26 files changed, 259 insertions, 48 deletions
diff --git a/Build-tools/Bootstrap b/Build-tools/Bootstrap
index 10ebc5c2dd1..827eb4022d7 100755
--- a/Build-tools/Bootstrap
+++ b/Build-tools/Bootstrap
@@ -210,10 +210,16 @@ if (-d $target_dir)
 	}
 	else
 	{
-		&logger("Renaming $target_dir to $target_dir.old." . $$);
+		# Get the time stamp of "configure.in"
+		@stat= stat("$target_dir/configure.in");
+		my $mtime= $stat[9];
+		my ($sec,$min,$hour,$mday,$mon,$year) = localtime($mtime);
+		my $mtime= sprintf("%04d%-02d-%02d-%02d:%02d", $year+1900, $mon+1, $mday, $hour, $min);
+
+		&logger("Renaming $target_dir to $target_dir-$mtime");
 		$command= "mv ";
 		$command.= "-v " if ($opt_verbose || defined $opt_log);
-		$command.= "$target_dir $target_dir.old." . $$;
+		$command.= "$target_dir $target_dir-$mtime";
 		&run_command($command, "Could not rename $target_dir!");
 	}
 }
diff --git a/client/mysqldump.c b/client/mysqldump.c
index 3a93adf5b36..afaa2dc5a6d 100644
--- a/client/mysqldump.c
+++ b/client/mysqldump.c
@@ -489,7 +489,7 @@ static void write_header(FILE *sql_file, char *db_name)
 ");
     }
     fprintf(sql_file,
-	    "/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE=\"%s%s%s\" */;\n",
+	    "/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='%s%s%s' */;\n",
 	    path?"":"NO_AUTO_VALUE_ON_ZERO",compatible_mode_normal_str[0]==0?"":",",
 	    compatible_mode_normal_str);
     check_io(sql_file);
@@ -863,7 +863,7 @@ static int dbConnect(char *host, char *user,char *passwd)
     cannot reconnect.
   */
   sock->reconnect= 0;
-  sprintf(buff, "/*!40100 SET @@SQL_MODE=\"%s\" */",
+  sprintf(buff, "/*!40100 SET @@SQL_MODE='%s' */",
 	  compatible_mode_normal_str);
   if (mysql_query_with_error_report(sock, 0, buff))
   {
diff --git a/extra/perror.c b/extra/perror.c
index 1bd4b203120..fc10d8eaecc 100644
--- a/extra/perror.c
+++ b/extra/perror.c
@@ -184,6 +184,7 @@ int main(int argc,char *argv[])
 {
   int error,code,found;
   const char *msg;
+  char *unknown_error = 0;
   MY_INIT(argv[0]);
 
   if (get_options(&argc,&argv))
@@ -212,7 +213,12 @@ int main(int argc,char *argv[])
       string 'Unknown Error'.  To avoid printing it we try to find the
       error string by asking for an impossible big error message.
     */
-    const char *unknown_error= strerror(10000);
+    msg = strerror(10000);
+
+    /* allocate a buffer for unknown_error since strerror always returns the same pointer 
+      on some platforms such as Windows */
+    unknown_error = malloc( strlen(msg)+1 );
+    strcpy( unknown_error, msg );
 
