Merge bk@192.168.21.1:mysql-5.1

into  mysql.com:/home/hf/work/mrg/mysql-5.1-opt

32 files changed, 629 insertions, 114 deletions

diff --git a/BUILD/check-cpu b/BUILD/check-cpu
index 9edde51402f..24b76c7198d 100755
--- a/BUILD/check-cpu
+++ b/BUILD/check-cpu
@@ -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*)
diff --git a/mysql-test/r/explain.result b/mysql-test/r/explain.result
index e0d9f5131b4..8d5d6adefa5 100644
--- a/mysql-test/r/explain.result
+++ b/mysql-test/r/explain.result
@@ -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;
diff --git a/mysql-test/r/func_in.result b/mysql-test/r/func_in.result
index 9ec621b7f35..7a8f59c65f4 100644
--- a/mysql-test/r/func_in.result
+++ b/mysql-test/r/func_in.result
@@ -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');
diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index d6eb1ab06cf..6135221395d 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -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
diff --git a/mysql-test/r/func_test.result b/mysql-test/r/func_test.result
index 9a5cc666ca8..512369e4f61 100644
--- a/mysql-test/r/func_test.result
+++ b/mysql-test/r/func_test.result
@@ -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
diff --git a/mysql-test/r/order_by.result b/mysql-test/r/order_by.result
index b48e87de38e..8a19cfcded2 100644
--- a/mysql-test/r/order_by.result
+++ b/mysql-test/r/order_by.result
@@ -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));
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index 30e6d073d9a..fb90625546b 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -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');
diff --git a/mysql-test/r/update.result b/mysql-test/r/update.result
index a40d3451a62..94b62625c3f 100644
--- a/mysql-test/r/update.result
+++ b/mysql-test/r/update.result
@@ -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,
diff --git a/mysql-test/t/explain.test b/mysql-test/t/explain.test
index efce0cdf3b5..04cf37f457a 100644
--- a/mysql-test/t/explain.test
+++ b/mysql-test/t/explain.test
@@ -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.
diff --git a/mysql-test/t/func_in.test b/mysql-test/t/func_in.test
index c4274034889..31352e4c639 100644
--- a/mysql-test/t/func_in.test
+++ b/mysql-test/t/func_in.test
@@ -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
 
 
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index ddab3d03454..97651a42642 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -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
diff --git a/mysql-test/t/order_by.test b/mysql-test/t/order_by.test
index f2da8e44843..c9ae0964e17 100644
--- a/mysql-test/t/order_by.test
+++ b/mysql-test/t/order_by.test
@@ -671,6 +671,14 @@ 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
 #
 CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), UNIQUE KEY b (b));
diff --git a/mysql-test/t/sp.test b/mysql-test/t/sp.test
index 76b94198161..884519801e2 100644
--- a/mysql-test/t/sp.test
+++ b/mysql-test/t/sp.test
@@ -6828,6 +6828,21 @@ 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!
 #
diff --git a/mysql-test/t/update.test b/mysql-test/t/update.test
index 23ee75d61ea..6cec940d286 100644
--- a/mysql-test/t/update.test
+++ b/mysql-test/t/update.test
@@ -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
 
 #
diff --git a/mysql-test/t/view.test b/mysql-test/t/view.test
index 520babafb7e..9771c5bc96e 100644
--- a/mysql-test/t/view.test
+++ b/mysql-test/t/view.test
@@ -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.
 
diff --git a/sql/item.cc b/sql/item.cc
index 43f182307f1..f2ec94bb92e 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -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)
@@ -3664,9 +3666,9 @@ 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 +3786,14 @@ 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 +4999,12 @@ 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 +5287,13 @@ 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 +5311,7 @@ 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));
diff --git a/sql/item.h b/sql/item.h
index be4636db91e..fbcfb8d3b6e 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -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) {}
 
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc
index e78550598f5..7e5df8fdbbf 100644
--- a/sql/item_cmpfunc.cc
+++ b/sql/item_cmpfunc.cc
@@ -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,
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 3b08036368c..edc905d50ff 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -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
diff --git a/sql/item_func.cc b/sql/item_func.cc
index 55888f6b16a..c823575b240 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -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))
diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h
index ae11e001551..628b51a70d7 100644
--- a/sql/item_strfunc.h
+++ b/sql/item_strfunc.h
@@ -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()
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index a1a7c20fc50..efcbdf968bf 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -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);
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 44325fe7b12..e764c498059 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -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))
-      {
-        /*
-          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)
-        {
-          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;
-      }
-      else if (!my_strcasecmp(system_charset_info, item_field->field_name,
-                              field_name))
+      else
       {
-        /*
-          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)
+        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_unaliased)->eq(item, 0))
-            continue;                           // Same field twice
-          found_unaliased_non_uniq= 1;
+          /*
+            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;
         }
-        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);
 }
 
diff --git a/sql/sql_delete.cc b/sql/sql_delete.cc
index 3ab053d1741..07313c954ba 100644
--- a/sql/sql_delete.cc
+++ b/sql/sql_delete.cc
@@ -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);
diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc
index f58d08b8dea..479154cbed2 100644
--- a/sql/sql_insert.cc
+++ b/sql/sql_insert.cc
@@ -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;
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index ef1f0592051..389e7b5fd7a 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -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();
 }
 
diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 33d028c829e..1271df5e458 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -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;
diff --git a/sql/sql_load.cc b/sql/sql_load.cc
index 09066e875bd..cf356a4b336 100644
--- a/sql/sql_load.cc
+++ b/sql/sql_load.cc
@@ -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);
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 33209b6e023..bfcbd4663b4 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -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;
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index d062cbb3ef6..6438c64b7ca 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -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 +7788,9 @@ static COND* substitute_for_best_equal_field(COND *cond,
           break;
       }
     }
+    if (!((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 +13426,7 @@ 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 +13449,7 @@ 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 +13463,7 @@ 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 +13533,11 @@ 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 +13689,7 @@ 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 +15649,13 @@ 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 +15681,13 @@ 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)
diff --git a/sql/sql_select.h b/sql/sql_select.h
index 1d1fa666c60..2e01e54e4ca 100644
--- a/sql/sql_select.h
+++ b/sql/sql_select.h
@@ -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;
diff --git a/sql/sql_update.cc b/sql/sql_update.cc
index 27a58a295ff..5aea05a9d39 100644
--- a/sql/sql_update.cc
+++ b/sql/sql_update.cc
@@ -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: