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Merge rurik.mysql.com:/home/igor/dev/mysql-5.0-0

Browse source 
into  rurik.mysql.com:/home/igor/dev/mysql-5.1-0
This commit is contained in:
igor@rurik.mysql.com 2006-04-01 02:57:56 -08:00
commit d6af1b6e39
20 changed files with 287 additions and 32 deletions
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46
mysql-test/r/ctype_utf8.result
View file

@ -1066,6 +1066,52 @@ LENGTH(bug)
100
DROP TABLE t2;
DROP TABLE t1;
SET NAMES utf8;
DROP TABLE IF EXISTS t1;
Warnings:
Note 1051 Unknown table 't1'
CREATE TABLE t1(a VARCHAR(255), KEY(a)) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb');
INSERT INTO t1 VALUES('uu');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uU');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uu');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uuABC');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('UuABC');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uuABC');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
alter table t1 add b int;
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',1);
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',2);
delete from t1 where b=1;
INSERT INTO t1 VALUES('UUABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',1);
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',3);
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',4);
delete from t1 where b=3;
INSERT INTO t1 VALUES('uUABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',3);
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
drop table t1;
CREATE TABLE t1(id varchar(20) NOT NULL) DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES ('xxx'), ('aa'), ('yyy'), ('aa');
SELECT id FROM t1;

15
mysql-test/r/func_gconcat.result
View file

@ -596,6 +596,21 @@ GROUP_CONCAT(a ORDER BY a)
,x
,z
DROP TABLE t1;
create table t1(f1 int);
insert into t1 values(1),(2),(3);
select f1, group_concat(f1+1) from t1 group by f1 with rollup;
f1 group_concat(f1+1)
1 2
2 3
3 4
NULL 2,3,4
select count(distinct (f1+1)) from t1 group by f1 with rollup;
count(distinct (f1+1))
1
1
1
3
drop table t1;
set names latin1;
create table t1 (a char, b char);
insert into t1 values ('a', 'a'), ('a', 'b'), ('b', 'a'), ('b', 'b');

2
mysql-test/r/having.result
View file

@ -12,7 +12,7 @@ explain extended select count(a) as b from t1 where a=0 having b >=0;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1003 select count(`test`.`t1`.`a`) AS `b` from `test`.`t1` where (`test`.`t1`.`a` = 0) having (count(`test`.`t1`.`a`) >= 0)
Note 1003 select count(`test`.`t1`.`a`) AS `b` from `test`.`t1` where 0 having (count(`test`.`t1`.`a`) >= 0)
drop table t1;
CREATE TABLE t1 (
raw_id int(10) NOT NULL default '0',

19
mysql-test/r/select.result
View file

@ -3371,3 +3371,22 @@ NULL a NULL
drop table t1,t2;
select * from (select * left join t on f1=f2) tt;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'on f1=f2) tt' at line 1
CREATE TABLE t1 (sku int PRIMARY KEY, pr int);
CREATE TABLE t2 (sku int PRIMARY KEY, sppr int, name varchar(255));
INSERT INTO t1 VALUES
(10, 10), (20, 10), (30, 20), (40, 30), (50, 10), (60, 10);
INSERT INTO t2 VALUES
(10, 10, 'aaa'), (20, 10, 'bbb'), (30, 10, 'ccc'), (40, 20, 'ddd'),
(50, 10, 'eee'), (60, 20, 'fff'), (70, 20, 'ggg'), (80, 30, 'hhh');
SELECT t2.sku, t2.sppr, t2.name, t1.sku, t1.pr
FROM t2, t1 WHERE t2.sku=20 AND (t2.sku=t1.sku OR t2.sppr=t1.sku);
sku sppr name sku pr
20 10 bbb 10 10
20 10 bbb 20 10
EXPLAIN
SELECT t2.sku, t2.sppr, t2.name, t1.sku, t1.pr
FROM t2, t1 WHERE t2.sku=20 AND (t2.sku=t1.sku OR t2.sppr=t1.sku);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 const PRIMARY PRIMARY 4 const 1
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 2 Using where
DROP TABLE t1,t2;

2
mysql-test/r/subselect.result
View file

@ -547,7 +547,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 const PRIMARY,numreponse PRIMARY 7 const,const 1 Using index
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
Warnings:
Note 1003 select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numreponse` = (select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = _latin1'1'))) and (`test`.`t1`.`numeropost` = _latin1'1'))
Note 1003 select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numeropost` = _latin1'1'))
drop table t1;
CREATE TABLE t1 (a int(1));
INSERT INTO t1 VALUES (1);

2
mysql-test/r/varbinary.result
View file

@ -15,7 +15,7 @@ explain extended select * from t1 where UNIQ=0x38afba1d73e6a18a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const UNIQ UNIQ 8 const 1
Warnings:
Note 1003 select `test`.`t1`.`ID` AS `ID`,`test`.`t1`.`UNIQ` AS `UNIQ` from `test`.`t1` where (`test`.`t1`.`UNIQ` = 4084688022709641610)
Note 1003 select `test`.`t1`.`ID` AS `ID`,`test`.`t1`.`UNIQ` AS `UNIQ` from `test`.`t1` where 1
drop table t1;
select x'hello';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'x'hello'' at line 1

34
mysql-test/t/ctype_utf8.test
View file

@ -878,6 +878,40 @@ SELECT LENGTH(bug) FROM t2;
DROP TABLE t2;
DROP TABLE t1;
#
# Bug#17705: Corruption of compressed index when index length changes between
# 254 and 256
#
SET NAMES utf8;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a VARCHAR(255), KEY(a)) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb');
INSERT INTO t1 VALUES('uu');
check table t1;
INSERT INTO t1 VALUES('uU');
check table t1;
INSERT INTO t1 VALUES('uu');
check table t1;
INSERT INTO t1 VALUES('uuABC');
check table t1;
INSERT INTO t1 VALUES('UuABC');
check table t1;
INSERT INTO t1 VALUES('uuABC');
check table t1;
alter table t1 add b int;
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',1);
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',2);
delete from t1 where b=1;
INSERT INTO t1 VALUES('UUABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',1);
check table t1;
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',3);
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',4);
delete from t1 where b=3;
INSERT INTO t1 VALUES('uUABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',3);
check table t1;
drop table t1;
# End of 4.1 tests
#

8
mysql-test/t/func_gconcat.test
View file

@ -389,6 +389,14 @@ SELECT GROUP_CONCAT(a ORDER BY a) FROM t1 GROUP BY id;
DROP TABLE t1;
#
# Bug #15560: GROUP_CONCAT wasn't ready for WITH ROLLUP queries
#
create table t1(f1 int);
insert into t1 values(1),(2),(3);
select f1, group_concat(f1+1) from t1 group by f1 with rollup;
select count(distinct (f1+1)) from t1 group by f1 with rollup;
drop table t1;
# End of 4.1 tests
#

23
mysql-test/t/select.test
View file

@ -2848,3 +2848,26 @@ drop table t1,t2;
#
--error 1064
select * from (select * left join t on f1=f2) tt;
#
# Bug #16504: re-evaluation of Item_equal object after reading const table
#
CREATE TABLE t1 (sku int PRIMARY KEY, pr int);
CREATE TABLE t2 (sku int PRIMARY KEY, sppr int, name varchar(255));
INSERT INTO t1 VALUES
(10, 10), (20, 10), (30, 20), (40, 30), (50, 10), (60, 10);
INSERT INTO t2 VALUES
(10, 10, 'aaa'), (20, 10, 'bbb'), (30, 10, 'ccc'), (40, 20, 'ddd'),
(50, 10, 'eee'), (60, 20, 'fff'), (70, 20, 'ggg'), (80, 30, 'hhh');
SELECT t2.sku, t2.sppr, t2.name, t1.sku, t1.pr
FROM t2, t1 WHERE t2.sku=20 AND (t2.sku=t1.sku OR t2.sppr=t1.sku);
EXPLAIN
SELECT t2.sku, t2.sppr, t2.name, t1.sku, t1.pr
FROM t2, t1 WHERE t2.sku=20 AND (t2.sku=t1.sku OR t2.sppr=t1.sku);
DROP TABLE t1,t2;

