Manual merge of mysql-5.1-bugteam into mysql-trunk-merge.

56 files changed, 1921 insertions, 340 deletions

diff --git a/client/mysql_upgrade.c b/client/mysql_upgrade.c
index 05eb80e5455..a1ca70c63eb 100644
--- a/client/mysql_upgrade.c
+++ b/client/mysql_upgrade.c
@@ -783,6 +783,10 @@ static int run_sql_fix_privilege_tables(void)
         found_real_errors++;
         print_line(line);
       }
+      else if (strncmp(line, "WARNING", 7) == 0)
+      {
+        print_line(line);
+      }
     } while ((line= get_line(line)) && *line);
   }
 
diff --git a/configure.in b/configure.in
index bc34dc0f07b..5838201e0ad 100644
--- a/configure.in
+++ b/configure.in
@@ -2113,7 +2113,7 @@ AC_CHECK_FUNCS(alarm bcmp bfill bmove bsearch bzero \
   sighold sigset sigthreadmask port_create sleep \
   snprintf socket stpcpy strcasecmp strerror strsignal strnlen strpbrk strstr \
   strtol strtoll strtoul strtoull tell tempnam thr_setconcurrency vidattr \
-  posix_fallocate backtrace backtrace_symbols backtrace_symbols_fd)
+  posix_fallocate backtrace backtrace_symbols backtrace_symbols_fd printstack)
 
 #
 #
diff --git a/include/my_stacktrace.h b/include/my_stacktrace.h
index e7ce42c1f4f..df384b1c566 100644
--- a/include/my_stacktrace.h
+++ b/include/my_stacktrace.h
@@ -23,7 +23,7 @@
     (defined(__alpha__) && defined(__GNUC__))
 #define HAVE_STACKTRACE 1
 #endif
-#elif defined(__WIN__)
+#elif defined(__WIN__) || defined(__sun)
 #define HAVE_STACKTRACE 1
 #endif
 
diff --git a/mysql-test/collections/default.experimental b/mysql-test/collections/default.experimental
index 363d47f079b..7f5faa23c1b 100644
--- a/mysql-test/collections/default.experimental
+++ b/mysql-test/collections/default.experimental
@@ -14,7 +14,6 @@ main.log_tables                          # Bug#47924 2009-10-08 alik main.log_ta
 main.plugin                              # Bug#47146 Linking problem with example plugin when dtrace enabled
 main.plugin_load                         # Bug#47146
 
-rpl.rpl_cross_version*                   # Bug#48340 2009-12-01 Daogang rpl_cross_version: Found warnings/errors in server log file!
 rpl.rpl_get_master_version_and_clock*    # Bug#49191 2009-12-01 Daogang rpl_get_master_version_and_clock failed on PB2: COM_REGISTER_SLAVE failed
 rpl.rpl_heartbeat_basic                  # BUG#43828 2009-10-22 luis fails sporadically
 rpl.rpl_heartbeat_2slaves                # BUG#43828 2009-10-22 luis fails sporadically
diff --git a/mysql-test/include/kill_query.inc b/mysql-test/include/kill_query.inc
index 341c3b93535..b303ed0ec39 100644
--- a/mysql-test/include/kill_query.inc
+++ b/mysql-test/include/kill_query.inc
@@ -52,7 +52,7 @@ if (`SELECT '$debug_lock' != ''`)
 
 # reap the result of the waiting query
 connection $connection_name;
-error 0, 1317, 1307, 1306, 1334, 1305;
+error 0, 1317, 1307, 1306, 1334, 1305, 1034;
 reap;
 
