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Merge bk-internal:/home/bk/mysql-5.1-build

Browse source 
into  production.mysql.com:/usersnfs/mjorgensen/bktrees/mysql-5.1-build
This commit is contained in:
unknown 2007-03-09 23:20:50 +01:00
commit 509d507dc0
36 changed files with 710 additions and 115 deletions
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4
BUILD/check-cpu
View file

@ -114,6 +114,10 @@ check_cpu () {
*i386*i486*)
cpu_arg="pentium-m";
;;
#Core 2 Duo
*Intel*Core\(TM\)2*)
cpu_arg="nocona";
;;
# Intel ia64
*Itanium*)

30
mysql-test/r/explain.result
View file

@ -57,3 +57,33 @@ select 3 into @v1;
explain select 3 into @v1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
create table t1(f1 int, f2 int);
insert into t1 values (1,1);
create view v1 as select * from t1 where f1=1;
explain extended select * from v1 where f2=1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 1
explain extended select * from t1 where 0;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 0
explain extended select * from t1 where 1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 1
explain extended select * from t1 having 0;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible HAVING
Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` having 0
explain extended select * from t1 having 1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` having 1
drop view v1;
drop table t1;

78
mysql-test/r/func_in.result
View file

@ -399,6 +399,84 @@ WHERE t3.a=t1.a AND t3.a=t2.a;
3
3
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1(a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (0xFFFFFFFFFFFFFFFF);
SELECT * FROM t1 WHERE a=-1 OR a=-2 ;
a
SELECT * FROM t1 WHERE a IN (-1, -2);
a
CREATE TABLE t2 (a BIGINT UNSIGNED);
insert into t2 values(13491727406643098568),
(0x7fffffefffffffff),
(0x7ffffffeffffffff),
(0x7fffffffefffffff),
(0x7ffffffffeffffff),
(0x7fffffffffefffff),
(0x7ffffffffffeffff),
(0x7fffffffffffefff),
(0x7ffffffffffffeff),
(0x7fffffffffffffef),
(0x7ffffffffffffffe),
(0x7fffffffffffffff),
(0x8000000000000000),
(0x8000000000000001),
(0x8000000000000002),
(0x8000000000000300),
(0x8000000000000400),
(0x8000000000000401),
(0x8000000000004001),
(0x8000000000040001),
(0x8000000000400001),
(0x8000000004000001),
(0x8000000040000001),
(0x8000000400000001),
(0x8000004000000001),
(0x8000040000000001);
SELECT HEX(a) FROM t2 WHERE a IN (0xBB3C3E98175D33C8, 42);
HEX(a)
BB3C3E98175D33C8
SELECT HEX(a) FROM t2 WHERE a IN
(0xBB3C3E98175D33C8,
0x7fffffffffffffff,
0x8000000000000000,
0x8000000000000400,
0x8000000000000401,
42);
HEX(a)
BB3C3E98175D33C8
7FFFFFFFFFFFFEFF
7FFFFFFFFFFFFFEF
7FFFFFFFFFFFFFFE
7FFFFFFFFFFFFFFF
8000000000000000
8000000000000001
8000000000000002
8000000000000300
8000000000000400
8000000000000401
SELECT HEX(a) FROM t2 WHERE a IN (0x7fffffffffffffff,0x8000000000000001);
HEX(a)
7FFFFFFFFFFFFFFF
8000000000000001
SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff);
HEX(a)
7FFFFFFFFFFFFFFE
7FFFFFFFFFFFFFFF
SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff,'abc');
HEX(a)
7FFFFFFFFFFFFFFE
7FFFFFFFFFFFFFFF
CREATE TABLE t3 (a BIGINT UNSIGNED);
INSERT INTO t3 VALUES (9223372036854775551);
SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
HEX(a)
CREATE TABLE t4 (a DATE);
INSERT INTO t4 VALUES ('1972-02-06'), ('1972-07-29');
SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
a
Warnings:
Warning 1292 Incorrect date value: '19772-07-29' for column 'a' at row 1
DROP TABLE t1,t2,t3,t4;
End of 5.0 tests
create table t1(f1 char(1));
insert into t1 values ('a'),('b'),('1');

6
mysql-test/r/func_str.result
View file

@ -2287,4 +2287,10 @@ A B tire
# # 1
## ## 2
DROP TABLE t1;
SELECT UNHEX('G');
UNHEX('G')
NULL
SELECT UNHEX('G') IS NULL;
UNHEX('G') IS NULL
1
End of 5.0 tests

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

@ -79,7 +79,7 @@ explain extended select * from t1 where 1 xor 1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1`
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where 0
select - a from t1;
- a
-1

8
mysql-test/r/order_by.result
View file

@ -950,6 +950,14 @@ NULL
2
3
DROP TABLE t1,t2,t3,t4;
create table t1 (a int, b int, c int);
insert into t1 values (1,2,3), (9,8,3), (19,4,3), (1,4,9);
select a,(sum(b)/sum(c)) as ratio from t1 group by a order by sum(b)/sum(c) asc;
a ratio
1 0.5000
19 1.3333
9 2.6667
drop table t1;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), UNIQUE KEY b (b));
INSERT INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 (a INT, b INT, KEY a (a,b));

13
mysql-test/r/sp.result
View file

@ -5857,4 +5857,17 @@ func_8407_b()
1500
drop function func_8407_a|
drop function func_8407_b|
DROP FUNCTION IF EXISTS bug25373|
CREATE FUNCTION bug25373(p1 INTEGER) RETURNS INTEGER
LANGUAGE SQL DETERMINISTIC
RETURN p1;|
CREATE TABLE t3 (f1 INT, f2 FLOAT)|
INSERT INTO t3 VALUES (1, 3.4), (1, 2), (1, 0.9), (2, 8), (2, 7)|
SELECT SUM(f2), bug25373(f1) FROM t3 GROUP BY bug25373(f1) WITH ROLLUP|
SUM(f2) bug25373(f1)
6.3000000715256 1
15 2
21.300000071526 NULL
DROP FUNCTION bug25373|
DROP TABLE t3|
drop table t1,t2;