2
sql/ha_heap.cc
View file

@ -561,7 +561,7 @@ ha_rows ha_heap::records_in_range(uint inx, key_range *min_key,
return records;
/* Assert that info() did run. We need current statistics here. */
DBUG_ASSERT(key_stat_version);
DBUG_ASSERT(key_stat_version == file->s->key_stat_version);
return key->rec_per_key[key->key_parts-1];
}

2
sql/item.cc
View file

@ -3756,7 +3756,7 @@ Item *Item_field::replace_equal_field(byte *arg)
if (item_equal)
{
Item_field *subst= item_equal->get_first();
if (!field->eq(subst->field))
if (subst && !field->eq(subst->field))
return subst;
}
return this;

37
sql/item_cmpfunc.cc
View file

@ -3602,7 +3602,8 @@ void Item_equal::add(Item *c)
Item_func_eq *func= new Item_func_eq(c, const_item);
func->set_cmp_func();
func->quick_fix_field();
cond_false = !(func->val_int());
if ((cond_false= !func->val_int()))
const_item_cache= 1;
}
void Item_equal::add(Item_field *f)
@ -3734,13 +3735,45 @@ void Item_equal::sort(Item_field_cmpfunc cmp, void *arg)
} while (swap);
}
/*
Check appearance of new constant items in the multiple equality object
SYNOPSIS
check()
DESCRIPTION
The function checks appearance of new constant items among
the members of multiple equalities. Each new constant item is
compared with the designated constant item if there is any in the
multiple equality. If there is none the first new constant item
becomes designated.
RETURN VALUES
none
*/
void Item_equal::check_const()
{
List_iterator<Item_field> it(fields);
Item *item;
while ((item= it++))
{
if (item->const_item())
{
it.remove();
add(item);
}
}
}
bool Item_equal::fix_fields(THD *thd, Item **ref)
{
List_iterator_fast<Item_field> li(fields);
Item *item;
not_null_tables_cache= used_tables_cache= 0;
const_item_cache= 0;
while ((item=li++))
while ((item= li++))
{
table_map tmp_table_map;
used_tables_cache|= item->used_tables();

1
sql/item_cmpfunc.h
View file

@ -1196,6 +1196,7 @@ public:
bool contains(Field *field);
Item_field* get_first() { return fields.head(); }
void merge(Item_equal *item);
void check_const();
enum Functype functype() const { return MULT_EQUAL_FUNC; }
longlong val_int();
const char *func_name() const { return "multiple equal"; }

7
sql/item_sum.cc
View file

@ -2495,6 +2495,7 @@ void Item_sum_count_distinct::make_unique()
{
table=0;
original= 0;
force_copy_fields= 1;
tree= 0;
tmp_table_param= 0;
always_null= FALSE;
@ -2538,6 +2539,7 @@ bool Item_sum_count_distinct::setup(THD *thd)
if (always_null)
return FALSE;
count_field_types(tmp_table_param,list,0);
tmp_table_param->force_copy_fields= force_copy_fields;
DBUG_ASSERT(table == 0);
if (!(table= create_tmp_table(thd, tmp_table_param, list, (ORDER*) 0, 1,
0,
@ -3052,7 +3054,7 @@ Item_func_group_concat(Name_resolution_context *context_arg,
count_cut_values(0),
distinct(distinct_arg),
warning_for_row(FALSE),
original(0)
force_copy_fields(0), original(0)
{
Item *item_select;
Item **arg_ptr;
@ -3109,6 +3111,7 @@ Item_func_group_concat::Item_func_group_concat(THD *thd,
distinct(item->distinct),
warning_for_row(item->warning_for_row),
always_null(item->always_null),
force_copy_fields(item->force_copy_fields),
original(item)
{
quick_group= item->quick_group;
@ -3310,6 +3313,7 @@ bool Item_func_group_concat::setup(THD *thd)
DBUG_RETURN(TRUE);
count_field_types(tmp_table_param,all_fields,0);
tmp_table_param->force_copy_fields= force_copy_fields;
DBUG_ASSERT(table == 0);
/*
We have to create a temporary table to get descriptions of fields
@ -3372,6 +3376,7 @@ void Item_func_group_concat::make_unique()
tmp_table_param= 0;
table=0;
original= 0;
force_copy_fields= 1;
tree= 0;
}