     for ( ; argc-- > 0 ; argv++)
     {
@@ -262,6 +268,11 @@ int main(int argc,char *argv[])
       }
     }
   }
+
+  /* if we allocated a buffer for unknown_error, free it now */
+  if (unknown_error)
+	  free(unknown_error);
+
   exit(error);
   return error;
 }
diff --git a/mysql-test/r/compare.result b/mysql-test/r/compare.result
index bf8a5106044..49ec2dd85cc 100644
--- a/mysql-test/r/compare.result
+++ b/mysql-test/r/compare.result
@@ -36,3 +36,6 @@ hex(a)	STRCMP(a,'a')	STRCMP(a,'a ')
 6109	-1	-1
 61	0	0
 DROP TABLE t1;
+SELECT CHAR(31) = '', '' = CHAR(31);
+CHAR(31) = ''	'' = CHAR(31)
+0	0
diff --git a/mysql-test/r/derived.result b/mysql-test/r/derived.result
index 7e6b9b44566..61d745d0236 100644
--- a/mysql-test/r/derived.result
+++ b/mysql-test/r/derived.result
@@ -330,3 +330,12 @@ SELECT MIN(price) min, MAX(price) max, AVG(price) avg FROM (SELECT SUBSTRING( MA
 min	max	avg
 10.00	10.00	10
 DROP TABLE t1;
+create table t1 (a integer, b integer);
+insert into t1 values (1,4), (2,2),(2,2), (4,1),(4,1),(4,1),(4,1);
+select distinct sum(b) from t1 group by a;
+sum(b)
+4
+select distinct sum(b) from (select a,b from t1) y group by a;
+sum(b)
+4
+drop table t1;
diff --git a/mysql-test/r/mysqldump.result b/mysql-test/r/mysqldump.result
index 623bd2a0f3c..8f2294caa48 100644
--- a/mysql-test/r/mysqldump.result
+++ b/mysql-test/r/mysqldump.result
@@ -60,7 +60,7 @@ INSERT INTO `t1` VALUES ('1.23450',2.3456),('1.23450',2.3456),('1.23450',2.3456)
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` decimal(10,5) default NULL,
@@ -83,7 +83,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 CREATE TABLE `t1` (
   `a` decimal(10,5) default NULL,
   `b` float default NULL
@@ -149,7 +149,7 @@ INSERT INTO t1  VALUES (_koi8r x'C1C2C3C4C5'), (NULL);
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` varchar(255) default NULL
@@ -175,7 +175,7 @@ CREATE TABLE t1 (a int) ENGINE=MYISAM;
 INSERT INTO t1 VALUES (1), (2);
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,MYSQL40" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,MYSQL40' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` int(11) default NULL
@@ -194,7 +194,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,MYSQL323" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,MYSQL323' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` int(11) default NULL
@@ -225,7 +225,7 @@ create table t1(a int);
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` int(11) default NULL
@@ -246,7 +246,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,ANSI" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,ANSI' */;
 DROP TABLE IF EXISTS "t1";
 CREATE TABLE "t1" (
   "a" int(11) default NULL
@@ -270,7 +270,7 @@ set global sql_mode='ANSI_QUOTES';
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` int(11) default NULL
@@ -291,7 +291,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,ANSI" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,ANSI' */;
 DROP TABLE IF EXISTS "t1";
 CREATE TABLE "t1" (
   "a" int(11) default NULL
@@ -316,7 +316,7 @@ insert into t1 values (1),(2),(3);
 /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
 /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
 /*!40101 SET NAMES utf8 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` int(11) default NULL
@@ -339,7 +339,7 @@ drop table t1;
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 
 CREATE DATABASE /*!32312 IF NOT EXISTS*/ `test` /*!40100 DEFAULT CHARACTER SET latin1 */;
 
@@ -360,7 +360,7 @@ create database mysqldump_test_db character set latin2 collate latin2_bin;
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 
 CREATE DATABASE /*!32312 IF NOT EXISTS*/ `mysqldump_test_db` /*!40100 DEFAULT CHARACTER SET latin2 COLLATE latin2_bin */;
 
@@ -383,7 +383,7 @@ INSERT INTO t1  VALUES (_latin1 '����');
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` char(10) default NULL
@@ -405,7 +405,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,MYSQL323" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,MYSQL323' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` char(10) default NULL
@@ -424,7 +424,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,MYSQL323" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,MYSQL323' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` char(10) default NULL
@@ -443,7 +443,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,MYSQL323" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,MYSQL323' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` char(10) default NULL
@@ -462,7 +462,7 @@ UNLOCK TABLES;
 
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO,MYSQL323" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO,MYSQL323' */;
 DROP TABLE IF EXISTS `t1`;
 CREATE TABLE `t1` (
   `a` char(10) default NULL
@@ -491,7 +491,7 @@ INSERT INTO t2 VALUES (4),(5),(6);
 /*!40101 SET NAMES utf8 */;
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE="NO_AUTO_VALUE_ON_ZERO" */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
 DROP TABLE IF EXISTS `t2`;
 CREATE TABLE `t2` (
   `a` int(11) default NULL
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index 02662f9900a..437fd624ae1 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -2160,3 +2160,51 @@ ERROR 42S22: Unknown column 'a2' in 'scalar IN/ALL/ANY subquery'
 select * from t1 where a1 > any(select b1 from t2);
 a1
 drop table t1,t2;
+create table t1 (a integer, b integer);
+select (select * from t1) = (select 1,2);
+(select * from t1) = (select 1,2)
+NULL
+select (select 1,2) = (select * from t1);
+(select 1,2) = (select * from t1)
+NULL
+select  row(1,2) = ANY (select * from t1);
+row(1,2) = ANY (select * from t1)
+0
+select  row(1,2) != ALL (select * from t1);
+row(1,2) != ALL (select * from t1)
+1
+drop table t1;
+create table t1 (a integer, b integer);
+select row(1,(2,2)) in (select * from t1 );
+ERROR 21000: Operand should contain 2 column(s)
+select row(1,(2,2)) = (select * from t1 );
+ERROR 21000: Operand should contain 2 column(s)
+select (select * from t1) = row(1,(2,2));
+ERROR 21000: Operand should contain 1 column(s)
+drop table t1;
+create  table t1 (a integer);
+insert into t1 values (1);
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx ;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+select 1 as xx, 1 = ALL (  select 1 from t1 where 1 = xx );
+xx	1 = ALL (  select 1 from t1 where 1 = xx )
+1	1
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx from DUAL;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+drop table t1;
+CREATE TABLE `t1` ( `a` char(3) NOT NULL default '', `b` char(3) NOT NULL default '', `c` char(3) NOT NULL default '', PRIMARY KEY  (`a`,`b`,`c`)) ENGINE=InnoDB;
+CREATE TABLE t2 LIKE t1;
+INSERT INTO t1 VALUES (1,1,1);
+INSERT INTO t2 VALUES (1,1,1);
+PREPARE my_stmt FROM "SELECT t1.b, count(*) FROM t1 group by t1.b having
+count(*) > ALL (SELECT COUNT(*) FROM t2 WHERE t2.a=1 GROUP By t2.b)";
+EXECUTE my_stmt;
+b	count(*)
+EXECUTE my_stmt;
+b	count(*)
+deallocate prepare my_stmt;
+drop table t1,t2;
diff --git a/mysql-test/t/compare.test b/mysql-test/t/compare.test
index b0cef48dd3f..e3c042e608a 100644
--- a/mysql-test/t/compare.test
+++ b/mysql-test/t/compare.test
@@ -30,3 +30,6 @@ CREATE TABLE t1 (a char(10) not null);
 INSERT INTO t1 VALUES ('a'),('a\0'),('a\t'),('a ');
 SELECT hex(a),STRCMP(a,'a'), STRCMP(a,'a ') FROM t1;
 DROP TABLE t1;
+
+# Bug #8134: Comparison against CHAR(31) at end of string
+SELECT CHAR(31) = '', '' = CHAR(31);
diff --git a/mysql-test/t/derived.test b/mysql-test/t/derived.test
index 64e3fe8929b..8b322746ed6 100644
--- a/mysql-test/t/derived.test
+++ b/mysql-test/t/derived.test
@@ -214,3 +214,13 @@ CREATE TABLE `t1` ( `itemid` int(11) NOT NULL default '0', `grpid` varchar(15) N
 insert into t1 values (128, 'rozn', 2, now(), 10),(128, 'rozn', 1, now(), 10);
 SELECT MIN(price) min, MAX(price) max, AVG(price) avg FROM (SELECT SUBSTRING( MAX(concat(date_,";",price)), 12) price FROM t1 WHERE itemid=128 AND  grpid='rozn' GROUP BY itemid, grpid, vendor) lastprices;
 DROP TABLE t1;
+
+#
+# DISTINCT over grouped select on subquery in the FROM clause
+#
+create table t1 (a integer, b integer);
+insert into t1 values (1,4), (2,2),(2,2), (4,1),(4,1),(4,1),(4,1);
+select distinct sum(b) from t1 group by a;
+select distinct sum(b) from (select a,b from t1) y group by a;
+drop table t1;
+
diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test
index 3ee498ee380..cdec080611d 100644
--- a/mysql-test/t/subselect.test
+++ b/mysql-test/t/subselect.test
@@ -1414,8 +1414,11 @@ SELECT f1 FROM t1
    WHERE f1 <> ALL ( SELECT SUM(f1) AS sf1 FROM t2 HAVING sf1 > 10000);
 
 drop table t1,t2;
+
+#
 # Test for BUG#7885: Server crash when 'any' subselect compared to
 # non-existant field.
+#
 create table t1 (a1 int);
 create table t2 (b1 int);
 --error 1054
@@ -1423,3 +1426,56 @@ select * from t1 where a2 > any(select b1 from t2);
 select * from t1 where a1 > any(select b1 from t2);
 drop table t1,t2;
 
