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nexedi
MariaDB
Commits
807b5085
Commit
807b5085
authored
May 27, 2002
by
unknown
Browse files
Options
Browse Files
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Plain Diff
Hiding internal pointers of SELECT_LEX structures
parent
e640e2e2
Changes
9
Show whitespace changes
Inline
Side-by-side
Showing
9 changed files
with
64 additions
and
37 deletions
+64
-37
sql/item_subselect.cc
sql/item_subselect.cc
+1
-1
sql/item_sum.cc
sql/item_sum.cc
+1
-1
sql/sql_derived.cc
sql/sql_derived.cc
+1
-1
sql/sql_lex.cc
sql/sql_lex.cc
+7
-6
sql/sql_lex.h
sql/sql_lex.h
+35
-9
sql/sql_parse.cc
sql/sql_parse.cc
+5
-5
sql/sql_select.cc
sql/sql_select.cc
+4
-4
sql/sql_union.cc
sql/sql_union.cc
+1
-1
sql/sql_yacc.yy
sql/sql_yacc.yy
+9
-9
No files found.
sql/item_subselect.cc
View file @
807b5085
...
@@ -108,7 +108,7 @@ bool Item_subselect::fix_fields(THD *thd,TABLE_LIST *tables)
...
@@ -108,7 +108,7 @@ bool Item_subselect::fix_fields(THD *thd,TABLE_LIST *tables)
(
ORDER
*
)
select_lex
->
group_list
.
first
,
(
ORDER
*
)
select_lex
->
group_list
.
first
,
select_lex
->
having
,
select_lex
->
having
,
(
ORDER
*
)
0
,
select_lex
,
(
ORDER
*
)
0
,
select_lex
,
(
SELECT_LEX_UNIT
*
)
select_lex
->
master
))
select_lex
->
master_unit
()
))
return
1
;
return
1
;
thd
->
lex
.
select
=
save_select
;
thd
->
lex
.
select
=
save_select
;
return
0
;
return
0
;
...
...
sql/item_sum.cc
View file @
807b5085
...
@@ -965,7 +965,7 @@ bool Item_sum_count_distinct::setup(THD *thd)
...
@@ -965,7 +965,7 @@ bool Item_sum_count_distinct::setup(THD *thd)
if
(
!
(
table
=
create_tmp_table
(
thd
,
tmp_table_param
,
list
,
(
ORDER
*
)
0
,
1
,
if
(
!
(
table
=
create_tmp_table
(
thd
,
tmp_table_param
,
list
,
(
ORDER
*
)
0
,
1
,
0
,
0
,
0
,
0
,
select_lex
->
options
|
thd
->
options
,
select_lex
->
options
|
thd
->
options
,
(
SELECT_LEX_UNIT
*
)
select_lex
->
master
)))
select_lex
->
master_unit
()
)))
return
1
;
return
1
;
table
->
file
->
extra
(
HA_EXTRA_NO_ROWS
);
// Don't update rows
table
->
file
->
extra
(
HA_EXTRA_NO_ROWS
);
// Don't update rows
table
->
no_rows
=
1
;
table
->
no_rows
=
1
;
...
...
sql/sql_derived.cc
View file @
807b5085
...
@@ -34,7 +34,7 @@ int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *unit, TABLE_LIST *t)
...
@@ -34,7 +34,7 @@ int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *unit, TABLE_LIST *t)
TODO: make derived tables with union inside (now only 1 SELECT may be
TODO: make derived tables with union inside (now only 1 SELECT may be
procesed)
procesed)
*/
*/
SELECT_LEX
*
sl
=
(
SELECT_LEX
*
)
unit
->
slave
;
SELECT_LEX
*
sl
=
unit
->
first_select
()
;
List
<
Item
>
item_list
;
List
<
Item
>
item_list
;
TABLE
*
table
;
TABLE
*
table
;
int
res
;
int
res
;
...
...
sql/sql_lex.cc
View file @
807b5085
...
@@ -1021,17 +1021,18 @@ bool st_select_lex_unit::create_total_list_n_last_return(THD *thd, st_lex *lex,
...