16
mysql-test/r/subselect.result
View file

@ -421,7 +421,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1`
Note 1003 select 1 AS `1` from `test`.`t1` where 1
drop table t1;
CREATE TABLE `t1` (
`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@ -1180,7 +1180,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a`)) AS `0 IN (SELECT 1 FROM t1 a)`
Note 1003 select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a` where 0)) AS `0 IN (SELECT 1 FROM t1 a)`
INSERT INTO t1 (pseudo) VALUES ('test1');
SELECT 0 IN (SELECT 1 FROM t1 a);
0 IN (SELECT 1 FROM t1 a)
@ -1190,7 +1190,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a`)) AS `0 IN (SELECT 1 FROM t1 a)`
Note 1003 select <in_optimizer>(0,<exists>(select 1 AS `Not_used` from `test`.`t1` `a` where 0)) AS `0 IN (SELECT 1 FROM t1 a)`
drop table t1;
CREATE TABLE `t1` (
`i` int(11) NOT NULL default '0',
@ -1532,7 +1532,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3`
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
select * from t3 where NULL >= any (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
@ -1540,7 +1540,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3`
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
@ -1548,7 +1548,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3`
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
select * from t3 where NULL >= some (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
@ -1556,7 +1556,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3`
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
@ -1618,7 +1618,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 system NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select `test`.`t1`.`s1` AS `s1` from `test`.`t1`
Note 1003 select `test`.`t1`.`s1` AS `s1` from `test`.`t1` where 1
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');

11
mysql-test/r/union.result
View file

@ -1426,4 +1426,15 @@ select _utf8'12' union select _latin1'12345';
12
12
12345
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (3),(1),(2),(4),(1);
SELECT a FROM (SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a) AS test;
a
1
2
3
4
SELECT a FROM (SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY c) AS test;
ERROR 42S22: Unknown column 'c' in 'order clause'
DROP TABLE t1;
End of 5.0 tests

4
mysql-test/r/update.result
View file

@ -377,6 +377,10 @@ create table t1(f1 int, `*f2` int);
insert into t1 values (1,1);
update t1 set `*f2`=1;
drop table t1;
create table t1(f1 int);
update t1 set f2=1 order by f2;
ERROR 42S22: Unknown column 'f2' in 'order clause'
drop table t1;
CREATE TABLE t1 (
request_id int unsigned NOT NULL auto_increment,
user_id varchar(12) default NULL,

37
mysql-test/r/view.result
View file

@ -3263,6 +3263,43 @@ a IS TRUE old_istrue a IS NOT TRUE old_isnottrue a IS FALSE old_isfalse a IS NOT
drop view view_24532_a;
drop view view_24532_b;
drop table table_24532;
CREATE TABLE t1 (
lid int NOT NULL PRIMARY KEY,
name char(10) NOT NULL
);
INSERT INTO t1 (lid, name) VALUES
(1, 'YES'), (2, 'NO');
CREATE TABLE t2 (
id int NOT NULL PRIMARY KEY,
gid int NOT NULL,
lid int NOT NULL,
dt date
);
INSERT INTO t2 (id, gid, lid, dt) VALUES
(1, 1, 1, '2007-01-01'),(2, 1, 2, '2007-01-02'),
(3, 2, 2, '2007-02-01'),(4, 2, 1, '2007-02-02');
SELECT DISTINCT t2.gid AS lgid,
(SELECT t1.name FROM t1, t2
WHERE t1.lid = t2.lid AND t2.gid = lgid
ORDER BY t2.dt DESC LIMIT 1
) as clid
FROM t2;
lgid clid
1 NO
2 YES
CREATE VIEW v1 AS
SELECT DISTINCT t2.gid AS lgid,
(SELECT t1.name FROM t1, t2
WHERE t1.lid = t2.lid AND t2.gid = lgid
ORDER BY t2.dt DESC LIMIT 1
) as clid
FROM t2;
SELECT * FROM v1;
lgid clid
1 NO
2 YES
DROP VIEW v1;
DROP table t1,t2;
End of 5.0 tests.
DROP DATABASE IF EXISTS `d-1`;
CREATE DATABASE `d-1`;

15
mysql-test/t/explain.test
View file

@ -51,4 +51,19 @@ set names latin1;
select 3 into @v1;
explain select 3 into @v1;
#
# Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were
# optimized away.
#
create table t1(f1 int, f2 int);
insert into t1 values (1,1);
create view v1 as select * from t1 where f1=1;
explain extended select * from v1 where f2=1;
explain extended select * from t1 where 0;
explain extended select * from t1 where 1;
explain extended select * from t1 having 0;
explain extended select * from t1 having 1;
drop view v1;
drop table t1;
# End of 5.0 tests.

62
mysql-test/t/func_in.test
View file

@ -299,6 +299,68 @@ SELECT STRAIGHT_JOIN
DROP TABLE t1,t2,t3,t4;
#
# BUG#19342: IN works incorrectly for BIGINT UNSIGNED values
#
CREATE TABLE t1(a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (0xFFFFFFFFFFFFFFFF);
SELECT * FROM t1 WHERE a=-1 OR a=-2 ;
SELECT * FROM t1 WHERE a IN (-1, -2);
CREATE TABLE t2 (a BIGINT UNSIGNED);
insert into t2 values(13491727406643098568),
(0x7fffffefffffffff),
(0x7ffffffeffffffff),
(0x7fffffffefffffff),
(0x7ffffffffeffffff),
(0x7fffffffffefffff),
(0x7ffffffffffeffff),
(0x7fffffffffffefff),
(0x7ffffffffffffeff),
(0x7fffffffffffffef),
(0x7ffffffffffffffe),
(0x7fffffffffffffff),
(0x8000000000000000),
(0x8000000000000001),
(0x8000000000000002),
(0x8000000000000300),
(0x8000000000000400),
(0x8000000000000401),
(0x8000000000004001),
(0x8000000000040001),
(0x8000000000400001),
(0x8000000004000001),
(0x8000000040000001),
(0x8000000400000001),
(0x8000004000000001),
(0x8000040000000001);
SELECT HEX(a) FROM t2 WHERE a IN (0xBB3C3E98175D33C8, 42);
SELECT HEX(a) FROM t2 WHERE a IN
(0xBB3C3E98175D33C8,
0x7fffffffffffffff,
0x8000000000000000,
0x8000000000000400,
0x8000000000000401,
42);
SELECT HEX(a) FROM t2 WHERE a IN (0x7fffffffffffffff,0x8000000000000001);
SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff);
SELECT HEX(a) FROM t2 WHERE a IN (0x7ffffffffffffffe,0x7fffffffffffffff,'abc');
CREATE TABLE t3 (a BIGINT UNSIGNED);
INSERT INTO t3 VALUES (9223372036854775551);
SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
CREATE TABLE t4 (a DATE);
INSERT INTO t4 VALUES ('1972-02-06'), ('1972-07-29');
SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
DROP TABLE t1,t2,t3,t4;
--echo End of 5.0 tests

7
mysql-test/t/func_str.test
View file

@ -1115,7 +1115,6 @@ select repeat('a', cast(2 as unsigned int));
select rpad('abc', cast(5 as unsigned integer), 'x');
select lpad('abc', cast(5 as unsigned integer), 'x');
#
# Bug #25197 :repeat function returns null when using table field directly as count
#
@ -1137,4 +1136,10 @@ SELECT REPEAT( '#', tire ) AS A,
DROP TABLE t1;
#
# Bug #26537: UNHEX() IS NULL comparison fails
#
SELECT UNHEX('G');
SELECT UNHEX('G') IS NULL;
--echo End of 5.0 tests

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

@ -670,6 +670,14 @@ ON (t1.a=t2.a AND t1.b=t3.b) order by t2.b;
DROP TABLE t1,t2,t3,t4;
#
# Bug#25376: Incomplete setup of ORDER BY clause results in a wrong result.
#
create table t1 (a int, b int, c int);
insert into t1 values (1,2,3), (9,8,3), (19,4,3), (1,4,9);
select a,(sum(b)/sum(c)) as ratio from t1 group by a order by sum(b)/sum(c) asc;
drop table t1;
#
# BUG#16590: Optimized does not do right "const" table pre-read
#

15
mysql-test/t/sp.test
View file

@ -6827,6 +6827,21 @@ select func_8407_b()|
drop function func_8407_a|
drop function func_8407_b|
#
# Bug#25373: Stored functions wasn't compared correctly which leads to a wrong
# result.
#
--disable_warnings
DROP FUNCTION IF EXISTS bug25373|
--disable_warnings
CREATE FUNCTION bug25373(p1 INTEGER) RETURNS INTEGER
LANGUAGE SQL DETERMINISTIC
RETURN p1;|
CREATE TABLE t3 (f1 INT, f2 FLOAT)|
INSERT INTO t3 VALUES (1, 3.4), (1, 2), (1, 0.9), (2, 8), (2, 7)|
SELECT SUM(f2), bug25373(f1) FROM t3 GROUP BY bug25373(f1) WITH ROLLUP|
DROP FUNCTION bug25373|
DROP TABLE t3|
#
# NOTE: The delimiter is `|`, and not `;`. It is changed to `;`
# at the end of the file!

13
mysql-test/t/union.test
View file

@ -900,4 +900,17 @@ drop table t1, t2;
#
select _utf8'12' union select _latin1'12345';
#
# Bug #26661: UNION with ORDER BY undefined column in FROM list
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (3),(1),(2),(4),(1);
SELECT a FROM (SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a) AS test;
--error 1054
SELECT a FROM (SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY c) AS test;
DROP TABLE t1;
--echo End of 5.0 tests

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

@ -306,6 +306,14 @@ create table t1(f1 int, `*f2` int);
insert into t1 values (1,1);
update t1 set `*f2`=1;
drop table t1;
#
# Bug#25126: Wrongly resolved field leads to a crash
#
create table t1(f1 int);
--error 1054
update t1 set f2=1 order by f2;
drop table t1;
# End of 4.1 tests
#

39
mysql-test/t/view.test
View file

@ -3154,6 +3154,45 @@ drop view view_24532_a;
drop view view_24532_b;
drop table table_24532;
#
# Bug#26560: view using subquery with a reference to an outer alias
#
CREATE TABLE t1 (
lid int NOT NULL PRIMARY KEY,
name char(10) NOT NULL
);
INSERT INTO t1 (lid, name) VALUES
(1, 'YES'), (2, 'NO');
CREATE TABLE t2 (
id int NOT NULL PRIMARY KEY,
gid int NOT NULL,
lid int NOT NULL,
dt date
);
INSERT INTO t2 (id, gid, lid, dt) VALUES
(1, 1, 1, '2007-01-01'),(2, 1, 2, '2007-01-02'),
(3, 2, 2, '2007-02-01'),(4, 2, 1, '2007-02-02');
SELECT DISTINCT t2.gid AS lgid,
(SELECT t1.name FROM t1, t2
WHERE t1.lid = t2.lid AND t2.gid = lgid
ORDER BY t2.dt DESC LIMIT 1
) as clid
FROM t2;
CREATE VIEW v1 AS
SELECT DISTINCT t2.gid AS lgid,
(SELECT t1.name FROM t1, t2
WHERE t1.lid = t2.lid AND t2.gid = lgid
ORDER BY t2.dt DESC LIMIT 1
) as clid
FROM t2;
SELECT * FROM v1;
DROP VIEW v1;
DROP table t1,t2;
--echo End of 5.0 tests.