+
+#
+# Comparison subquery with * and row
+#
+create table t1 (a integer, b integer);
+select (select * from t1) = (select 1,2);
+select (select 1,2) = (select * from t1);
+# queries whih can be converted to IN
+select  row(1,2) = ANY (select * from t1);
+select  row(1,2) != ALL (select * from t1);
+drop table t1;
+
+#
+# Comparison subquery and row with nested rows
+#
+create table t1 (a integer, b integer);
+-- error 1241
+select row(1,(2,2)) in (select * from t1 );
+-- error 1241
+select row(1,(2,2)) = (select * from t1 );
+-- error 1241
+select (select * from t1) = row(1,(2,2));
+drop table t1;
+
+#
+# Forward reference detection
+#
+create  table t1 (a integer);
+insert into t1 values (1);
+-- error 1247
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx ;
+-- error 1247
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
+select 1 as xx, 1 = ALL (  select 1 from t1 where 1 = xx );
+-- error 1247
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
+-- error 1247
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx from DUAL;
+drop table t1;
+
+#
+# cleaning up of results of subselects (BUG#8125)
+#
+CREATE TABLE `t1` ( `a` char(3) NOT NULL default '', `b` char(3) NOT NULL default '', `c` char(3) NOT NULL default '', PRIMARY KEY  (`a`,`b`,`c`)) ENGINE=InnoDB;
+CREATE TABLE t2 LIKE t1;
+INSERT INTO t1 VALUES (1,1,1);
+INSERT INTO t2 VALUES (1,1,1);
+PREPARE my_stmt FROM "SELECT t1.b, count(*) FROM t1 group by t1.b having
+count(*) > ALL (SELECT COUNT(*) FROM t2 WHERE t2.a=1 GROUP By t2.b)";
+EXECUTE my_stmt;
+EXECUTE my_stmt;
+deallocate prepare my_stmt;
+drop table t1,t2;
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 502f8eb92f3..1d75ce99aee 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -4672,12 +4672,12 @@ ha_innobase::update_table_comment(
 		dict_print_info_on_foreign_keys(FALSE, file,
 				prebuilt->trx, prebuilt->table);
 		flen = ftell(file);
-		if(length + flen + 3 > 64000) {
+		if (flen < 0) {
+			flen = 0;
+		} else if (length + flen + 3 > 64000) {
 			flen = 64000 - 3 - length;
 		}
 
-		ut_ad(flen > 0);
-
 		/* allocate buffer for the full string, and
 		read the contents of the temporary file */
 
@@ -4741,12 +4741,12 @@ ha_innobase::get_foreign_key_create_info(void)
 		prebuilt->trx->op_info = (char*)"";
 
 		flen = ftell(file);
-		if(flen > 64000 - 1) {
+		if (flen < 0) {
+			flen = 0;
+		} else if(flen > 64000 - 1) {
 			flen = 64000 - 1;
 		}
 
-		ut_ad(flen >= 0);
-
 		/* allocate buffer for the string, and
 		read the contents of the temporary file */
 
@@ -5142,12 +5142,12 @@ innodb_show_status(
 	srv_printf_innodb_monitor(srv_monitor_file);
 	flen = ftell(srv_monitor_file);
 	os_file_set_eof(srv_monitor_file);
-	if(flen > 64000 - 1) {
+	if (flen < 0) {
+		flen = 0;
+	} else if (flen > 64000 - 1) {
 		flen = 64000 - 1;
 	}
 