@@ -1021,17 +1021,18 @@ bool st_select_lex_unit::create_total_list_n_last_return(THD *thd, st_lex *lex,
TABLE_LIST
*
slave_list_first
=
0
,
**
slave_list_last
=
&
slave_list_first
;
TABLE_LIST
*
slave_list_first
=
0
,
**
slave_list_last
=
&
slave_list_first
;
TABLE_LIST
**
new_table_list
=
*
result
,
*
aux
;
TABLE_LIST
**
new_table_list
=
*
result
,
*
aux
;
SELECT_LEX
*
sl
=
(
SELECT_LEX
*
)
slave
;
SELECT_LEX
*
sl
=
(
SELECT_LEX
*
)
slave
;
for
(;
sl
;
sl
=
(
SELECT_LEX
*
)
sl
->
next
)
for
(;
sl
;
sl
=
sl
->
next_select
()
)
{
{
// check usage of ORDER BY in union
// check usage of ORDER BY in union
if
(
sl
->
order_list
.
first
&&
sl
->
next
&&
!
sl
->
braces
)
if
(
sl
->
order_list
.
first
&&
sl
->
next
_select
()
&&
!
sl
->
braces
)
{
{
net_printf
(
&
thd
->
net
,
ER_WRONG_USAGE
,
"UNION"
,
"ORDER BY"
);
net_printf
(
&
thd
->
net
,
ER_WRONG_USAGE
,
"UNION"
,
"ORDER BY"
);
return
1
;
return
1
;
}
}
if
(
sl
->
slave
)
for
(
SELECT_LEX_UNIT
*
inner
=
sl
->
first_inner_unit
();
if
(((
SELECT_LEX_UNIT
*
)
inner
;
sl
->
slave
)
->
create_total_list_n_last_return
(
thd
,
lex
,
inner
=
inner
->
next_unit
())
if
(
inner
->
create_total_list_n_last_return
(
thd
,
lex
,
&
slave_list_last
))
&
slave_list_last
))
return
1
;
return
1
;
if
((
aux
=
(
TABLE_LIST
*
)
sl
->
table_list
.
first
))
if
((
aux
=
(
TABLE_LIST
*
)
sl
->
table_list
.
first
))
...
...
sql/sql_lex.h
View file @
807b5085
...
@@ -186,11 +186,15 @@ enum sub_select_type {UNSPECIFIED_TYPE,UNION_TYPE, INTERSECT_TYPE,
...
@@ -186,11 +186,15 @@ enum sub_select_type {UNSPECIFIED_TYPE,UNION_TYPE, INTERSECT_TYPE,
Base class for st_select_lex (SELECT_LEX) &
Base class for st_select_lex (SELECT_LEX) &
st_select_lex_unit (SELECT_LEX_UNIT)
st_select_lex_unit (SELECT_LEX_UNIT)
*/
*/
struct
st_select_lex_node
{
class
st_select_lex_node
{
enum
sub_select_type
linkage
;
protected:
st_select_lex_node
*
next
,
**
prev
,
/* neighbor list */
st_select_lex_node
*
next
,
**
prev
,
/* neighbor list */
*
master
,
*
slave
,
/* vertical links */
*
master
,
*
slave
,
/* vertical links */
*
link_next
,
**
link_prev
;
/* list of whole SELECT_LEX */
*
link_next
,
**
link_prev
;
/* list of whole SELECT_LEX */
public:
ulong
options
;
enum
sub_select_type
linkage
;
//uint sort_default;
SQL_LIST
order_list
;
/* ORDER clause */
SQL_LIST
order_list
;
/* ORDER clause */
ha_rows
select_limit
,
offset_limit
;
/* LIMIT clause parameters */
ha_rows
select_limit
,
offset_limit
;
/* LIMIT clause parameters */
void
init_query
();
void
init_query
();
...
@@ -207,9 +211,10 @@ struct st_select_lex_node {
...