33
sql/item.cc
View file

@ -3354,7 +3354,7 @@ resolve_ref_in_select_and_group(THD *thd, Item_ident *ref, SELECT_LEX *select)
ORDER *group_list= (ORDER*) select->group_list.first;
bool ambiguous_fields= FALSE;
uint counter;
bool not_used;
enum_resolution_type resolution;
/*
Search for a column or derived column named as 'ref' in the SELECT
@ -3362,8 +3362,10 @@ resolve_ref_in_select_and_group(THD *thd, Item_ident *ref, SELECT_LEX *select)
*/
if (!(select_ref= find_item_in_list(ref, *(select->get_item_list()),
&counter, REPORT_EXCEPT_NOT_FOUND,
&not_used)))
&resolution)))
return NULL; /* Some error occurred. */
if (resolution == RESOLVED_AGAINST_ALIAS)
ref->alias_name_used= TRUE;
/* If this is a non-aggregated field inside HAVING, search in GROUP BY. */
if (select->having_fix_field && !ref->with_sum_func && group_list)
@ -3473,7 +3475,12 @@ Item_field::fix_outer_field(THD *thd, Field **from_field, Item **reference)
*/
Name_resolution_context *last_checked_context= context;
Item **ref= (Item **) not_found_item;
Name_resolution_context *outer_context= context->outer_context;
SELECT_LEX *current_sel= (SELECT_LEX *) thd->lex->current_select;
Name_resolution_context *outer_context= 0;
/* Currently derived tables cannot be correlated */
if (current_sel->master_unit()->first_select()->linkage !=
DERIVED_TABLE_TYPE)
outer_context= context->outer_context;
for (;
outer_context;
outer_context= outer_context->outer_context)
@ -3664,9 +3671,9 @@ Item_field::fix_outer_field(THD *thd, Field **from_field, Item **reference)
*ref= NULL; // Don't call set_properties()
rf= (place == IN_HAVING ?
new Item_ref(context, ref, (char*) table_name,
(char*) field_name) :
(char*) field_name, alias_name_used) :
new Item_direct_ref(context, ref, (char*) table_name,
(char*) field_name));
(char*) field_name, alias_name_used));
*ref= save;
if (!rf)
return -1;
@ -3784,12 +3791,14 @@ bool Item_field::fix_fields(THD *thd, Item **reference)
if (thd->lex->current_select->is_item_list_lookup)
{
uint counter;
bool not_used;
enum_resolution_type resolution;
Item** res= find_item_in_list(this, thd->lex->current_select->item_list,
&counter, REPORT_EXCEPT_NOT_FOUND,
&not_used);
&resolution);
if (!res)
return 1;
if (resolution == RESOLVED_AGAINST_ALIAS)
alias_name_used= TRUE;
if (res != (Item **)not_found_item)
{
if ((*res)->type() == Item::FIELD_ITEM)
@ -4995,10 +5004,12 @@ Item *Item_field::update_value_transformer(byte *select_arg)
Item_ref::Item_ref(Name_resolution_context *context_arg,
Item **item, const char *table_name_arg,
const char *field_name_arg)
const char *field_name_arg,
bool alias_name_used_arg)
:Item_ident(context_arg, NullS, table_name_arg, field_name_arg),
result_field(0), ref(item)
{
alias_name_used= alias_name_used_arg;
/*
This constructor used to create some internals references over fixed items
*/
@ -5281,11 +5292,13 @@ void Item_ref::set_properties()
*/
with_sum_func= (*ref)->with_sum_func;
unsigned_flag= (*ref)->unsigned_flag;
fixed= 1;
if (alias_name_used)
return;
if ((*ref)->type() == FIELD_ITEM)
alias_name_used= ((Item_ident *) (*ref))->alias_name_used;
else
alias_name_used= TRUE; // it is not field, so it is was resolved by alias
fixed= 1;
}
@ -5303,7 +5316,7 @@ void Item_ref::print(String *str)
if (ref)
{
if ((*ref)->type() != Item::CACHE_ITEM && ref_type() != VIEW_REF &&
ref_type() != OUTER_REF && name && alias_name_used)
!table_name && name && alias_name_used)
{
THD *thd= current_thd;
append_identifier(thd, str, name, (uint) strlen(name));

15
sql/item.h
View file

@ -1876,7 +1876,10 @@ public:
Item_hex_string(const char *str,uint str_length);
enum Type type() const { return VARBIN_ITEM; }
double val_real()
{ DBUG_ASSERT(fixed == 1); return (double) Item_hex_string::val_int(); }
{
DBUG_ASSERT(fixed == 1);
return (double) (ulonglong) Item_hex_string::val_int();
}
longlong val_int();
bool basic_const_item() const { return 1; }
String *val_str(String*) { DBUG_ASSERT(fixed == 1); return &str_value; }
@ -1951,7 +1954,8 @@ public:
with Bar, and if we have a more broader set of problems like this.
*/
Item_ref(Name_resolution_context *context_arg, Item **item,
const char *table_name_arg, const char *field_name_arg);
const char *table_name_arg, const char *field_name_arg,
bool alias_name_used_arg= FALSE);
/* Constructor need to process subselect with temporary tables (see Item) */
Item_ref(THD *thd, Item_ref *item)
@ -2026,8 +2030,11 @@ class Item_direct_ref :public Item_ref
public:
Item_direct_ref(Name_resolution_context *context_arg, Item **item,
const char *table_name_arg,
const char *field_name_arg)
:Item_ref(context_arg, item, table_name_arg, field_name_arg) {}
const char *field_name_arg,
bool alias_name_used_arg= FALSE)
:Item_ref(context_arg, item, table_name_arg,
field_name_arg, alias_name_used_arg)
{}
/* Constructor need to process subselect with temporary tables (see Item) */
Item_direct_ref(THD *thd, Item_direct_ref *item) : Item_ref(thd, item) {}