-	ut_ad(flen > 0);
-
 	/* allocate buffer for the string, and
 	read the contents of the temporary file */
 
diff --git a/sql/item.cc b/sql/item.cc
index 8c45dffce75..ab29c147dfb 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -1482,12 +1482,13 @@ bool Item_field::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
       }
       else if (refer != (Item **)not_found_item)
       {
-	if (!(*refer)->fixed)
+	if (!last->ref_pointer_array[counter])
 	{
 	  my_error(ER_ILLEGAL_REFERENCE, MYF(0), name,
 		   "forward reference in item list");
 	  return -1;
 	}
+        DBUG_ASSERT((*refer)->fixed);
         /*
           Here, a subset of actions performed by Item_ref::set_properties
           is not enough. So we pass ptr to NULL into Item_[direct]_ref
@@ -2161,12 +2162,13 @@ bool Item_ref::fix_fields(THD *thd,TABLE_LIST *tables, Item **reference)
 	mark_as_dependent(thd, last, thd->lex->current_select, fld);
 	return 0;
       }
-      if (!(*ref)->fixed)
+      if (!last->ref_pointer_array[counter])
       {
         my_error(ER_ILLEGAL_REFERENCE, MYF(0), name,
                  "forward reference in item list");
         return -1;
       }
+      DBUG_ASSERT((*ref)->fixed);
       mark_as_dependent(thd, last, thd->lex->current_select,
                         this);
       if (place == IN_HAVING)
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 6834799688d..061ed468b78 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -213,7 +213,7 @@ class Item_bool_rowready_func2 :public Item_bool_func2
 public:
   Item_bool_rowready_func2(Item *a, Item *b) :Item_bool_func2(a, b)
   {
-    allowed_arg_cols= a->cols();
+    allowed_arg_cols= 0;  // Fetch this value from first argument
   }
   Item *neg_transformer(THD *thd);
   virtual Item *negated_item();
@@ -390,7 +390,10 @@ class Item_func_interval :public Item_int_func
   double *intervals;
 public:
   Item_func_interval(Item_row *a)
-    :Item_int_func(a),row(a),intervals(0) { allowed_arg_cols= a->cols(); }
+    :Item_int_func(a),row(a),intervals(0)
+  {
+    allowed_arg_cols= 0;    // Fetch this value from first argument
+  }
   longlong val_int();
   void fix_length_and_dec();
   const char *func_name() const { return "interval"; }
@@ -743,7 +746,7 @@ class Item_func_in :public Item_int_func
   Item_func_in(List<Item> &list)
     :Item_int_func(list), array(0), in_item(0), have_null(0)
   {
-    allowed_arg_cols= args[0]->cols();
+    allowed_arg_cols= 0;  // Fetch this value from first argument
   }
   longlong val_int();
   void fix_length_and_dec();
diff --git a/sql/item_func.cc b/sql/item_func.cc
index 7125f4704b8..bff49541252 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -303,10 +303,24 @@ Item_func::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
 	We can't yet set item to *arg as fix_fields may change *arg
 	We shouldn't call fix_fields() twice, so check 'fixed' field first
       */
-      if ((!(*arg)->fixed && (*arg)->fix_fields(thd, tables, arg)) ||
-	  (*arg)->check_cols(allowed_arg_cols))
+      if ((!(*arg)->fixed && (*arg)->fix_fields(thd, tables, arg)))
 	return 1;				/* purecov: inspected */
+
       item= *arg;
+
+      if (allowed_arg_cols)
+      {
+        if (item->check_cols(allowed_arg_cols))
+          return 1;
+      }
+      else
+      {
+        /*  we have to fetch allowed_arg_cols from first argument */
+        DBUG_ASSERT(arg == args); // it is first argument
+        allowed_arg_cols= item->cols();
+        DBUG_ASSERT(allowed_arg_cols); // Can't be 0 any more
+      }
+
       if (item->maybe_null)
 	maybe_null=1;
 