@@ -207,9 +211,10 @@ struct st_select_lex_node {
SELECT_LEX_UNIT - unit of selects (UNION, INTERSECT, ...) group
SELECT_LEX_UNIT - unit of selects (UNION, INTERSECT, ...) group
SELECT_LEXs
SELECT_LEXs
*/
*/
struct
st_lex
;
class
st_lex
;
struct
st_select_lex
;
class
st_select_lex
;
struct
st_select_lex_unit
:
public
st_select_lex_node
{
class
st_select_lex_unit
:
public
st_select_lex_node
{
public:
/*
/*
Pointer to 'last' select or pointer to unit where stored
Pointer to 'last' select or pointer to unit where stored
global parameters for union
global parameters for union
...
@@ -219,8 +224,11 @@ struct st_select_lex_unit: public st_select_lex_node {
...
@@ -219,8 +224,11 @@ struct st_select_lex_unit: public st_select_lex_node {
ha_rows
select_limit_cnt
,
offset_limit_cnt
;
ha_rows
select_limit_cnt
,
offset_limit_cnt
;
void
init_query
();
void
init_query
();
bool
create_total_list
(
THD
*
thd
,
st_lex
*
lex
,
TABLE_LIST
**
result
);
bool
create_total_list
(
THD
*
thd
,
st_lex
*
lex
,
TABLE_LIST
**
result
);
st_select_lex
*
outer_select
()
{
return
(
st_select_lex
*
)
master
;
}
st_select_lex
*
first_select
()
{
return
(
st_select_lex
*
)
slave
;
}
st_select_lex
*
first_select
()
{
return
(
st_select_lex
*
)
slave
;
}
st_select_lex_unit
*
next_unit
()
{
return
(
st_select_lex_unit
*
)
next
;
}
st_select_lex_unit
*
next_unit
()
{
return
(
st_select_lex_unit
*
)
next
;
}
friend
void
mysql_init_query
(
THD
*
thd
);
private:
private:
bool
create_total_list_n_last_return
(
THD
*
thd
,
st_lex
*
lex
,
bool
create_total_list_n_last_return
(
THD
*
thd
,
st_lex
*
lex
,
TABLE_LIST
***
result
);
TABLE_LIST
***
result
);
...
@@ -230,10 +238,10 @@ typedef struct st_select_lex_unit SELECT_LEX_UNIT;
...
@@ -230,10 +238,10 @@ typedef struct st_select_lex_unit SELECT_LEX_UNIT;
/*
/*
SELECT_LEX - store information of parsed SELECT_LEX statment
SELECT_LEX - store information of parsed SELECT_LEX statment
*/
*/
struct
st_select_lex
:
public
st_select_lex_node
{
class
st_select_lex
:
public
st_select_lex_node
{
public:
char
*
db
,
*
db1
,
*
table1
,
*
db2
,
*
table2
;
/* For outer join using .. */
char
*
db
,
*
db1
,
*
table1
,
*
db2
,
*
table2
;
/* For outer join using .. */
Item
*
where
,
*
having
;
/* WHERE & HAVING clauses */
Item
*
where
,
*
having
;
/* WHERE & HAVING clauses */
ulong
options
;
List
<
List_item
>
expr_list
;
List
<
List_item
>
expr_list
;
List
<
List_item
>
when_list
;
/* WHEN clause */
List
<
List_item
>
when_list
;
/* WHEN clause */
SQL_LIST
table_list
,
group_list
;
/* FROM & GROUP BY clauses */
SQL_LIST
table_list
,
group_list
;
/* FROM & GROUP BY clauses */
...
@@ -241,14 +249,32 @@ struct st_select_lex: public st_select_lex_node {
...