 connection master;
diff --git a/mysql-test/r/ctype_utf8.result b/mysql-test/r/ctype_utf8.result
index 4ff48bd380a..e5cc573a657 100644
--- a/mysql-test/r/ctype_utf8.result
+++ b/mysql-test/r/ctype_utf8.result
@@ -1848,6 +1848,24 @@ select hex(_utf8 B'001111111111');
 ERROR HY000: Invalid utf8 character string: 'FF'
 select (_utf8 X'616263FF');
 ERROR HY000: Invalid utf8 character string: 'FF'
+#
+# Bug#44131 Binary-mode "order by" returns records in incorrect order for UTF-8 strings
+#
+CREATE TABLE t1 (id int not null primary key, name varchar(10)) character set utf8;
+INSERT INTO t1 VALUES
+(2,'一二三01'),(3,'一二三09'),(4,'一二三02'),(5,'一二三08'),
+(6,'一二三11'),(7,'一二三91'),(8,'一二三21'),(9,'一二三81');
+SELECT * FROM t1 ORDER BY BINARY(name);
+id	name
+2	一二三01
+4	一二三02
+5	一二三08
+3	一二三09
+6	一二三11
+8	一二三21
+9	一二三81
+7	一二三91
+DROP TABLE t1;
 CREATE TABLE t1 (a INT NOT NULL, b INT NOT NULL);
 INSERT INTO t1 VALUES (70000, 1092), (70001, 1085), (70002, 1065);
 SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) FROM t1 GROUP BY b;
diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index 35ce190feb3..64988f9de50 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -2561,6 +2561,35 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	2	Using join buffer
 2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	2	
 drop table t1;
+#
+# Bug#49141: Encode function is significantly slower in 5.1 compared to 5.0
+#
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (a VARCHAR(20), b INT);
+CREATE TABLE t2 (a VARCHAR(20), b INT);
+INSERT INTO t1 VALUES ('ABC', 1);
+INSERT INTO t2 VALUES ('ABC', 1);
+SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
+FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
+DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
+secret
+SELECT DECODE((SELECT ENCODE('secret', 'ABC') FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
+FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
+DECODE((SELECT ENCODE('secret', 'ABC') FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
+secret
+SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), 'ABC')
+FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
+DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), 'ABC')
+secret
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 VALUES ('EDF', 3), ('BCD', 2), ('ABC', 1);
+INSERT INTO t2 VALUES ('EDF', 3), ('BCD', 2), ('ABC', 1);
+SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b LIMIT 1), t2.a)
+FROM t2 WHERE t2.b = 1 GROUP BY t2.b;
+DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b LIMIT 1), t2.a)
+secret
+DROP TABLE t1, t2;
 Start of 5.4 tests
 SELECT format(12345678901234567890.123, 3);
 format(12345678901234567890.123, 3)
diff --git a/mysql-test/r/mysql_upgrade.result b/mysql-test/r/mysql_upgrade.result
index b96b579d9b5..394beb042a5 100644
--- a/mysql-test/r/mysql_upgrade.result
+++ b/mysql-test/r/mysql_upgrade.result
@@ -127,4 +127,46 @@ mysql.time_zone_transition                         OK
 mysql.time_zone_transition_type                    OK
 mysql.user                                         OK
 set GLOBAL sql_mode=default;
+#
+# Bug #41569 mysql_upgrade (ver 5.1) add 3 fields to mysql.proc table 
+# but does not set values.
+#
+CREATE PROCEDURE testproc() BEGIN END;
+UPDATE mysql.proc SET character_set_client = NULL WHERE name LIKE 'testproc';
+UPDATE mysql.proc SET collation_connection = NULL WHERE name LIKE 'testproc';
+UPDATE mysql.proc SET db_collation = NULL WHERE name LIKE 'testproc';
+mtr.global_suppressions                            OK
+mtr.test_suppressions                              OK
+mysql.columns_priv                                 OK
+mysql.db                                           OK
+mysql.event                                        OK
+mysql.func                                         OK
+mysql.general_log
+Error    : You can't use locks with log tables.
+status   : OK
+mysql.help_category                                OK
+mysql.help_keyword                                 OK
+mysql.help_relation                                OK
+mysql.help_topic                                   OK
+mysql.host                                         OK
+mysql.ndb_binlog_index                             OK
+mysql.plugin                                       OK
+mysql.proc                                         OK
+mysql.procs_priv                                   OK
+mysql.servers                                      OK
+mysql.slow_log
+Error    : You can't use locks with log tables.
+status   : OK
+mysql.tables_priv                                  OK
+mysql.time_zone                                    OK
+mysql.time_zone_leap_second                        OK
+mysql.time_zone_name                               OK
+mysql.time_zone_transition                         OK
+mysql.time_zone_transition_type                    OK
+mysql.user                                         OK
+CALL testproc();
+DROP PROCEDURE testproc;
+WARNING: NULL values of the 'character_set_client' column ('mysql.proc' table) have been updated with a default value (latin1). Please verify if necessary.
+WARNING: NULL values of the 'collation_connection' column ('mysql.proc' table) have been updated with a default value (latin1_swedish_ci). Please verify if necessary.
+WARNING: NULL values of the 'db_collation' column ('mysql.proc' table) have been updated with default values. Please verify if necessary.
 The --upgrade-system-tables option was used, databases won't be touched.
diff --git a/mysql-test/r/order_by.result b/mysql-test/r/order_by.result
index 4add29a446f..6827fd0bc76 100644
--- a/mysql-test/r/order_by.result
+++ b/mysql-test/r/order_by.result
@@ -1463,6 +1463,15 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 col
 1
+# Must use ref-or-null on the a_c index
+EXPLAIN
+SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c DESC;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+x	x	x	ref_or_null	a_c,a	x	x	x	x	x
+# Must return 1 row
+SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c DESC;
+col
+1
 DROP TABLE t1;
 End of 5.0 tests
 CREATE TABLE t2 (a varchar(32), b int(11), c float, d double, 
diff --git a/mysql-test/r/ps.result b/mysql-test/r/ps.result
index 6c7e83134d7..23ba7e14532 100644
--- a/mysql-test/r/ps.result
+++ b/mysql-test/r/ps.result
@@ -1917,6 +1917,31 @@ execute stmt using @arg;
 ?
 -12345.5432100000
 deallocate prepare stmt;
+#
+# Bug#48508: Crash on prepared statement re-execution.
+#
+create table t1(b int);
+insert into t1 values (0);
+create view v1 AS select 1 as a from t1 where b;
+prepare stmt from "select * from v1 where a";
+execute stmt;
+a
+execute stmt;
+a
+deallocate prepare stmt;
+drop table t1;
+drop view v1;
+create table t1(a bigint);
+create table t2(b tinyint);
+insert into t2 values (null);
+prepare stmt from "select 1 from t1 join  t2 on a xor b where b > 1  and a =1";
+execute stmt;
+1
+execute stmt;
+1
+deallocate prepare stmt;
+drop table t1,t2;
+#
 End of 5.0 tests.
 create procedure proc_1() reset query cache;
 call proc_1();
@@ -2926,6 +2951,25 @@ execute stmt;
 Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator	character_set_client	collation_connection	Database Collation
 drop table t1;
 deallocate prepare stmt;
+#
+# Bug#49141: Encode function is significantly slower in 5.1 compared to 5.0
+#
+prepare encode from "select encode(?, ?) into @ciphertext";
+prepare decode from "select decode(?, ?) into @plaintext";
+set @str="abc", @key="cba";
+execute encode using @str, @key;
+execute decode using @ciphertext, @key;
+select @plaintext;
+@plaintext
+abc
+set @str="bcd", @key="dcb";
+execute encode using @str, @key;
+execute decode using @ciphertext, @key;
+select @plaintext;
+@plaintext
+bcd
+deallocate prepare encode;
+deallocate prepare decode;
 
 End of 5.1 tests.
 