130
sql/item_cmpfunc.cc
View file

@ -2190,9 +2190,100 @@ void Item_func_coalesce::fix_length_and_dec()
Classes and function for the IN operator
****************************************************************************/
static int cmp_longlong(void *cmp_arg, longlong *a,longlong *b)
/*
Determine which of the signed longlong arguments is bigger
SYNOPSIS
cmp_longs()
a_val left argument
b_val right argument
DESCRIPTION
This function will compare two signed longlong arguments
and will return -1, 0, or 1 if left argument is smaller than,
equal to or greater than the right argument.
RETURN VALUE
-1 left argument is smaller than the right argument.
0 left argument is equal to the right argument.
1 left argument is greater than the right argument.
*/
static inline int cmp_longs (longlong a_val, longlong b_val)
{
return *a < *b ? -1 : *a == *b ? 0 : 1;
return a_val < b_val ? -1 : a_val == b_val ? 0 : 1;
}
/*
Determine which of the unsigned longlong arguments is bigger
SYNOPSIS
cmp_ulongs()
a_val left argument
b_val right argument
DESCRIPTION
This function will compare two unsigned longlong arguments
and will return -1, 0, or 1 if left argument is smaller than,
equal to or greater than the right argument.
RETURN VALUE
-1 left argument is smaller than the right argument.
0 left argument is equal to the right argument.
1 left argument is greater than the right argument.
*/
static inline int cmp_ulongs (ulonglong a_val, ulonglong b_val)
{
return a_val < b_val ? -1 : a_val == b_val ? 0 : 1;
}
/*
Compare two integers in IN value list format (packed_longlong)
SYNOPSIS
cmp_longlong()
cmp_arg an argument passed to the calling function (qsort2)
a left argument
b right argument
DESCRIPTION
This function will compare two integer arguments in the IN value list
format and will return -1, 0, or 1 if left argument is smaller than,
equal to or greater than the right argument.
It's used in sorting the IN values list and finding an element in it.
Depending on the signedness of the arguments cmp_longlong() will
compare them as either signed (using cmp_longs()) or unsigned (using
cmp_ulongs()).
RETURN VALUE
-1 left argument is smaller than the right argument.
0 left argument is equal to the right argument.
1 left argument is greater than the right argument.
*/
int cmp_longlong(void *cmp_arg,
in_longlong::packed_longlong *a,
in_longlong::packed_longlong *b)
{
if (a->unsigned_flag != b->unsigned_flag)
{
/*
One of the args is unsigned and is too big to fit into the
positive signed range. Report no match.
*/
if (a->unsigned_flag && ((ulonglong) a->val) > LONGLONG_MAX ||
b->unsigned_flag && ((ulonglong) b->val) > LONGLONG_MAX)
return a->unsigned_flag ? 1 : -1;
/*
Although the signedness differs both args can fit into the signed
positive range. Make them signed and compare as usual.
*/
return cmp_longs (a->val, b->val);
}
if (a->unsigned_flag)
return cmp_ulongs ((ulonglong) a->val, (ulonglong) b->val);
else
return cmp_longs (a->val, b->val);
}
static int cmp_double(void *cmp_arg, double *a,double *b)
@ -2317,19 +2408,23 @@ void in_row::set(uint pos, Item *item)
}
in_longlong::in_longlong(uint elements)
:in_vector(elements,sizeof(longlong),(qsort2_cmp) cmp_longlong, 0)
:in_vector(elements,sizeof(packed_longlong),(qsort2_cmp) cmp_longlong, 0)
{}
void in_longlong::set(uint pos,Item *item)
{
((longlong*) base)[pos]=item->val_int();
struct packed_longlong *buff= &((packed_longlong*) base)[pos];
buff->val= item->val_int();
buff->unsigned_flag= item->unsigned_flag;
}
byte *in_longlong::get_value(Item *item)
{
tmp= item->val_int();
tmp.val= item->val_int();
if (item->null_value)
return 0;
tmp.unsigned_flag= item->unsigned_flag;
return (byte*) &tmp;
}
@ -2665,6 +2760,31 @@ void Item_func_in::fix_length_and_dec()
*/
if (type_cnt == 1 && const_itm && !nulls_in_row())
{
/*
IN must compare INT/DATE/DATETIME/TIMESTAMP columns and constants
as int values (the same way as equality does).
So we must check here if the column on the left and all the constant
values on the right can be compared as integers and adjust the
comparison type accordingly.
*/
if (args[0]->real_item()->type() == FIELD_ITEM &&
thd->lex->sql_command != SQLCOM_CREATE_VIEW &&
thd->lex->sql_command != SQLCOM_SHOW_CREATE &&
cmp_type != INT_RESULT)
{
Field *field= ((Item_field*) (args[0]->real_item()))->field;
if (field->can_be_compared_as_longlong())
{
bool all_converted= TRUE;
for (arg=args+1, arg_end=args+arg_count; arg != arg_end ; arg++)
{
if (!convert_constant_item (thd, field, &arg[0]))
all_converted= FALSE;
}
if (all_converted)
cmp_type= INT_RESULT;
}
}
switch (cmp_type) {
case STRING_RESULT:
array=new in_string(arg_count - 1,(qsort2_cmp) srtcmp_in,

17
sql/item_cmpfunc.h
View file

@ -785,7 +785,16 @@ public:
class in_longlong :public in_vector
{
longlong tmp;
/*
Here we declare a temporary variable (tmp) of the same type as the
elements of this vector. tmp is used in finding if a given value is in
the list.
*/
struct packed_longlong
{
longlong val;
longlong unsigned_flag; // Use longlong, not bool, to preserve alignment
} tmp;
public:
in_longlong(uint elements);
void set(uint pos,Item *item);
@ -801,9 +810,13 @@ public:
}
void value_to_item(uint pos, Item *item)
{
((Item_int*)item)->value= ((longlong*)base)[pos];
((Item_int*) item)->value= ((packed_longlong*) base)[pos].val;
((Item_int*) item)->unsigned_flag= (my_bool)
((packed_longlong*) base)[pos].unsigned_flag;
}
Item_result result_type() { return INT_RESULT; }
friend int cmp_longlong(void *cmp_arg, packed_longlong *a,packed_longlong *b);
};
class in_double :public in_vector

9
sql/item_func.cc
View file

@ -413,8 +413,13 @@ bool Item_func::eq(const Item *item, bool binary_cmp) const
if (item->type() != FUNC_ITEM)
return 0;
Item_func *item_func=(Item_func*) item;
if (arg_count != item_func->arg_count ||
func_name() != item_func->func_name())
Item_func::Functype func_type;
if ((func_type= functype()) != item_func->functype() ||
arg_count != item_func->arg_count ||
(func_type != Item_func::FUNC_SP &&
func_name() != item_func->func_name()) ||
(func_type == Item_func::FUNC_SP &&
my_strcasecmp(system_charset_info, func_name(), item_func->func_name())))
return 0;
for (uint i=0; i < arg_count ; i++)
if (!args[i]->eq(item_func->args[i], binary_cmp))

6
sql/item_strfunc.h
View file

@ -601,7 +601,11 @@ class Item_func_unhex :public Item_str_func
{
String tmp_value;
public:
Item_func_unhex(Item *a) :Item_str_func(a) {}
Item_func_unhex(Item *a) :Item_str_func(a)
{
/* there can be bad hex strings */
maybe_null= 1;
}
const char *func_name() const { return "unhex"; }
String *val_str(String *);
void fix_length_and_dec()

25
sql/mysql_priv.h
View file

@ -1188,9 +1188,29 @@ SQL_SELECT *make_select(TABLE *head, table_map const_tables,
table_map read_tables, COND *conds,
bool allow_null_cond, int *error);
extern Item **not_found_item;
/*
This enumeration type is used only by the function find_item_in_list
to return the info on how an item has been resolved against a list
of possibly aliased items.
The item can be resolved:
- against an alias name of the list's element (RESOLVED_AGAINST_ALIAS)
- against non-aliased field name of the list (RESOLVED_WITH_NO_ALIAS)
- against an aliased field name of the list (RESOLVED_BEHIND_ALIAS)
- ignoring the alias name in cases when SQL requires to ignore aliases
(e.g. when the resolved field reference contains a table name or
when the resolved item is an expression) (RESOLVED_IGNORING_ALIAS)
*/
enum enum_resolution_type {
NOT_RESOLVED=0,
RESOLVED_IGNORING_ALIAS,
RESOLVED_BEHIND_ALIAS,
RESOLVED_WITH_NO_ALIAS,
RESOLVED_AGAINST_ALIAS
};
Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
find_item_error_report_type report_error,
bool *unaliased);
enum_resolution_type *resolution);
bool get_key_map_from_key_list(key_map *map, TABLE *table,
List<String> *index_list);
bool insert_fields(THD *thd, Name_resolution_context *context,
@ -1248,7 +1268,8 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
st_table_list *TABLE_LIST::*link,
const char *db_name,
const char *table_name);
TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list);
TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,
bool check_alias);
TABLE *find_temporary_table(THD *thd, const char *db, const char *table_name);
TABLE *find_temporary_table(THD *thd, TABLE_LIST *table_list);
bool close_temporary_table(THD *thd, TABLE_LIST *table_list);