7
sql/item_sum.h
View file

@ -501,6 +501,7 @@ class Item_sum_count_distinct :public Item_sum_int
TABLE *table;
uint32 *field_lengths;
TMP_TABLE_PARAM *tmp_table_param;
bool force_copy_fields;
/*
If there are no blobs, we can use a tree, which
is faster than heap table. In that case, we still use the table
@ -524,13 +525,14 @@ class Item_sum_count_distinct :public Item_sum_int
public:
Item_sum_count_distinct(List<Item> &list)
:Item_sum_int(list), table(0), field_lengths(0), tmp_table_param(0),
tree(0), original(0), always_null(FALSE)
force_copy_fields(0), tree(0), original(0), always_null(FALSE)
{ quick_group= 0; }
Item_sum_count_distinct(THD *thd, Item_sum_count_distinct *item)
:Item_sum_int(thd, item), table(item->table),
field_lengths(item->field_lengths),
tmp_table_param(item->tmp_table_param),
tree(item->tree), original(item), tree_key_length(item->tree_key_length),
force_copy_fields(0), tree(item->tree), original(item),
tree_key_length(item->tree_key_length),
always_null(item->always_null)
{}
~Item_sum_count_distinct();
@ -1086,6 +1088,7 @@ class Item_func_group_concat : public Item_sum
bool distinct;
bool warning_for_row;
bool always_null;
bool force_copy_fields;
bool no_appended;
/*
Following is 0 normal object and pointer to original one for copy

1
sql/mysql_priv.h
View file

@ -756,6 +756,7 @@ Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
Item ***copy_func, Field **from_field,
bool group, bool modify_item,
bool table_cant_handle_bit_fields,
bool make_copy_field,
uint convert_blob_length);
void sp_prepare_create_field(THD *thd, create_field *sql_field);
int prepare_create_field(create_field *sql_field,

3
sql/sql_class.h
View file

@ -1656,11 +1656,12 @@ public:
aggregate functions as normal functions.
*/
bool precomputed_group_by;
bool force_copy_fields;
TMP_TABLE_PARAM()
:copy_field(0), group_parts(0),
group_length(0), group_null_parts(0), convert_blob_length(0),
schema_table(0), precomputed_group_by(0)
schema_table(0), precomputed_group_by(0), force_copy_fields(0)
{}
~TMP_TABLE_PARAM()
{

95
sql/sql_select.cc
View file

@ -136,7 +136,7 @@ static enum_nested_loop_state
end_write_group(JOIN *join, JOIN_TAB *join_tab, bool end_of_records);
static int test_if_group_changed(List<Cached_item> &list);
static int join_read_const_table(JOIN_TAB *tab, POSITION *pos);
static int join_read_const_table(JOIN *join, JOIN_TAB *tab, POSITION *pos);
static int join_read_system(JOIN_TAB *tab);
static int join_read_const(JOIN_TAB *tab);
static int join_read_key(JOIN_TAB *tab);
@ -2153,7 +2153,7 @@ make_join_statistics(JOIN *join, TABLE_LIST *tables, COND *conds,
s= p_pos->table;
s->type=JT_SYSTEM;
join->const_table_map|=s->table->map;
if ((tmp=join_read_const_table(s, p_pos)))
if ((tmp=join_read_const_table(join, s, p_pos)))
{
if (tmp > 0)
DBUG_RETURN(1); // Fatal error
@ -2190,7 +2190,8 @@ make_join_statistics(JOIN *join, TABLE_LIST *tables, COND *conds,
s->type=JT_SYSTEM;
join->const_table_map|=table->map;
set_position(join,const_count++,s,(KEYUSE*) 0);
if ((tmp= join_read_const_table(s,join->positions+const_count-1)))
if ((tmp= join_read_const_table(join, s,
join->positions+const_count-1)))
{
if (tmp > 0)
DBUG_RETURN(1); // Fatal error
@ -2242,7 +2243,7 @@ make_join_statistics(JOIN *join, TABLE_LIST *tables, COND *conds,
if (create_ref_for_key(join, s, start_keyuse,
found_const_table_map))
DBUG_RETURN(1);
if ((tmp=join_read_const_table(s,
if ((tmp=join_read_const_table(join, s,
join->positions+const_count-1)))
{
if (tmp > 0)
@ -6844,8 +6845,8 @@ static COND *build_equal_items_for_cond(COND *cond,
return item_equal;
}
/*
For each field reference in cond, not from equalitym predicates,
set a pointer to the multiple equality if belongs to (if there is any)
For each field reference in cond, not from equal item predicates,
set a pointer to the multiple equality it belongs to (if there is any)
*/
cond= cond->transform(&Item::equal_fields_propagator,
(byte *) inherited);
@ -7030,7 +7031,7 @@ static int compare_fields_by_table_order(Item_field *field1,
NOTES
Before generating an equality function checks that it has not
been generated for multiple equalies of the upper levels.
been generated for multiple equalities of the upper levels.
E.g. for the following where condition
WHERE a=5 AND ((a=b AND b=c) OR c>4)
the upper level AND condition will contain =(5,a),
@ -7203,7 +7204,7 @@ static COND* substitute_for_best_equal_field(COND *cond,
{
cond= eliminate_item_equal(cond, cond_equal->upper_levels, item_equal);
// This occurs when eliminate_item_equal() founds that cond is
// always false and substitues it with Item_int 0.
// always false and substitutes it with Item_int 0.
// Due to this, value of item_equal will be 0, so just return it.
if (cond->type() != Item::COND_ITEM)
break;
@ -7225,6 +7226,45 @@ static COND* substitute_for_best_equal_field(COND *cond,
}
/*
Check appearance of new constant items in multiple equalities
of a condition after reading a constant table
SYNOPSIS
check_const_equal_item()
cond condition whose multiple equalities are to be checked
table constant table that has been read
DESCRIPTION
The function retrieves the cond condition and for each encountered
multiple equality checks whether new constants have appeared after
reading the constant (single row) table tab. If so it adjusts
the multiple equality appropriately.
*/
static void check_const_equal_items(COND *cond,
JOIN_TAB *tab)
{
if (!(cond->used_tables() & tab->table->map))
return;
if (cond->type() == Item::COND_ITEM)
{
List<Item> *cond_list= ((Item_cond*) cond)->argument_list();
List_iterator_fast<Item> li(*cond_list);
Item *item;
while ((item= li++))
check_const_equal_items(item, tab);
}
else if (cond->type() == Item::FUNC_ITEM &&
((Item_cond*) cond)->functype() == Item_func::MULT_EQUAL_FUNC)
{
Item_equal *item_equal= (Item_equal *) cond;
item_equal->check_const();
}
}
/*
change field = field to field = const for each found field = const in the
and_level
@ -8355,6 +8395,7 @@ Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
Item ***copy_func, Field **from_field,
bool group, bool modify_item,
bool table_cant_handle_bit_fields,
bool make_copy_field,
uint convert_blob_length)
{
Item::Type orig_type= type;
@ -8436,7 +8477,13 @@ Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
case Item::REF_ITEM:
case Item::NULL_ITEM:
case Item::VARBIN_ITEM:
return create_tmp_field_from_item(thd, item, table, copy_func, modify_item,
if (make_copy_field)
{
DBUG_ASSERT(((Item_result_field*)item)->result_field);
*from_field= ((Item_result_field*)item)->result_field;
}
return create_tmp_field_from_item(thd, item, table, (make_copy_field ? 0 :
copy_func), modify_item,
convert_blob_length);
case Item::TYPE_HOLDER:
return ((Item_type_holder *)item)->make_field_by_type(table);
@ -8509,6 +8556,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
Item **copy_func;
MI_COLUMNDEF *recinfo;
uint total_uneven_bit_length= 0;
bool force_copy_fields= param->force_copy_fields;
DBUG_ENTER("create_tmp_table");
DBUG_PRINT("enter",("distinct: %d save_sum_fields: %d rows_limit: %lu group: %d",
(int) distinct, (int) save_sum_fields,
@ -8668,7 +8716,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
Field *new_field=
create_tmp_field(thd, table, arg, arg->type(), &copy_func,
tmp_from_field, group != 0,not_all_columns,
distinct,
distinct, 0,
param->convert_blob_length);
if (!new_field)
goto err; // Should be OOM
@ -8725,8 +8773,9 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
create_tmp_field_for_schema(thd, item, table) :
create_tmp_field(thd, table, item, type, &copy_func,
tmp_from_field, group != 0,
not_all_columns || group != 0,
item->marker == 4,
!force_copy_fields &&
(not_all_columns || group !=0),
item->marker == 4, force_copy_fields,
param->convert_blob_length);
if (!new_field)
@ -10163,7 +10212,7 @@ int safe_index_read(JOIN_TAB *tab)
static int
join_read_const_table(JOIN_TAB *tab, POSITION *pos)
join_read_const_table(JOIN *join, JOIN_TAB *tab, POSITION *pos)
{
int error;
DBUG_ENTER("join_read_const_table");
@ -10215,6 +10264,26 @@ join_read_const_table(JOIN_TAB *tab, POSITION *pos)
}
if (!table->null_row)
table->maybe_null=0;
/* Check appearance of new constant items in Item_equal objects */
if (join->conds)
check_const_equal_items(join->conds, tab);
TABLE_LIST *tbl;
for (tbl= join->select_lex->leaf_tables; tbl; tbl= tbl->next_leaf)
{
TABLE_LIST *embedded;
TABLE_LIST *embedding= tbl;
do
{
embedded= embedding;
if (embedded->on_expr)
check_const_equal_items(embedded->on_expr, tab);
embedding= embedded->embedding;
}
while (embedding &&
embedding->nested_join->join_list.head() == embedded);
}
DBUG_RETURN(0);
}

2
sql/sql_table.cc
View file

@ -2464,7 +2464,7 @@ TABLE *create_table_from_items(THD *thd, HA_CREATE_INFO *create_info,
field=item->tmp_table_field(&tmp_table);
else
field=create_tmp_field(thd, &tmp_table, item, item->type(),
(Item ***) 0, &tmp_field, 0, 0, 0, 0);
(Item ***) 0, &tmp_field, 0, 0, 0, 0, 0);
if (!field ||
!(cr_field=new create_field(field,(item->type() == Item::FIELD_ITEM ?
((Item_field *)item)->field :

11
storage/myisam/mi_search.c
View file

@ -1471,7 +1471,7 @@ _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,uchar *next_key,
if (!*key++)
{
s_temp->key=key;
s_temp->ref_length=s_temp->key_length=0;
s_temp->key_length= 0;
s_temp->totlength=key_length-1+diff_flag;
s_temp->next_key_pos=0; /* No next key */
return (s_temp->totlength);
@ -1626,12 +1626,12 @@ _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,uchar *next_key,
s_temp->prev_length= org_key_length;
s_temp->n_ref_length=s_temp->n_length= org_key_length;
length+= org_key_length;
/* +get_pack_length(org_key_length); */
}
return (int) length;
}
ref_length=n_length;
/* Get information about not packed key suffix */
get_key_pack_length(n_length,next_length_pack,next_key);
/* Test if new keys has fewer characters that match the previous key */
@ -1640,7 +1640,6 @@ _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,uchar *next_key,
s_temp->part_of_prev_key= 0;
s_temp->prev_length= ref_length;
s_temp->n_ref_length= s_temp->n_length= n_length+ref_length;
/* s_temp->prev_key+= get_pack_length(org_key_length); */
return (int) length+ref_length-next_length_pack;
}
if (ref_length+pack_marker > new_ref_length)
@ -1651,9 +1650,7 @@ _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,uchar *next_key,
s_temp->prev_length= ref_length - new_pack_length;
s_temp->n_ref_length=s_temp->n_length=n_length + s_temp->prev_length;
s_temp->prev_key+= new_pack_length;
/* +get_pack_length(org_key_length); */
length= length-get_pack_length(ref_length)+
get_pack_length(new_pack_length);
length-= (next_length_pack - get_pack_length(s_temp->n_length));
return (int) length + s_temp->prev_length;
}
}
@ -1662,7 +1659,7 @@ _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,uchar *next_key,
/* Next key wasn't a prefix of previous key */
ref_length=0;
next_length_pack=0;
}
}
DBUG_PRINT("test",("length: %d next_key: %lx", length,
(long) next_key));