug20777|
--enabled_warnings
create function bug20777(f1 bigint unsigned) returns bigint unsigned
begin
set f1 = (f1 - 10); set f1 = (f1 + 10);
return f1;
end|
delimiter ;|
select bug20777(9223372036854775803) as '9223372036854775803 2**63-5';
select bug20777(9223372036854775804) as '9223372036854775804 2**63-4';
select bug20777(9223372036854775805) as '9223372036854775805 2**63-3';
select bug20777(9223372036854775806) as '9223372036854775806 2**63-2';
select bug20777(9223372036854775807) as '9223372036854775807 2**63-1';
select bug20777(9223372036854775808) as '9223372036854775808 2**63+0';
select bug20777(9223372036854775809) as '9223372036854775809 2**63+1';
select bug20777(9223372036854775810) as '9223372036854775810 2**63+2';
select bug20777(-9223372036854775808) as 'lower bounds signed bigint';
select bug20777(9223372036854775807) as 'upper bounds signed bigint';
select bug20777(0) as 'lower bounds unsigned bigint';
select bug20777(18446744073709551615) as 'upper bounds unsigned bigint';
select bug20777(18446744073709551616) as 'upper bounds unsigned bigint + 1';
select bug20777(-1) as 'lower bounds unsigned bigint - 1';
select bug20777(1.84e+19) as 'submitter value, 1.84e19';
create table examplebug20777 as select
0 as 'i',
bug20777(9223372036854775806) as '2**63-2',
bug20777(9223372036854775807) as '2**63-1',
bug20777(9223372036854775808) as '2**63',
bug20777(9223372036854775809) as '2**63+1',
bug20777(18446744073709551614) as '2**64-2',
bug20777(18446744073709551615) as '2**64-1',
bug20777(18446744073709551616) as '2**64',
bug20777(0) as '0',
bug20777(-1) as '-1';
insert into examplebug20777 values (1, 9223372036854775806, 9223372036854775807, 223372036854775808, 9223372036854775809, 18446744073709551614, 18446744073709551615, 8446744073709551616, 0, -1);
show create table examplebug20777;
select * from examplebug20777 order by i;
drop table examplebug20777;
select bug20777(18446744073709551613)+1;
drop function bug20777;
delimiter |;
###
--echo End of 5.0 tests.
#
# BUG#NNNN: New bug synopsis
......@@ -6726,8 +6773,13 @@ DROP TABLE t3|
#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).
# practical, or create table t3,t4 etc temporarily (and drop them).
# NOTE: The delimiter is `|`, and not `;`. It is changed to `;`
# at the end of the file!
#
delimiter ;|
drop table t1,t2;
sql/item_func.cc
View file @ 05bef788
This diff is collapsed.
sql/item_func.h
View file @ 05bef788
......@@ -1405,12 +1405,15 @@ class Item_func_sp :public Item_func
sp_name *m_name;
mutable sp_head *m_sp;
TABLE *dummy_table;
Field *result_field;
char result_buf[64];
/*
The result field of the concrete stored function.
*/
Field *sp_result_field;
bool execute(Field **flp);
bool execute_impl(THD *thd, Field *return_value_fld);
Field *sp_result_field(void) const;
bool execute();
bool execute_impl(THD *thd);
bool init_result_field(THD *thd);
public:
......@@ -1436,23 +1439,23 @@ class Item_func_sp :public Item_func
longlong val_int()
{
if (execute(&result_field))
if (execute())
return (longlong) 0;
return result_field->val_int();
return sp_result_field->val_int();
}
double val_real()
{
if (execute(&result_field))
if (execute())
return 0.0;
return result_field->val_real();
return sp_result_field->val_real();
}
my_decimal *val_decimal(my_decimal *dec_buf)
{
if (execute(&result_field))
if (execute())
return NULL;
return result_field->val_decimal(dec_buf);
return sp_result_field->val_decimal(dec_buf);
}
String *val_str(String *str)
......@@ -1461,7 +1464,7 @@ class Item_func_sp :public Item_func
char buff[20];
buf.set(buff, 20, str->charset());
buf.length(0);
if (execute(&result_field))
if (execute())
return NULL;
/*
result_field will set buf pointing to internal buffer
......@@ -1469,7 +1472,7 @@ class Item_func_sp :public Item_func
when SP is executed. In order to prevent occasional
corruption of returned value, we make here a copy.
*/
result_field->val_str(&buf);
sp_result_field->val_str(&buf);
str->copy(buf);
return str;
}
......@@ -1477,11 +1480,11 @@ class Item_func_sp :public Item_func
virtual bool change_context_processor(byte *cntx)
{ context= (Name_resolution_context *)cntx; return FALSE; }
void fix_length_and_dec();
bool find_and_check_access(THD * thd);
bool sp_check_access(THD * thd);
virtual enum Functype functype() const { return FUNC_SP; }
bool fix_fields(THD *thd, Item **ref);
void fix_length_and_dec(void);
bool is_expensive() { return 1; }
};
......
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