140
sql/sql_base.cc
View file

@ -1410,6 +1410,7 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
thd thread handle
table table which should be checked
table_list list of tables
check_alias whether to check tables' aliases
NOTE: to exclude derived tables from check we use following mechanism:
a) during derived table processing set THD::derived_tables_processing
@ -1437,10 +1438,11 @@ TABLE_LIST *find_table_in_list(TABLE_LIST *table,
0 if table is unique
*/
TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list)
TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,
bool check_alias)
{
TABLE_LIST *res;
const char *d_name, *t_name;
const char *d_name, *t_name, *t_alias;
DBUG_ENTER("unique_table");
DBUG_PRINT("enter", ("table alias: %s", table->alias));
@ -1468,6 +1470,7 @@ TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list)
}
d_name= table->db;
t_name= table->table_name;
t_alias= table->alias;
DBUG_PRINT("info", ("real table: %s.%s", d_name, t_name));
for (;;)
@ -1475,6 +1478,9 @@ TABLE_LIST* unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list)
if (((! (res= find_table_in_global_list(table_list, d_name, t_name))) &&
(! (res= mysql_lock_have_duplicate(thd, table, table_list)))) ||
((!res->table || res->table != table->table) &&
(!check_alias || !(lower_case_table_names ?
my_strcasecmp(files_charset_info, t_alias, res->alias) :
strcmp(t_alias, res->alias))) &&
res->select_lex && !res->select_lex->exclude_from_table_unique_test &&
!res->prelocking_placeholder))
break;
@ -4577,10 +4583,13 @@ find_field_in_tables(THD *thd, Item_ident *item,
return not_found_item, report other errors,
return 0
IGNORE_ERRORS Do not report errors, return 0 if error
unaliased Set to true if item is field which was found
by original field name and not by its alias
in item list. Set to false otherwise.
resolution Set to the resolution type if the item is found
(it says whether the item is resolved
against an alias name,
or as a field name without alias,
or as a field hidden by alias,
or ignoring alias)
RETURN VALUES
0 Item is not found or item is not unique,
error message is reported
@ -4596,7 +4605,8 @@ Item **not_found_item= (Item**) 0x1;
Item **
find_item_in_list(Item *find, List<Item> &items, uint *counter,
find_item_error_report_type report_error, bool *unaliased)
find_item_error_report_type report_error,
enum_resolution_type *resolution)
{
List_iterator<Item> li(items);
Item **found=0, **found_unaliased= 0, *item;
@ -4610,10 +4620,9 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
*/
bool is_ref_by_name= 0;
uint unaliased_counter;
LINT_INIT(unaliased_counter); // Dependent on found_unaliased
*unaliased= FALSE;
*resolution= NOT_RESOLVED;
is_ref_by_name= (find->type() == Item::FIELD_ITEM ||
find->type() == Item::REF_ITEM);
@ -4680,63 +4689,77 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
}
found_unaliased= li.ref();
unaliased_counter= i;
*resolution= RESOLVED_IGNORING_ALIAS;
if (db_name)
break; // Perfect match
}
}
else if (!my_strcasecmp(system_charset_info, item_field->name,
field_name))
else
{
/*
If table name was not given we should scan through aliases
(or non-aliased fields) first. We are also checking unaliased
name of the field in then next else-if, to be able to find
instantly field (hidden by alias) if no suitable alias (or
non-aliased field) was found.
*/
if (found)
int fname_cmp= my_strcasecmp(system_charset_info,
item_field->field_name,
field_name);
if (!my_strcasecmp(system_charset_info,
item_field->name,field_name))
{
if ((*found)->eq(item, 0))
continue; // Same field twice
if (report_error != IGNORE_ERRORS)
my_error(ER_NON_UNIQ_ERROR, MYF(0),
find->full_name(), current_thd->where);
return (Item**) 0;
/*
If table name was not given we should scan through aliases
and non-aliased fields first. We are also checking unaliased
name of the field in then next else-if, to be able to find
instantly field (hidden by alias) if no suitable alias or
non-aliased field was found.
*/
if (found)
{
if ((*found)->eq(item, 0))
continue; // Same field twice
if (report_error != IGNORE_ERRORS)
my_error(ER_NON_UNIQ_ERROR, MYF(0),
find->full_name(), current_thd->where);
return (Item**) 0;
}
found= li.ref();
*counter= i;
*resolution= fname_cmp ? RESOLVED_AGAINST_ALIAS:
RESOLVED_WITH_NO_ALIAS;
}
found= li.ref();
*counter= i;
}
else if (!my_strcasecmp(system_charset_info, item_field->field_name,
field_name))
{
/*
We will use un-aliased field or react on such ambiguities only if
we won't be able to find aliased field.
Again if we have ambiguity with field outside of select list
we should prefer fields from select list.
*/
if (found_unaliased)
{
if ((*found_unaliased)->eq(item, 0))
continue; // Same field twice
found_unaliased_non_uniq= 1;
}
else
else if (!fname_cmp)
{
/*
We will use non-aliased field or react on such ambiguities only if
we won't be able to find aliased field.
Again if we have ambiguity with field outside of select list
we should prefer fields from select list.
*/
if (found_unaliased)
{
if ((*found_unaliased)->eq(item, 0))
continue; // Same field twice
found_unaliased_non_uniq= 1;
}
found_unaliased= li.ref();
unaliased_counter= i;
}
}
}
else if (!table_name && (find->eq(item,0) ||
is_ref_by_name && find->name && item->name &&
!my_strcasecmp(system_charset_info,
item->name,find->name)))
{
found= li.ref();
*counter= i;
break;
}
else if (!table_name)
{
if (is_ref_by_name && find->name && item->name &&
!my_strcasecmp(system_charset_info,item->name,find->name))
{
found= li.ref();
*counter= i;
*resolution= RESOLVED_AGAINST_ALIAS;
break;
}
else if (find->eq(item,0))
{
found= li.ref();
*counter= i;
*resolution= RESOLVED_IGNORING_ALIAS;
break;
}
}
}
if (!found)
{
@ -4751,7 +4774,7 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
{
found= found_unaliased;
*counter= unaliased_counter;
*unaliased= TRUE;
*resolution= RESOLVED_BEHIND_ALIAS;
}
}
if (found)
@ -5533,6 +5556,7 @@ bool setup_fields(THD *thd, Item **ref_pointer_array,
enum_mark_columns save_mark_used_columns= thd->mark_used_columns;
nesting_map save_allow_sum_func= thd->lex->allow_sum_func;
List_iterator<Item> it(fields);
bool save_is_item_list_lookup;
DBUG_ENTER("setup_fields");
thd->mark_used_columns= mark_used_columns;
@ -5540,6 +5564,8 @@ bool setup_fields(THD *thd, Item **ref_pointer_array,
if (allow_sum_func)
thd->lex->allow_sum_func|= 1 << thd->lex->current_select->nest_level;
thd->where= THD::DEFAULT_WHERE;
save_is_item_list_lookup= thd->lex->current_select->is_item_list_lookup;
thd->lex->current_select->is_item_list_lookup= 0;
/*
To prevent fail on forward lookup we fill it with zerows,
@ -5562,6 +5588,7 @@ bool setup_fields(THD *thd, Item **ref_pointer_array,
if (!item->fixed && item->fix_fields(thd, it.ref()) ||
(item= *(it.ref()))->check_cols(1))
{
thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
thd->lex->allow_sum_func= save_allow_sum_func;
thd->mark_used_columns= save_mark_used_columns;
DBUG_PRINT("info", ("thd->mark_used_columns: %d", thd->mark_used_columns));
@ -5575,6 +5602,7 @@ bool setup_fields(THD *thd, Item **ref_pointer_array,
thd->used_tables|= item->used_tables();
thd->lex->current_select->cur_pos_in_select_list++;
}
thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
thd->lex->current_select->cur_pos_in_select_list= UNDEF_POS;
thd->lex->allow_sum_func= save_allow_sum_func;
@ -6068,6 +6096,8 @@ int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
*/
bool it_is_update= (select_lex == &thd->lex->select_lex) &&
thd->lex->which_check_option_applicable();
bool save_is_item_list_lookup= select_lex->is_item_list_lookup;
select_lex->is_item_list_lookup= 0;
DBUG_ENTER("setup_conds");
if (select_lex->conds_processed_with_permanent_arena ||
@ -6143,9 +6173,11 @@ int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
select_lex->where= *conds;
select_lex->conds_processed_with_permanent_arena= 1;
}
thd->lex->current_select->is_item_list_lookup= save_is_item_list_lookup;
DBUG_RETURN(test(thd->net.report_error));
err_no_arena:
select_lex->is_item_list_lookup= save_is_item_list_lookup;
DBUG_RETURN(1);
}