@@ -241,14 +249,32 @@ struct st_select_lex: public st_select_lex_node {
List
<
String
>
interval_list
,
use_index
,
*
use_index_ptr
,
List
<
String
>
interval_list
,
use_index
,
*
use_index_ptr
,
ignore_index
,
*
ignore_index_ptr
;
ignore_index
,
*
ignore_index_ptr
;
List
<
Item_func_match
>
ftfunc_list
;
List
<
Item_func_match
>
ftfunc_list
;
uint
in_sum_expr
,
sort_default
;
uint
in_sum_expr
;
bool
create_refs
,
bool
create_refs
,
braces
,
/* SELECT ... UNION (SELECT ... ) <- this braces */
braces
,
/* SELECT ... UNION (SELECT ... ) <- this braces */
depended
;
/* depended from outer select subselect */
depended
;
/* depended from outer select subselect */
void
init_query
();
void
init_query
();
void
init_select
();
void
init_select
();
st_select_lex
*
outer_select
()
{
return
(
st_select_lex
*
)
master
->
master
;
}
st_select_lex_unit
*
master_unit
()
{
return
(
st_select_lex_unit
*
)
master
;
}
st_select_lex_unit
*
first_inner_unit
()
{
return
(
st_select_lex_unit
*
)
slave
;
}
st_select_lex
*
outer_select
()
{
return
(
st_select_lex
*
)
master_unit
()
->
outer_select
();
}
st_select_lex
*
next_select
()
{
return
(
st_select_lex
*
)
next
;
}
st_select_lex
*
next_select
()
{
return
(
st_select_lex
*
)
next
;
}
st_select_lex
*
next_select_in_list
()
{
return
(
st_select_lex
*
)
link_next
;
}
st_select_lex_node
**
next_select_in_list_addr
()
{
return
&
link_next
;
}
friend
void
mysql_init_query
(
THD
*
thd
);
};
};
typedef
struct
st_select_lex
SELECT_LEX
;
typedef
struct
st_select_lex
SELECT_LEX
;
...
...
sql/sql_parse.cc
View file @
807b5085
...
@@ -65,7 +65,7 @@ static void decrease_user_connections(UC *uc);
...
@@ -65,7 +65,7 @@ static void decrease_user_connections(UC *uc);
static
bool
check_db_used
(
THD
*
thd
,
TABLE_LIST
*
tables
);
static
bool
check_db_used
(
THD
*
thd
,
TABLE_LIST
*
tables
);
static
bool
check_merge_table_access
(
THD
*
thd
,
char
*
db
,
TABLE_LIST
*
tables
);
static
bool
check_merge_table_access
(
THD
*
thd
,
char
*
db
,
TABLE_LIST
*
tables
);
static
bool
check_dup
(
const
char
*
db
,
const
char
*
name
,
TABLE_LIST
*
tables
);
static
bool
check_dup
(
const
char
*
db
,
const
char
*
name
,
TABLE_LIST
*
tables
);
static
void
mysql_init_query
(
THD
*
thd
);
void
mysql_init_query
(
THD
*
thd
);
static
void
remove_escape
(
char
*
name
);
static
void
remove_escape
(
char
*
name
);
static
void
refresh_status
(
void
);
static
void
refresh_status
(
void
);
static
bool
append_file_to_dir
(
THD
*
thd
,
char
**
filename_ptr
,
static
bool
append_file_to_dir
(
THD
*
thd
,
char
**
filename_ptr
,
...
@@ -1246,7 +1246,7 @@ mysql_execute_command(void)
...
@@ -1246,7 +1246,7 @@ mysql_execute_command(void)
cursor
))
cursor
))
DBUG_VOID_RETURN
;
DBUG_VOID_RETURN
;
}
}
if
((
lex
->
select_lex
.
link_next
&&
if
((
lex
->
select_lex
.
next_select_in_list
()
&&
lex
->
unit
.
create_total_list
(
thd
,
lex
,
&
tables
))
||
lex
->
unit
.
create_total_list
(
thd
,
lex
,
&
tables
))
||
(
table_rules_on
&&
tables
&&
thd
->
slave_thread
&&
(
table_rules_on
&&
tables
&&
thd
->
slave_thread
&&
!
tables_ok
(
thd
,
tables
)))
!
tables_ok
(
thd
,
tables
)))
...
@@ -2664,7 +2664,7 @@ bool my_yyoverflow(short **yyss, YYSTYPE **yyvs, int *yystacksize)
...
@@ -2664,7 +2664,7 @@ bool my_yyoverflow(short **yyss, YYSTYPE **yyvs, int *yystacksize)
Initialize global thd variables needed for query
Initialize global thd variables needed for query
****************************************************************************/
****************************************************************************/
static
void
void
mysql_init_query
(
THD
*
thd
)
mysql_init_query
(
THD
*
thd
)
{
{
DBUG_ENTER
(
"mysql_init_query"
);
DBUG_ENTER
(
"mysql_init_query"
);
...
@@ -2720,8 +2720,8 @@ mysql_new_select(LEX *lex, bool move_down)
...
@@ -2720,8 +2720,8 @@ mysql_new_select(LEX *lex, bool move_down)
else
else
select_lex
->
include_neighbour
(
lex
->
select
);
select_lex
->
include_neighbour
(
lex
->
select
);
((
SELECT_LEX_UNIT
*
)
select_lex
->
master
)
->
global_parameters
=
select_lex
;
select_lex
->
master_unit
(
)
->
global_parameters
=
select_lex
;
select_lex
->
include_global
(
&
lex
->
select
->
link_next
);
select_lex
->
include_global
(
lex
->
select
->
next_select_in_list_addr
()
);
lex
->
select
=
select_lex
;
lex
->
select
=
select_lex
;
return
0
;
return
0
;
}
}
...
...
sql/sql_select.cc
View file @
807b5085
...
@@ -156,12 +156,12 @@ int handle_select(THD *thd, LEX *lex, select_result *result)
...
@@ -156,12 +156,12 @@ int handle_select(THD *thd, LEX *lex, select_result *result)
{
{
int
res
;
int
res
;
register
SELECT_LEX
*
select_lex
=
&
lex
->
select_lex
;
register
SELECT_LEX
*
select_lex
=
&
lex
->
select_lex
;
if
(
select_lex
->
link_next
)
if
(
select_lex
->
next_select_in_list
()
)
{
{
/* Fix tables 'to-be-unioned-from' list to point at opened tables */
/* Fix tables 'to-be-unioned-from' list to point at opened tables */
for
(
SELECT_LEX
*
sl
=
select_lex
;
for
(
SELECT_LEX
*
sl
=
select_lex
;
sl
;
sl
;
sl
=
(
SELECT_LEX
*
)
sl
->
link_next
)
sl
=
sl
->
next_select_in_list
()
)
{
{
for
(
TABLE_LIST
*
cursor
=
(
TABLE_LIST
*
)
sl
->
table_list
.
first
;
for
(
TABLE_LIST
*
cursor
=
(
TABLE_LIST
*
)
sl
->
table_list
.
first
;
cursor
;
cursor
;
...
@@ -169,7 +169,7 @@ int handle_select(THD *thd, LEX *lex, select_result *result)
...
@@ -169,7 +169,7 @@ int handle_select(THD *thd, LEX *lex, select_result *result)
cursor
->
table
=
cursor
->
table_list
->
table
;
cursor
->
table
=
cursor
->
table_list
->
table
;
}
}
}
}
if
(
select_lex
->
next
)
if
(
select_lex
->
next
_select
()
)
res
=
mysql_union
(
thd
,
lex
,
result
);
res
=
mysql_union
(
thd
,
lex
,
result
);
else
else
res
=
mysql_select
(
thd
,(
TABLE_LIST
*
)
select_lex
->
table_list
.
first
,
res
=
mysql_select
(
thd
,(
TABLE_LIST
*
)
select_lex
->
table_list
.
first
,
...
@@ -7275,7 +7275,7 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
...
@@ -7275,7 +7275,7 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
result
->
send_error
(
0
,
NullS
);
result
->
send_error
(
0
,
NullS
);
}
}
}
}
if
(
!
join
->
thd
->
lex
.
select
->
next
)
if
(
!
join
->
thd
->
lex
.
select
->
next
_select
()
)
{
{
save_lock
=
thd
->
lock
;
save_lock
=
thd
->
lock
;
thd
->
lock
=
(
MYSQL_LOCK
*
)
0
;
thd
->
lock
=
(
MYSQL_LOCK
*
)
0
;
...
...
sql/sql_union.cc
View file @
807b5085
...
@@ -104,7 +104,7 @@ int mysql_union(THD *thd, LEX *lex,select_result *result)
...
@@ -104,7 +104,7 @@ int mysql_union(THD *thd, LEX *lex,select_result *result)
}
}
union_result
->
save_time_stamp
=!
describe
;
union_result
->
save_time_stamp
=!
describe
;
for
(
sl
=
&
lex
->
select_lex
;
sl
;
sl
=
(
SELECT_LEX
*
)
sl
->
next
)
for
(
sl
=
&
lex
->
select_lex
;
sl
;
sl
=
sl
->
next_select
()
)
{
{
lex
->
select
=
sl
;
lex
->
select
=
sl
;
unit
->
offset_limit_cnt
=
sl
->
offset_limit
;
unit
->
offset_limit_cnt
=
sl
->
offset_limit
;
...
...
sql/sql_yacc.yy
View file @
807b5085
...
@@ -1477,8 +1477,8 @@ select_init:
...
@@ -1477,8 +1477,8 @@ select_init:
SELECT_LEX * sel=Select;
SELECT_LEX * sel=Select;
sel->braces=true;
sel->braces=true;
/* select in braces, can't contain global parameters */
/* select in braces, can't contain global parameters */
((SELECT_LEX_UNIT*)sel->master
)->global_parameters=
sel->master_unit(
)->global_parameters=
sel->master
;
sel->master_unit()
;
} union_opt
} union_opt
...
@@ -2186,8 +2186,8 @@ join_table:
...
@@ -2186,8 +2186,8 @@ join_table:
| '(' SELECT_SYM select_part3 ')' opt_table_alias
| '(' SELECT_SYM select_part3 ')' opt_table_alias
{
{
LEX *lex=Lex;
LEX *lex=Lex;
SELECT_LEX_UNIT *unit=
(SELECT_LEX_UNIT*) lex->select->master
;
SELECT_LEX_UNIT *unit=
lex->select->master_unit()
;
lex->select=
(SELECT_LEX*) unit->master
;
lex->select=
unit->outer_select()
;
if (!($$= add_table_to_list(new Table_ident(unit),
if (!($$= add_table_to_list(new Table_ident(unit),
$5,0,TL_UNLOCK)))
$5,0,TL_UNLOCK)))
YYABORT;
YYABORT;
...
@@ -2325,7 +2325,7 @@ order_clause:
...
@@ -2325,7 +2325,7 @@ order_clause:
LEX *lex=Lex;
LEX *lex=Lex;
if (lex->sql_command == SQLCOM_MULTI_UPDATE)
if (lex->sql_command == SQLCOM_MULTI_UPDATE)
YYABORT;
YYABORT;
lex->select->sort_default=1;
/*lex->select->sort_default=1;*/
} order_list
} order_list
order_list:
order_list:
...
@@ -3859,13 +3859,13 @@ optional_order_or_limit:
...
@@ -3859,13 +3859,13 @@ optional_order_or_limit:
LEX *lex=Lex;
LEX *lex=Lex;
if (!lex->select->braces)
if (!lex->select->braces)
YYABORT;
YYABORT;
((SELECT_LEX_UNIT*)lex->select->master
)->global_parameters=
lex->select->master_unit(
)->global_parameters=
lex->select->master;
lex->select->master
_unit()
;
/*
/*
Following type conversion looks like hack, but all that need SELECT_LEX
Following type conversion looks like hack, but all that need SELECT_LEX
fields always check linkage type.
fields always check linkage type.
*/
*/
lex->select= (SELECT_LEX*)lex->select->master;
lex->select= (SELECT_LEX*)lex->select->master
_unit()
;
lex->select->select_limit=lex->thd->default_select_limit;
lex->select->select_limit=lex->thd->default_select_limit;
}
}
opt_order_clause limit_clause
opt_order_clause limit_clause
...
@@ -3898,5 +3898,5 @@ subselect_end:
...
@@ -3898,5 +3898,5 @@ subselect_end:
')'
')'
{
{
LEX *lex=Lex;
LEX *lex=Lex;
lex->select =
(SELECT_LEX*)lex->select->master->master
;
lex->select =
lex->select->outer_select()
;
}
}
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