diff --git a/sql/item_func.h b/sql/item_func.h
index ce2b34499d6..8a5347d675e 100644
--- a/sql/item_func.h
+++ b/sql/item_func.h
@@ -32,6 +32,10 @@ class Item_func :public Item_result_field
 {
 protected:
   Item **args, *tmp_arg[2];
+  /*
+    Allowed numbers of columns in result (usually 1, which means scalar value)
+    0 means get this number from first argument
+  */
   uint allowed_arg_cols;
 public:
   uint arg_count;
diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc
index 8516ea76a7e..16186b1a6d3 100644
--- a/sql/item_subselect.cc
+++ b/sql/item_subselect.cc
@@ -995,6 +995,10 @@ Item_in_subselect::row_value_transformer(JOIN *join)
     List_iterator_fast<Item> li(select_lex->item_list);
     for (uint i= 0; i < n; i++)
     {
+      DBUG_ASSERT(left_expr->fixed && select_lex->ref_pointer_array[i]->fixed);
+      if (select_lex->ref_pointer_array[i]->
+          check_cols(left_expr->el(i)->cols()))
+        goto err;
       Item *func= new Item_ref_null_helper(this,
 					   select_lex->ref_pointer_array+i,
 					   (char *) "<no matter>",
@@ -1123,6 +1127,7 @@ void subselect_single_select_engine::cleanup()
   DBUG_ENTER("subselect_single_select_engine::cleanup");
   prepared= optimized= executed= 0;
   join= 0;
+  result->cleanup();
   DBUG_VOID_RETURN;
 }
 
@@ -1131,6 +1136,7 @@ void subselect_union_engine::cleanup()
 {
   DBUG_ENTER("subselect_union_engine::cleanup");
   unit->reinit_exec_mechanism();
+  result->cleanup();
   DBUG_VOID_RETURN;
 }
 
@@ -1138,6 +1144,10 @@ void subselect_union_engine::cleanup()
 void subselect_uniquesubquery_engine::cleanup()
 {
   DBUG_ENTER("subselect_uniquesubquery_engine::cleanup");
+  /*
+    subselect_uniquesubquery_engine have not 'result' assigbed, so we do not
+    cleanup() it
+  */
   DBUG_VOID_RETURN;
 }
 
@@ -1421,13 +1431,15 @@ int subselect_indexsubquery_engine::exec()
 
 uint subselect_single_select_engine::cols()
 {
-  return select_lex->item_list.elements;
+  DBUG_ASSERT(select_lex->join); // should be called after fix_fields()
+  return select_lex->join->fields_list.elements;
 }
 
 
 uint subselect_union_engine::cols()
 {
-  return unit->first_select()->item_list.elements;
+  DBUG_ASSERT(unit->is_prepared());  // should be called after fix_fields()
+  return unit->types.elements;
 }
 
 
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index 06a17acd2a1..6218bc49f53 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -377,6 +377,7 @@ Item *negate_expression(THD *thd, Item *expr);
 struct Query_cache_query_flags
 {
   unsigned int client_long_flag:1;
+  unsigned int client_protocol_41:1;
   uint character_set_client_num;
   uint character_set_results_num;
   uint collation_connection_num;
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 7d26996856d..7434897ab90 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -2405,6 +2405,20 @@ int setup_fields(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
   thd->allow_sum_func= allow_sum_func;
   thd->where="field list";
 
+  /*
+    To prevent fail on forward lookup we fill it with zerows,
+    then if we got pointer on zero after find_item_in_list we will know
+    that it is forward lookup.
+
+    There is other way to solve problem: fill array with pointers to list,
+    but it will be slower.
+
+    TODO: remove it when (if) we made one list for allfields and
+    ref_pointer_array
+  */
+  if (ref_pointer_array)
+    bzero(ref_pointer_array, sizeof(Item *) * fields.elements);
+
   Item **ref= ref_pointer_array;
   while ((item= it++))
   {
diff --git a/sql/sql_cache.cc b/sql/sql_cache.cc
index 55e96ec0c6d..e1367412601 100644
--- a/sql/sql_cache.cc
+++ b/sql/sql_cache.cc
@@ -776,6 +776,8 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used)
     bzero(&flags, QUERY_CACHE_FLAGS_SIZE);
     flags.client_long_flag= (thd->client_capabilities & CLIENT_LONG_FLAG ?
 			     1 : 0);
+    flags.client_protocol_41= (thd->client_capabilities & CLIENT_PROTOCOL_41 ?
+			     1 : 0);
     flags.character_set_client_num=
       thd->variables.character_set_client->number;
     flags.character_set_results_num=
@@ -968,6 +970,8 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
   bzero(&flags, QUERY_CACHE_FLAGS_SIZE);
   flags.client_long_flag= (thd->client_capabilities & CLIENT_LONG_FLAG ?
 			   1 : 0);
+  flags.client_protocol_41= (thd->client_capabilities & CLIENT_PROTOCOL_41 ?
+                           1 : 0);
   flags.character_set_client_num= thd->variables.character_set_client->number;
   flags.character_set_results_num=
     (thd->variables.character_set_results ?
diff --git a/sql/sql_class.cc b/sql/sql_class.cc
index 596097d9dc2..e11d8369f57 100644
--- a/sql/sql_class.cc
+++ b/sql/sql_class.cc
@@ -1240,6 +1240,14 @@ bool select_singlerow_subselect::send_data(List<Item> &items)
 }
 