4
sql/sql_delete.cc
View file

@ -395,7 +395,7 @@ bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds)
}
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
if ((duplicate= unique_table(thd, table_list, table_list->next_global, 0)))
{
update_non_unique_table_error(table_list, "DELETE", duplicate);
DBUG_RETURN(TRUE);
@ -492,7 +492,7 @@ bool mysql_multi_delete_prepare(THD *thd)
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, target_tbl->correspondent_table,
lex->query_tables)))
lex->query_tables, 0)))
{
update_non_unique_table_error(target_tbl->correspondent_table,
"DELETE", duplicate);

4
sql/sql_insert.cc
View file

@ -1063,7 +1063,7 @@ bool mysql_prepare_insert(THD *thd, TABLE_LIST *table_list,
{
Item *fake_conds= 0;
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
if ((duplicate= unique_table(thd, table_list, table_list->next_global, 1)))
{
update_non_unique_table_error(table_list, "INSERT", duplicate);
DBUG_RETURN(TRUE);
@ -2576,7 +2576,7 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
query
*/
if (!(lex->current_select->options & OPTION_BUFFER_RESULT) &&
unique_table(thd, table_list, table_list->next_global))
unique_table(thd, table_list, table_list->next_global, 0))
{
/* Using same table for INSERT and SELECT */
lex->current_select->options|= OPTION_BUFFER_RESULT;

1
sql/sql_lex.cc
View file

@ -1224,6 +1224,7 @@ void st_select_lex::init_select()
is_correlated= 0;
cur_pos_in_select_list= UNDEF_POS;
non_agg_fields.empty();
cond_value= having_value= Item::COND_UNDEF;
inner_refs_list.empty();
}

2
sql/sql_lex.h
View file

@ -523,6 +523,8 @@ public:
Item *where, *having; /* WHERE & HAVING clauses */
Item *prep_where; /* saved WHERE clause for prepared statement processing */
Item *prep_having;/* saved HAVING clause for prepared statement processing */
/* Saved values of the WHERE and HAVING clauses*/
Item::cond_result cond_value, having_value;
/* point on lex in which it was created, used in view subquery detection */
st_lex *parent_lex;
enum olap_type olap;

2
sql/sql_load.cc
View file

@ -175,7 +175,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
table is marked to be 'used for insert' in which case we should never
mark this table as 'const table' (ie, one that has only one row).
*/
if (unique_table(thd, table_list, table_list->next_global))
if (unique_table(thd, table_list, table_list->next_global, 0))
{
my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->table_name);
DBUG_RETURN(TRUE);

4
sql/sql_parse.cc
View file

@ -2171,7 +2171,7 @@ mysql_execute_command(THD *thd)
if (!(lex->create_info.options & HA_LEX_CREATE_TMP_TABLE))
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, create_table, select_tables)))
if ((duplicate= unique_table(thd, create_table, select_tables, 0)))
{
update_non_unique_table_error(create_table, "CREATE", duplicate);
res= 1;
@ -2187,7 +2187,7 @@ mysql_execute_command(THD *thd)
tab= tab->next_local)
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, tab, select_tables)))
if ((duplicate= unique_table(thd, tab, select_tables, 0)))
{
update_non_unique_table_error(tab, "CREATE", duplicate);
res= 1;

49
sql/sql_select.cc
View file

@ -396,6 +396,7 @@ JOIN::prepare(Item ***rref_pointer_array,
join_list= &select_lex->top_join_list;
union_part= (unit_arg->first_select()->next_select() != 0);
thd->lex->current_select->is_item_list_lookup= 1;
/*
If we have already executed SELECT, then it have not sense to prevent
its table from update (see unique_table())
@ -455,6 +456,17 @@ JOIN::prepare(Item ***rref_pointer_array,
select_lex->fix_prepare_information(thd, &conds, &having);
if (order)
{
ORDER *ord;
for (ord= order; ord; ord= ord->next)
{
Item *item= *ord->item;
if (item->with_sum_func && item->type() != Item::SUM_FUNC_ITEM)
item->split_sum_func(thd, ref_pointer_array, all_fields);
}
}
if (having && having->with_sum_func)
having->split_sum_func2(thd, ref_pointer_array, all_fields,
&having, TRUE);
@ -738,7 +750,6 @@ JOIN::optimize()
}
{
Item::cond_result having_value;
having= optimize_cond(this, having, join_list, &having_value);
if (thd->net.report_error)
{
@ -746,6 +757,10 @@ JOIN::optimize()
DBUG_PRINT("error",("Error from optimize_cond"));
DBUG_RETURN(1);
}
if (select_lex->where)
select_lex->cond_value= cond_value;
if (select_lex->having)
select_lex->having_value= having_value;
if (cond_value == Item::COND_FALSE || having_value == Item::COND_FALSE ||
(!unit->select_limit_cnt && !(select_options & OPTION_FOUND_ROWS)))
@ -906,6 +921,7 @@ JOIN::optimize()
conds->update_used_tables();
DBUG_EXECUTE("where", print_where(conds, "after substitute_best_equal"););
}
/*
Permorm the the optimization on fields evaluation mentioned above
for all on expressions.
@ -7772,6 +7788,10 @@ static COND* substitute_for_best_equal_field(COND *cond,
break;
}
}
if (cond->type() == Item::COND_ITEM &&
!((Item_cond*)cond)->argument_list()->elements)
cond= new Item_int((int32)cond->val_bool());
}
else if (cond->type() == Item::FUNC_ITEM &&
((Item_cond*) cond)->functype() == Item_func::MULT_EQUAL_FUNC)
@ -13407,7 +13427,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
Item **select_item; /* The corresponding item from the SELECT clause. */
Field *from_field; /* The corresponding field from the FROM clause. */
uint counter;
bool unaliased;
enum_resolution_type resolution;
/*
Local SP variables may be int but are expressions, not positions.
@ -13430,7 +13450,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
}
/* Lookup the current GROUP/ORDER field in the SELECT clause. */
select_item= find_item_in_list(order_item, fields, &counter,
REPORT_EXCEPT_NOT_FOUND, &unaliased);
REPORT_EXCEPT_NOT_FOUND, &resolution);
if (!select_item)
return TRUE; /* The item is not unique, or some other error occured. */
@ -13444,7 +13464,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
original field name, we should additionaly check if we have conflict
for this name (in case if we would perform lookup in all tables).
*/
if (unaliased && !order_item->fixed &&
if (resolution == RESOLVED_BEHIND_ALIAS && !order_item->fixed &&
order_item->fix_fields(thd, order->item))
return TRUE;
@ -13514,16 +13534,11 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
We check order_item->fixed because Item_func_group_concat can put
arguments for which fix_fields already was called.
*/
thd->lex->current_select->is_item_list_lookup= 1;
if (!order_item->fixed &&
(order_item->fix_fields(thd, order->item) ||
(order_item= *order->item)->check_cols(1) ||
thd->is_fatal_error))
{
thd->lex->current_select->is_item_list_lookup= 0;
return TRUE; /* Wrong field. */
}
thd->lex->current_select->is_item_list_lookup= 0;
uint el= all_fields.elements;
all_fields.push_front(order_item); /* Add new field to field list. */
@ -13675,7 +13690,7 @@ setup_new_fields(THD *thd, List<Item> &fields,
{
Item **item;
uint counter;
bool not_used;
enum_resolution_type not_used;
DBUG_ENTER("setup_new_fields");
thd->mark_used_columns= MARK_COLUMNS_READ; // Not really needed, but...
@ -15635,10 +15650,13 @@ void st_select_lex::print(THD *thd, String *str)
Item *cur_where= where;
if (join)
cur_where= join->conds;
if (cur_where)
if (cur_where || cond_value != Item::COND_UNDEF)
{
str->append(STRING_WITH_LEN(" where "));
cur_where->print(str);
if (cur_where)
cur_where->print(str);
else
str->append(cond_value != Item::COND_FALSE ? "1" : "0");
}
// group by & olap
@ -15664,10 +15682,13 @@ void st_select_lex::print(THD *thd, String *str)
if (join)
cur_having= join->having;
if (cur_having)
if (cur_having || having_value != Item::COND_UNDEF)
{
str->append(STRING_WITH_LEN(" having "));
cur_having->print(str);
if (cur_having)
cur_having->print(str);
else
str->append(having_value != Item::COND_FALSE ? "1" : "0");
}
if (order_list.elements)

2
sql/sql_select.h
View file

@ -331,7 +331,7 @@ public:
bool need_tmp, hidden_group_fields;
DYNAMIC_ARRAY keyuse;
Item::cond_result cond_value;
Item::cond_result cond_value, having_value;
List<Item> all_fields; // to store all fields that used in query
//Above list changed to use temporary table
List<Item> tmp_all_fields1, tmp_all_fields2, tmp_all_fields3;

6
sql/sql_update.cc
View file

@ -761,7 +761,7 @@ bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
/* Check that we are not using table that we are updating in a sub select */
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, table_list, table_list->next_global)))
if ((duplicate= unique_table(thd, table_list, table_list->next_global, 0)))
{
update_non_unique_table_error(table_list, "UPDATE", duplicate);
my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->table_name);
@ -987,7 +987,7 @@ reopen_tables:
tl->lock_type != TL_READ_NO_INSERT)
{
TABLE_LIST *duplicate;
if ((duplicate= unique_table(thd, tl, table_list)))
if ((duplicate= unique_table(thd, tl, table_list, 0)))
{
update_non_unique_table_error(table_list, "UPDATE", duplicate);
DBUG_RETURN(TRUE);
@ -1203,7 +1203,7 @@ static bool safe_update_on_fly(THD *thd, JOIN_TAB *join_tab,
TABLE_LIST *table_ref, TABLE_LIST *all_tables)
{
TABLE *table= join_tab->table;
if (unique_table(thd, table_ref, all_tables))
if (unique_table(thd, table_ref, all_tables, 0))
return 0;
switch (join_tab->type) {
case JT_SYSTEM: