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type of parameter assignment for parameters from variables added (BUG#4280)

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mysql-test/r/ps.result:
  parameters from variables (for field creation)
mysql-test/t/ps.test:
  parameters from variables (for field creation)
sql/item.cc:
  type of parameter assignment for parameters from variables
sql/item.h:
  removed spaces at line ends in Item_param definition
This commit is contained in:
unknown 2004-06-25 15:16:00 +03:00
parent d1e4305187
commit ef0b6f0703
4 changed files with 42 additions and 10 deletions
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14
mysql-test/r/ps.result
View file

@ -137,3 +137,17 @@ execute stmt1;
FOUND_ROWS()
0
deallocate prepare stmt1;
drop table t1;
set @arg00=1;
prepare stmt1 from ' create table t1 (m int) as select 1 as m ' ;
execute stmt1 ;
select m from t1;
m
1
drop table t1;
prepare stmt1 from ' create table t1 (m int) as select ? as m ' ;
execute stmt1 using @arg00;
select m from t1;
m
1
drop table t1;

14
mysql-test/t/ps.test
View file

@ -140,3 +140,17 @@ execute stmt1;
# Expect 0
execute stmt1;
deallocate prepare stmt1;
drop table t1;
#
# parameters from variables (for field creation)
#
set @arg00=1;
prepare stmt1 from ' create table t1 (m int) as select 1 as m ' ;
execute stmt1 ;
select m from t1;
drop table t1;
prepare stmt1 from ' create table t1 (m int) as select ? as m ' ;
execute stmt1 using @arg00;
select m from t1;
drop table t1;

4
sql/item.cc
View file

@ -759,9 +759,13 @@ bool Item_param::set_from_user_var(THD *thd, const user_var_entry *entry)
switch (entry->type) {
case REAL_RESULT:
set_double(*(double*)entry->value);
item_type= Item::REAL_ITEM;
item_result_type= REAL_RESULT;
break;
case INT_RESULT:
set_int(*(longlong*)entry->value, 21);
item_type= Item::INT_ITEM;
item_result_type= INT_RESULT;
break;
case STRING_RESULT:
{

20
sql/item.h
View file

@ -422,7 +422,7 @@ public:
class Item_param :public Item
{
public:
public:
enum enum_item_param_state
{
NO_VALUE, NULL_VALUE, INT_VALUE, REAL_VALUE,
@ -442,8 +442,8 @@ public:
String str_value_ptr;
union
{
longlong integer;
double real;
longlong integer;
double real;
/*
Character sets conversion info for string values.
Character sets of client and connection defined at bind time are used
@ -456,7 +456,7 @@ public:
/*
This points at character set of connection if conversion
to it is required (i. e. if placeholder typecode is not BLOB).
Otherwise it's equal to character_set_client (to simplify
Otherwise it's equal to character_set_client (to simplify
check in convert_str_value()).
*/
CHARSET_INFO *final_character_set_of_str_value;
@ -477,10 +477,10 @@ public:
supply for this placeholder in mysql_stmt_execute.
*/
enum enum_field_types param_type;
/*
/*
Offset of placeholder inside statement text. Used to create
no-placeholders version of this statement for the binary log.
*/
*/
uint pos_in_query;
Item_param(uint pos_in_query_arg);
@ -515,11 +515,11 @@ public:
const String *query_val_str(String *str) const;
bool convert_str_value(THD *thd);
Item *new_item() { return new Item_param(pos_in_query); }
/*
If value for parameter was not set we treat it as non-const
so noone will use parameters value in fix_fields still
/*
If value for parameter was not set we treat it as non-const
so noone will use parameters value in fix_fields still
parameter is constant during execution.
*/
virtual table_map used_tables() const