 
+void select_max_min_finder_subselect::cleanup()
+{
+  DBUG_ENTER("select_max_min_finder_subselect::cleanup");
+  cache= 0;
+  DBUG_VOID_RETURN;
+}
+
+
 bool select_max_min_finder_subselect::send_data(List<Item> &items)
 {
   DBUG_ENTER("select_max_min_finder_subselect::send_data");
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 8128690ab02..657a92b394c 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -1386,6 +1386,7 @@ public:
   select_max_min_finder_subselect(Item_subselect *item, bool mx)
     :select_subselect(item), cache(0), fmax(mx)
   {}
+  void cleanup();
   bool send_data(List<Item> &items);
   bool cmp_real();
   bool cmp_int();
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index 3ac783da9c4..ed974a48ad3 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -164,7 +164,10 @@ void lex_start(THD *thd, uchar *buf,uint length)
 
 void lex_end(LEX *lex)
 {
-  lex->select_lex.expr_list.delete_elements();	// If error when parsing sql-varargs
+  for (SELECT_LEX *sl= lex->all_selects_list;
+       sl;
+       sl= sl->next_select_in_list())
+    sl->expr_list.delete_elements();	// If error when parsing sql-varargs
   x_free(lex->yacc_yyss);
   x_free(lex->yacc_yyvs);
 }
diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index e2e0bc61c23..7cb71607edf 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -371,6 +371,7 @@ public:
 
   ulong init_prepare_fake_select_lex(THD *thd);
   int change_result(select_subselect *result, select_subselect *old_result);
+  inline bool is_prepared() { return prepared; }
 
   friend void lex_start(THD *thd, uchar *buf, uint length);
   friend int subselect_union_engine::exec();
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index ccfcb213068..8353ca9333d 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -1320,7 +1320,7 @@ JOIN::exec()
       curr_join->select_distinct=0;		/* Each row is unique */
     
     curr_join->join_free(0);			/* Free quick selects */
-    if (select_distinct && ! group_list)
+    if (curr_join->select_distinct && ! curr_join->group_list)
     {
       thd->proc_info="Removing duplicates";
       if (curr_join->tmp_having)
diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index 423a309767b..f3c107c2696 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -2272,8 +2272,7 @@ int mysql_create_like_table(THD* thd, TABLE_LIST* table,
     strxmov(src_path, (*tmp_table)->path, reg_ext, NullS);
   else
   {
-    strxmov(src_path, mysql_data_home, "/", src_db, "/", src_table,
-	    reg_ext, NullS);
+    fn_format( src_path, src_table, src_db, reg_ext, MYF(MY_UNPACK_FILENAME));
     if (access(src_path, F_OK))
     {
       my_error(ER_BAD_TABLE_ERROR, MYF(0), src_table);
@@ -2300,8 +2299,7 @@ int mysql_create_like_table(THD* thd, TABLE_LIST* table,
   }
   else
   {
-    strxmov(dst_path, mysql_data_home, "/", db, "/", table_name,
-	    reg_ext, NullS);
+    fn_format( dst_path, table_name, db, reg_ext, MYF(MY_UNPACK_FILENAME));
     if (!access(dst_path, F_OK))
       goto table_exists;
   }
diff --git a/strings/ctype-simple.c b/strings/ctype-simple.c
index 5bfa9e52595..4dc6a1be27b 100644
--- a/strings/ctype-simple.c
+++ b/strings/ctype-simple.c
@@ -153,7 +153,7 @@ int my_strnncollsp_simple(CHARSET_INFO * cs, const uchar *a, uint a_length,
       /* put shorter key in s */
       a_length= b_length;
       a= b;
-      swap= -1;					/* swap sign of result */
+      swap= -1^1;				/* swap sign of result */
     }
     for (end= a + a_length-length; a < end ; a++)
     {