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result
index 75ce166cb24..86f85feb2da 100644
--- a/mysql-test/r/select.result
+++ b/mysql-test/r/select.result
@@ -4441,6 +4441,91 @@ SELECT 1 FROM t2 JOIN t1 ON 1=1
 WHERE a != '1' AND NOT a >= b OR NOT ROW(b,a )<> ROW(a,a);
 1
 DROP TABLE t1,t2;
+#
+# Bug #49199: Optimizer handles incorrectly: 
+# field='const1' AND field='const2' in some cases
+
+CREATE TABLE t1(a DATETIME NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+a
+2001-01-01 00:00:00
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+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 '2001-01-01 00:00:00' AS `a` from `test`.`t1` where 1
+DROP TABLE t1;
+CREATE TABLE t1(a DATE NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+a
+2001-01-01
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+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 '2001-01-01' AS `a` from `test`.`t1` where 1
+DROP TABLE t1;
+CREATE TABLE t1(a TIMESTAMP NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+a
+2001-01-01 00:00:00
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+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 '2001-01-01 00:00:00' AS `a` from `test`.`t1` where 1
+DROP TABLE t1;
+CREATE TABLE t1(a DATETIME NOT NULL, b DATE NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01', '2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+a	b
+2001-01-01 00:00:00	2001-01-01
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+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 '2001-01-01 00:00:00' AS `a`,'2001-01-01' AS `b` from `test`.`t1` where 1
+DROP TABLE t1;
+CREATE TABLE t1(a DATETIME NOT NULL, b VARCHAR(20) NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01', '2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+a	b
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+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 noticed after reading const tables
+Warnings:
+Note	1003	select '2001-01-01 00:00:00' AS `a`,'2001-01-01' AS `b` from `test`.`t1` where 0
+SELECT * FROM t1 WHERE a='2001-01-01 00:00:00' AND a=b AND b='2001-01-01';
+a	b
+2001-01-01 00:00:00	2001-01-01
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01 00:00:00' AND a=b AND b='2001-01-01';
+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 '2001-01-01 00:00:00' AS `a`,'2001-01-01' AS `b` from `test`.`t1` where 1
+DROP TABLE t1;
+CREATE TABLE t1(a DATETIME NOT NULL, b DATE NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01', '2001-01-01');
+SELECT x.a, y.a, z.a FROM t1 x 
+JOIN t1 y ON x.a=y.a 
+JOIN t1 z ON y.a=z.a 
+WHERE x.a='2001-01-01' AND z.a='2001-01-01 00:00:00';
+a	a	a
+2001-01-01 00:00:00	2001-01-01 00:00:00	2001-01-01 00:00:00
+EXPLAIN EXTENDED SELECT x.a, y.a, z.a FROM t1 x 
+JOIN t1 y ON x.a=y.a 
+JOIN t1 z ON y.a=z.a 
+WHERE x.a='2001-01-01' AND z.a='2001-01-01 00:00:00';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	x	system	NULL	NULL	NULL	NULL	1	100.00	
+1	SIMPLE	y	system	NULL	NULL	NULL	NULL	1	100.00	
+1	SIMPLE	z	system	NULL	NULL	NULL	NULL	1	100.00	
+Warnings:
+Note	1003	select '2001-01-01 00:00:00' AS `a`,'2001-01-01 00:00:00' AS `a`,'2001-01-01 00:00:00' AS `a` from `test`.`t1` `x` join `test`.`t1` `y` join `test`.`t1` `z` where 1
+DROP TABLE t1;
 End of 5.0 tests
 create table t1(a INT, KEY (a));
 INSERT INTO t1 VALUES (1),(2),(3),(4),(5);
@@ -4609,4 +4694,14 @@ HAVING v <= 't'
 ORDER BY pk;
 v
 DROP TABLE t1;
+#
+# Bug#49489 Uninitialized cache led to a wrong result.
+#
+CREATE TABLE t1(c1 DOUBLE(5,4));
+INSERT INTO t1 VALUES (9.1234);
+SELECT * FROM t1 WHERE c1 < 9.12345;
+c1
+9.1234
+DROP TABLE t1;
+# End of test for bug#49489.
 End of 5.1 tests
diff --git a/mysql-test/r/show_check.result b/mysql-test/r/show_check.result
index 091d932a6fc..5c36b70875d 100644
--- a/mysql-test/r/show_check.result
+++ b/mysql-test/r/show_check.result
@@ -1453,4 +1453,10 @@ GRANT PROCESS ON *.* TO test_u@localhost;
 SHOW ENGINE MYISAM MUTEX;
 SHOW ENGINE MYISAM STATUS;
 DROP USER test_u@localhost;
+#
+# Bug #48985: show create table crashes if previous access to the table
+#    was killed
+#
+SHOW CREATE TABLE non_existent;
+ERROR 70100: Query execution was interrupted
 End of 5.1 tests
diff --git a/mysql-test/r/sp-ucs2.result b/mysql-test/r/sp-ucs2.result
index ce6be5b0a65..1c266e38d97 100644
--- a/mysql-test/r/sp-ucs2.result
+++ b/mysql-test/r/sp-ucs2.result
@@ -12,3 +12,29 @@ a
 foo string
 drop function bug17615|
 drop table t3|
+SET NAMES utf8;
+DROP FUNCTION IF EXISTS bug48766;
+CREATE FUNCTION bug48766 ()
+RETURNS ENUM( 'w' ) CHARACTER SET ucs2
+RETURN 0;
+SHOW CREATE FUNCTION bug48766;
+Function	sql_mode	Create Function	character_set_client	collation_connection	Database Collation
+bug48766		CREATE DEFINER=`root`@`localhost` FUNCTION `bug48766`() RETURNS enum('w') CHARSET ucs2
+RETURN 0	utf8	utf8_general_ci	latin1_swedish_ci
+SELECT DTD_IDENTIFIER FROM INFORMATION_SCHEMA.ROUTINES
+WHERE ROUTINE_NAME='bug48766';
+DTD_IDENTIFIER
+enum('w') CHARSET ucs2
+DROP FUNCTION bug48766;
+CREATE FUNCTION bug48766 ()
+RETURNS ENUM('а','б','в','г') CHARACTER SET ucs2
+RETURN 0;
+SHOW CREATE FUNCTION bug48766;
+Function	sql_mode	Create Function	character_set_client	collation_connection	Database Collation
+bug48766		CREATE DEFINER=`root`@`localhost` FUNCTION `bug48766`() RETURNS enum('а','б','в','г') CHARSET ucs2
+RETURN 0	utf8	utf8_general_ci	latin1_swedish_ci
+SELECT DTD_IDENTIFIER FROM INFORMATION_SCHEMA.ROUTINES
+WHERE ROUTINE_NAME='bug48766';
+DTD_IDENTIFIER
+enum('а','б','в','г') CHARSET ucs2
+DROP FUNCTION bug48766;
diff --git a/mysql-test/r/type_year.result b/mysql-test/r/type_year.result
index e52947455c8..56b326327c6 100644
--- a/mysql-test/r/type_year.result
+++ b/mysql-test/r/type_year.result
@@ -46,3 +46,267 @@ a
 2001
 drop table t1;
 End of 5.0 tests
+#
+# Bug #49480: WHERE using YEAR columns returns unexpected results
+#
+CREATE TABLE t2(yy YEAR(2), c2 CHAR(4));
+CREATE TABLE t4(yyyy YEAR(4), c4 CHAR(4));
+INSERT INTO t2 (c2) VALUES (NULL),(1970),(1999),(2000),(2001),(2069);
+INSERT INTO t4 (c4) SELECT c2 FROM t2;
+UPDATE t2 SET yy = c2;
+UPDATE t4 SET yyyy = c4;
+SELECT * FROM t2;
+yy	c2
+NULL	NULL
+70	1970
+99	1999
+00	2000
+01	2001
+69	2069
+SELECT * FROM t4;
+yyyy	c4
+NULL	NULL
+1970	1970
+1999	1999
+2000	2000
+2001	2001
+2069	2069
+# Comparison of YEAR(2) with YEAR(4)
+SELECT * FROM t2, t4 WHERE yy = yyyy;
+yy	c2	yyyy	c4
+70	1970	1970	1970
+99	1999	1999	1999
+00	2000	2000	2000
+01	2001	2001	2001
+69	2069	2069	2069
+SELECT * FROM t2, t4 WHERE yy <=> yyyy;
+yy	c2	yyyy	c4
+NULL	NULL	NULL	NULL
+70	1970	1970	1970
+99	1999	1999	1999
+00	2000	2000	2000
+01	2001	2001	2001
+69	2069	2069	2069
+SELECT * FROM t2, t4 WHERE yy < yyyy;
+yy	c2	yyyy	c4
+70	1970	1999	1999
+70	1970	2000	2000
+99	1999	2000	2000
+70	1970	2001	2001
+99	1999	2001	2001
+00	2000	2001	2001
+70	1970	2069	2069
+99	1999	2069	2069
+00	2000	2069	2069
+01	2001	2069	2069
+SELECT * FROM t2, t4 WHERE yy > yyyy;
+yy	c2	yyyy	c4
+99	1999	1970	1970
+00	2000	1970	1970
+01	2001	1970	1970
+69	2069	1970	1970
+00	2000	1999	1999
+01	2001	1999	1999
+69	2069	1999	1999
+01	2001	2000	2000
+69	2069	2000	2000
+69	2069	2001	2001
+# Comparison of YEAR(2) with YEAR(2)
+SELECT * FROM t2 a, t2 b WHERE a.yy = b.yy;
+yy	c2	yy	c2
+70	1970	70	1970
+99	1999	99	1999
+00	2000	00	2000
+01	2001	01	2001
+69	2069	69	2069
+SELECT * FROM t2 a, t2 b WHERE a.yy <=> b.yy;
+yy	c2	yy	c2
+NULL	NULL	NULL	NULL
+70	1970	70	1970
+99	1999	99	1999
+00	2000	00	2000
+01	2001	01	2001
+69	2069	69	2069
+SELECT * FROM t2 a, t2 b WHERE a.yy < b.yy;
+yy	c2	yy	c2
+70	1970	99	1999
+70	1970	00	2000
+99	1999	00	2000
+70	1970	01	2001
+99	1999	01	2001
+00	2000	01	2001
+70	1970	69	2069
+99	1999	69	2069
+00	2000	69	2069
+01	2001	69	2069
+# Comparison of YEAR(4) with YEAR(4)
+SELECT * FROM t4 a, t4 b WHERE a.yyyy = b.yyyy;
+yyyy	c4	yyyy	c4
+1970	1970	1970	1970
+1999	1999	1999	1999
+2000	2000	2000	2000
+2001	2001	2001	2001
+2069	2069	2069	2069
+SELECT * FROM t4 a, t4 b WHERE a.yyyy <=> b.yyyy;
+yyyy	c4	yyyy	c4
+NULL	NULL	NULL	NULL
+1970	1970	1970	1970
+1999	1999	1999	1999
+2000	2000	2000	2000
+2001	2001	2001	2001
+2069	2069	2069	2069
+SELECT * FROM t4 a, t4 b WHERE a.yyyy < b.yyyy;
+yyyy	c4	yyyy	c4
+1970	1970	1999	1999
+1970	1970	2000	2000
+1999	1999	2000	2000
+1970	1970	2001	2001
+1999	1999	2001	2001
+2000	2000	2001	2001
+1970	1970	2069	2069
+1999	1999	2069	2069
+2000	2000	2069	2069
+2001	2001	2069	2069
+# Comparison with constants:
+SELECT * FROM t2 WHERE yy = NULL;
+yy	c2
+SELECT * FROM t4 WHERE yyyy = NULL;
+yyyy	c4
+SELECT * FROM t2 WHERE yy <=> NULL;
+yy	c2
+NULL	NULL
+SELECT * FROM t4 WHERE yyyy <=> NULL;
+yyyy	c4
+NULL	NULL
+SELECT * FROM t2 WHERE yy < NULL;
+yy	c2
+SELECT * FROM t2 WHERE yy > NULL;
+yy	c2
+SELECT * FROM t2 WHERE yy = NOW();
+yy	c2
+SELECT * FROM t4 WHERE yyyy = NOW();
+yyyy	c4
+SELECT * FROM t2 WHERE yy = 99;
+yy	c2
+99	1999
+SELECT * FROM t2 WHERE 99 = yy;
+yy	c2
+99	1999
+SELECT * FROM t4 WHERE yyyy = 99;
+yyyy	c4
+1999	1999
+SELECT * FROM t2 WHERE yy = 'test';
+yy	c2
+00	2000
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'test'
+SELECT * FROM t4 WHERE yyyy = 'test';
+yyyy	c4
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'test'
+SELECT * FROM t2 WHERE yy = '1999';
+yy	c2
+99	1999
+SELECT * FROM t4 WHERE yyyy = '1999';
+yyyy	c4
+1999	1999
+SELECT * FROM t2 WHERE yy = 1999;
+yy	c2
+99	1999
+SELECT * FROM t4 WHERE yyyy = 1999;
+yyyy	c4
+1999	1999
+SELECT * FROM t2 WHERE yy = 1999.1;
+yy	c2
+99	1999
+SELECT * FROM t4 WHERE yyyy = 1999.1;
+yyyy	c4
+1999	1999
+SELECT * FROM t2 WHERE yy = 1998.9;
+yy	c2
+99	1999
+SELECT * FROM t4 WHERE yyyy = 1998.9;
+yyyy	c4
+1999	1999
+# Coverage tests for YEAR with zero/2000 constants:
+SELECT * FROM t2 WHERE yy = 0;
+yy	c2
+00	2000
+SELECT * FROM t2 WHERE yy = '0';
+yy	c2
+00	2000
+SELECT * FROM t2 WHERE yy = '0000';
+yy	c2
+00	2000
+SELECT * FROM t2 WHERE yy = '2000';
+yy	c2
+00	2000
+SELECT * FROM t2 WHERE yy = 2000;
+yy	c2
+00	2000
+SELECT * FROM t4 WHERE yyyy = 0;
+yyyy	c4
+SELECT * FROM t4 WHERE yyyy = '0';
+yyyy	c4
+2000	2000
+SELECT * FROM t4 WHERE yyyy = '0000';
+yyyy	c4
+SELECT * FROM t4 WHERE yyyy = '2000';
+yyyy	c4
+2000	2000
+SELECT * FROM t4 WHERE yyyy = 2000;
+yyyy	c4
+2000	2000
+# Comparison with constants those are out of YEAR range
+# (coverage test for backward compatibility)
+SELECT COUNT(yy) FROM t2;
+COUNT(yy)
+5
+SELECT COUNT(yyyy) FROM t4;
+COUNT(yyyy)
+5
+SELECT COUNT(*) FROM t2 WHERE yy = -1;
+COUNT(*)
+0
+SELECT COUNT(*) FROM t4 WHERE yyyy > -1;
+COUNT(*)
+5
+SELECT COUNT(*) FROM t2 WHERE yy > -1000000000000000000;
+COUNT(*)
+5
+SELECT COUNT(*) FROM t4 WHERE yyyy > -1000000000000000000;
+COUNT(*)
+5
+SELECT COUNT(*) FROM t2 WHERE yy < 2156;
+COUNT(*)
+5
+SELECT COUNT(*) FROM t4 WHERE yyyy < 2156;
+COUNT(*)
+5
+SELECT COUNT(*) FROM t2 WHERE yy < 1000000000000000000;
+COUNT(*)
+5
+SELECT COUNT(*) FROM t4 WHERE yyyy < 1000000000000000000;
+COUNT(*)
+5
+SELECT * FROM t2 WHERE yy < 123;
+yy	c2
+70	1970
+99	1999
+00	2000
+01	2001
+69	2069
+SELECT * FROM t2 WHERE yy > 123;
+yy	c2
+SELECT * FROM t4 WHERE yyyy < 123;
+yyyy	c4
+SELECT * FROM t4 WHERE yyyy > 123;
+yyyy	c4
+1970	1970
+1999	1999
+2000	2000
+2001	2001
+2069	2069
+DROP TABLE t2, t4;
+#
+End of 5.1 tests
diff --git a/mysql-test/suite/binlog/r/binlog_index.result b/mysql-test/suite/binlog/r/binlog_index.result
index 69d877c5adc..52d698e9f96 100644
--- a/mysql-test/suite/binlog/r/binlog_index.result
+++ b/mysql-test/suite/binlog/r/binlog_index.result
@@ -1,3 +1,8 @@
+call mtr.add_suppression('Attempting backtrace');
+call mtr.add_suppression('MSYQL_BIN_LOG::purge_logs failed to process registered files that would be purged.');
+call mtr.add_suppression('MSYQL_BIN_LOG::open failed to sync the index file');
+call mtr.add_suppression('Turning logging off for the whole duration of the MySQL server process.');
+call mtr.add_suppression('MSYQL_BIN_LOG::purge_logs failed to clean registers before purging logs.');
 flush logs;
 flush logs;
 flush logs;
@@ -21,7 +26,6 @@ flush logs;
 *** must be a warning master-bin.000001 was not found ***
 Warnings:
 Warning	1612	Being purged log master-bin.000001 was not found
-Warning	1612	Being purged log master-bin.000001 was not found
 *** must show one record, of the active binlog, left in the index file after PURGE ***
 show binary logs;
 Log_name	File_size
@@ -37,4 +41,111 @@ Level	Code	Message
 Warning	1377	a problem with deleting master-bin.000001; consider examining correspondence of your binlog index file to the actual binlog files
 Error	1377	Fatal error during log purge
 reset master;
+# crash_purge_before_update_index
+flush logs;
+SET SESSION debug="+d,crash_purge_before_update_index";
+purge binary logs TO 'master-bin.000002';
+ERROR HY000: Lost connection to MySQL server during query
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000001
+master-bin.000002
+master-bin.000003
+
+# crash_purge_non_critical_after_update_index
+flush logs;
+SET SESSION debug="+d,crash_purge_non_critical_after_update_index";
+purge binary logs TO 'master-bin.000004';
+ERROR HY000: Lost connection to MySQL server during query
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000004
+master-bin.000005
+
+# crash_purge_critical_after_update_index
+flush logs;
+SET SESSION debug="+d,crash_purge_critical_after_update_index";
+purge binary logs TO 'master-bin.000006';
+ERROR HY000: Lost connection to MySQL server during query
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000006
+master-bin.000007
+
+# crash_create_non_critical_before_update_index
+SET SESSION debug="+d,crash_create_non_critical_before_update_index";
+flush logs;
+ERROR HY000: Lost connection to MySQL server during query
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000006
+master-bin.000007
+master-bin.000008
+
+# crash_create_critical_before_update_index
+SET SESSION debug="+d,crash_create_critical_before_update_index";
+flush logs;
+ERROR HY000: Lost connection to MySQL server during query
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000006
+master-bin.000007
+master-bin.000008
+master-bin.000009
+
+# crash_create_after_update_index
+SET SESSION debug="+d,crash_create_after_update_index";
+flush logs;
+ERROR HY000: Lost connection to MySQL server during query
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000006
+master-bin.000007
+master-bin.000008
+master-bin.000009
+master-bin.000010
+master-bin.000011
+
+#
+# This should put the server in unsafe state and stop
+# accepting any command. If we inject a fault at this
+# point and continue the execution the server crashes.
+# Besides the flush command does not report an error.
+#
+# fault_injection_registering_index
+SET SESSION debug="+d,fault_injection_registering_index";
+flush logs;
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000006
+master-bin.000007
+master-bin.000008
+master-bin.000009
+master-bin.000010
+master-bin.000011
+master-bin.000012
+
+# fault_injection_updating_index
+SET SESSION debug="+d,fault_injection_updating_index";
+flush logs;
+SET @index=LOAD_FILE('MYSQLTEST_VARDIR/mysqld.1/data//master-bin.index');
+SELECT @index;
+@index
+master-bin.000006
+master-bin.000007
+master-bin.000008
+master-bin.000009
+master-bin.000010
+master-bin.000011
+master-bin.000012
+master-bin.000013
+
+SET SESSION debug="";
 End of tests
diff --git a/mysql-test/suite/binlog/t/binlog_index.test b/mysql-test/suite/binlog/t/binlog_index.test
index 13287465b88..9d4a49602a6 100644
--- a/mysql-test/suite/binlog/t/binlog_index.test
+++ b/mysql-test/suite/binlog/t/binlog_index.test
@@ -3,6 +3,18 @@
 #
 source include/have_log_bin.inc;
 source include/not_embedded.inc;
+# Don't test this under valgrind, memory leaks will occur
+--source include/not_valgrind.inc
+source include/have_debug.inc;
+call mtr.add_suppression('Attempting backtrace');
+call mtr.add_suppression('MSYQL_BIN_LOG::purge_logs failed to process registered files that would be purged.');
+call mtr.add_suppression('MSYQL_BIN_LOG::open failed to sync the index file');
+call mtr.add_suppression('Turning logging off for the whole duration of the MySQL server process.');
+call mtr.add_suppression('MSYQL_BIN_LOG::purge_logs failed to clean registers before purging logs.');
+let $old=`select @@debug`;
+
+let $MYSQLD_DATADIR= `select @@datadir`;
+let $INDEX=$MYSQLD_DATADIR/master-bin.index;
 
 #
 # testing purge binary logs TO
@@ -13,7 +25,6 @@ flush logs;
 flush logs;
 
 source include/show_binary_logs.inc;
-let $MYSQLD_DATADIR= `select @@datadir`;
 remove_file $MYSQLD_DATADIR/master-bin.000001;
 
 # there must be a warning with file names
@@ -66,4 +77,159 @@ rmdir $MYSQLD_DATADIR/master-bin.000001;
 --disable_warnings
 reset master;
 --enable_warnings
+
+--echo # crash_purge_before_update_index
+flush logs;
+
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+SET SESSION debug="+d,crash_purge_before_update_index";
+--error 2013
+purge binary logs TO 'master-bin.000002';
+
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+
+file_exists $MYSQLD_DATADIR/master-bin.000001;
+file_exists $MYSQLD_DATADIR/master-bin.000002;
+file_exists $MYSQLD_DATADIR/master-bin.000003;
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo # crash_purge_non_critical_after_update_index
+flush logs;
+
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+SET SESSION debug="+d,crash_purge_non_critical_after_update_index";
+--error 2013
+purge binary logs TO 'master-bin.000004';
+
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000001;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000002;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000003;
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo # crash_purge_critical_after_update_index
+flush logs;
+
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+SET SESSION debug="+d,crash_purge_critical_after_update_index";
+--error 2013
+purge binary logs TO 'master-bin.000006';
+
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000004;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000005;
+file_exists $MYSQLD_DATADIR/master-bin.000006;
+file_exists $MYSQLD_DATADIR/master-bin.000007;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000008;
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo # crash_create_non_critical_before_update_index
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+SET SESSION debug="+d,crash_create_non_critical_before_update_index";
+--error 2013
+flush logs;
+
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+
+file_exists $MYSQLD_DATADIR/master-bin.000008;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000009;
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo # crash_create_critical_before_update_index
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+SET SESSION debug="+d,crash_create_critical_before_update_index";
+--error 2013
+flush logs;
+
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+
+file_exists $MYSQLD_DATADIR/master-bin.000009;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000010;
+--error 1
+file_exists $MYSQLD_DATADIR/master-bin.000011;
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo # crash_create_after_update_index
+--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+SET SESSION debug="+d,crash_create_after_update_index";
+--error 2013
+flush logs;
+
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+
+file_exists $MYSQLD_DATADIR/master-bin.000010;
+file_exists $MYSQLD_DATADIR/master-bin.000011;
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo #
+--echo # This should put the server in unsafe state and stop
+--echo # accepting any command. If we inject a fault at this
+--echo # point and continue the execution the server crashes.
+--echo # Besides the flush command does not report an error.
+--echo #
+
+--echo # fault_injection_registering_index
+SET SESSION debug="+d,fault_injection_registering_index";
+flush logs;
+--source include/restart_mysqld.inc
+
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+--echo # fault_injection_updating_index
+SET SESSION debug="+d,fault_injection_updating_index";
+flush logs;
+--source include/restart_mysqld.inc
+
+--chmod 0644 $INDEX
+-- replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+-- eval SET @index=LOAD_FILE('$index')
+-- replace_regex /\.[\\\/]master/master/
+SELECT @index;
+
+eval SET SESSION debug="$old";
+
 --echo End of tests
diff --git a/mysql-test/suite/ibmdb2i/r/ibmdb2i_bug_49329.result b/mysql-test/suite/ibmdb2i/r/ibmdb2i_bug_49329.result
new file mode 100644
index 00000000000..d5bfc2579fd
--- /dev/null
+++ b/mysql-test/suite/ibmdb2i/r/ibmdb2i_bug_49329.result
@@ -0,0 +1,9 @@
+create table ABC (i int) engine=ibmdb2i;
+insert into ABC values(1);
+create table abc (i int) engine=ibmdb2i;
+insert into abc values (2);
+select * from ABC;
+i
+1
+drop table ABC;
+drop table abc;
diff --git a/mysql-test/suite/ibmdb2i/t/ibmdb2i_bug_49329.test b/mysql-test/suite/ibmdb2i/t/ibmdb2i_bug_49329.test
new file mode 100644
index 00000000000..615df284d8f
--- /dev/null
+++ b/mysql-test/suite/ibmdb2i/t/ibmdb2i_bug_49329.test
@@ -0,0 +1,10 @@
+source suite/ibmdb2i/include/have_ibmdb2i.inc;

+source include/have_case_sensitive_file_system.inc;

+

+create table ABC (i int) engine=ibmdb2i;

+insert into ABC values(1);

+create table abc (i int) engine=ibmdb2i;

+insert into abc values (2);

+select * from ABC;

+drop table ABC;

+drop table abc;

diff --git a/mysql-test/suite/rpl/r/rpl_do_grant.result b/mysql-test/suite/rpl/r/rpl_do_grant.result
index 0913b1afdbf..65c60acc651 100644
--- a/mysql-test/suite/rpl/r/rpl_do_grant.result
+++ b/mysql-test/suite/rpl/r/rpl_do_grant.result
@@ -169,4 +169,77 @@ DROP USER 'create_rout_db'@'localhost';
 call mtr.add_suppression("Slave: Operation DROP USER failed for 'create_rout_db'@'localhost' Error_code: 1396");
 USE mtr;
 call mtr.add_suppression("Slave: Operation DROP USER failed for 'create_rout_db'@'localhost' Error_code: 1396");
+######## BUG#49119 #######
+### i) test case from the 'how to repeat section'
+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+CREATE TABLE t1(c1 INT);
+CREATE PROCEDURE p1() SELECT * FROM t1 |
+REVOKE EXECUTE ON PROCEDURE p1 FROM 'root'@'localhost';
+ERROR 42000: There is no such grant defined for user 'root' on host 'localhost' on routine 'p1'
+DROP TABLE t1;
+DROP PROCEDURE p1;
+### ii) Test case in which REVOKE partially succeeds
+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+CREATE TABLE t1(c1 INT);
+CREATE PROCEDURE p1() SELECT * FROM t1 |
+CREATE USER 'user49119'@'localhost';
+GRANT EXECUTE ON PROCEDURE p1 TO 'user49119'@'localhost';
+##############################################################
+### Showing grants for both users: root and user49119 (master)
+SHOW GRANTS FOR 'user49119'@'localhost';
+Grants for user49119@localhost
+GRANT USAGE ON *.* TO 'user49119'@'localhost'
+GRANT EXECUTE ON PROCEDURE `test`.`p1` TO 'user49119'@'localhost'
+SHOW GRANTS FOR CURRENT_USER;
+Grants for root@localhost
+GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
+##############################################################
+##############################################################
+### Showing grants for both users: root and user49119 (master)
+SHOW GRANTS FOR 'user49119'@'localhost';
+Grants for user49119@localhost
+GRANT USAGE ON *.* TO 'user49119'@'localhost'
+GRANT EXECUTE ON PROCEDURE `test`.`p1` TO 'user49119'@'localhost'
+SHOW GRANTS FOR CURRENT_USER;
+Grants for root@localhost
+GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
+##############################################################
+## This statement will make the revoke fail because root has no
+## execute grant. However, it will still revoke the grant for
+## user49119.
+REVOKE EXECUTE ON PROCEDURE p1 FROM 'user49119'@'localhost', 'root'@'localhost';
+ERROR 42000: There is no such grant defined for user 'root' on host 'localhost' on routine 'p1'
+##############################################################
+### Showing grants for both users: root and user49119 (master)
+### after revoke statement failure
+SHOW GRANTS FOR 'user49119'@'localhost';
+Grants for user49119@localhost
+GRANT USAGE ON *.* TO 'user49119'@'localhost'
+SHOW GRANTS FOR CURRENT_USER;
+Grants for root@localhost
+GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
+##############################################################
+#############################################################
+### Showing grants for both users: root and user49119 (slave)
+### after revoke statement failure (should match 
+SHOW GRANTS FOR 'user49119'@'localhost';
+Grants for user49119@localhost
+GRANT USAGE ON *.* TO 'user49119'@'localhost'
+SHOW GRANTS FOR CURRENT_USER;
+Grants for root@localhost
+GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
+##############################################################
+DROP TABLE t1;
+DROP PROCEDURE p1;
+DROP USER 'user49119'@'localhost';
 "End of test"
diff --git a/mysql-test/suite/rpl/r/rpl_killed_ddl.result b/mysql-test/suite/rpl/r/rpl_killed_ddl.result
index a15b3c30766..c3cde16b9d2 100644
--- a/mysql-test/suite/rpl/r/rpl_killed_ddl.result
+++ b/mysql-test/suite/rpl/r/rpl_killed_ddl.result
@@ -63,7 +63,7 @@ source include/diff_master_slave.inc;
 DROP DATABASE d1;
 source include/kill_query.inc;
 source include/diff_master_slave.inc;
-DROP DATABASE d2;
+DROP DATABASE IF EXISTS d2;
 source include/kill_query.inc;
 source include/diff_master_slave.inc;
 CREATE EVENT e2
@@ -115,6 +115,7 @@ source include/diff_master_slave.inc;
 DROP INDEX i1 on t1;
 source include/kill_query.inc;
 source include/diff_master_slave.inc;
+CREATE TABLE IF NOT EXISTS t4 (a int);
 CREATE TRIGGER tr2 BEFORE INSERT ON t4
 FOR EACH ROW BEGIN
 DELETE FROM t1 WHERE a=NEW.a;
diff --git a/mysql-test/suite/rpl/t/rpl_do_grant.test b/mysql-test/suite/rpl/t/rpl_do_grant.test
index a13adf28b95..d6a06f43d18 100644
--- a/mysql-test/suite/rpl/t/rpl_do_grant.test
+++ b/mysql-test/suite/rpl/t/rpl_do_grant.test
@@ -216,4 +216,104 @@ connection slave;
 USE mtr;
 call mtr.add_suppression("Slave: Operation DROP USER failed for 'create_rout_db'@'localhost' Error_code: 1396");
 
+# BUG#49119: Master crashes when executing 'REVOKE ... ON
+# {PROCEDURE|FUNCTION} FROM ...'
+# 
+# The tests are divided into two test cases:
+#
+#  i) a test case that mimics the one in the bug report.
+#
+#     - We show that, despite the fact, that a revoke command fails
+#       when binlogging is active, the master will not hit an
+#       assertion.
+#
+# ii) a test case that partially succeeds on the master will also
+#      partially succeed on the slave.
+#
+#     - The revoke statement that partially succeeds tries to revoke
+#       an EXECUTE grant for two users, and only one of the user has
+#       the specific grant. This will cause mysql to drop one of the
+#       grants and report error for the statement. The slave should
+#       also drop the grants that the master succeed and the SQL
+#       thread should not stop on statement failure.
+
+-- echo ######## BUG#49119 #######
+-- echo ### i) test case from the 'how to repeat section'
+-- source include/master-slave-reset.inc
+-- connection master
+
+CREATE TABLE t1(c1 INT);
+DELIMITER |;
+CREATE PROCEDURE p1() SELECT * FROM t1 |
+DELIMITER ;|
+-- error ER_NONEXISTING_PROC_GRANT
+REVOKE EXECUTE ON PROCEDURE p1 FROM 'root'@'localhost';
+
+-- sync_slave_with_master
+
+-- connection master
+DROP TABLE t1;
+DROP PROCEDURE p1;
+
+-- sync_slave_with_master
+
+-- echo ### ii) Test case in which REVOKE partially succeeds
+
+-- connection master
+-- source include/master-slave-reset.inc
+-- connection master
+
+CREATE TABLE t1(c1 INT);
+DELIMITER |;
+CREATE PROCEDURE p1() SELECT * FROM t1 |
+DELIMITER ;|
+
+CREATE USER 'user49119'@'localhost';
+GRANT EXECUTE ON PROCEDURE p1 TO 'user49119'@'localhost';
+
+-- echo ##############################################################
+-- echo ### Showing grants for both users: root and user49119 (master)
+SHOW GRANTS FOR 'user49119'@'localhost';
+SHOW GRANTS FOR CURRENT_USER;
+-- echo ##############################################################
+
+-- sync_slave_with_master
+
+-- echo ##############################################################
+-- echo ### Showing grants for both users: root and user49119 (master)
+SHOW GRANTS FOR 'user49119'@'localhost';
+SHOW GRANTS FOR CURRENT_USER;
+-- echo ##############################################################
+
+-- connection master
+
+-- echo ## This statement will make the revoke fail because root has no
+-- echo ## execute grant. However, it will still revoke the grant for
+-- echo ## user49119.
+-- error ER_NONEXISTING_PROC_GRANT
+REVOKE EXECUTE ON PROCEDURE p1 FROM 'user49119'@'localhost', 'root'@'localhost';
+
+-- echo ##############################################################
+-- echo ### Showing grants for both users: root and user49119 (master)
+-- echo ### after revoke statement failure
+SHOW GRANTS FOR 'user49119'@'localhost';
+SHOW GRANTS FOR CURRENT_USER;
+-- echo ##############################################################
+
+-- sync_slave_with_master
+
+-- echo #############################################################
+-- echo ### Showing grants for both users: root and user49119 (slave)
+-- echo ### after revoke statement failure (should match 
+SHOW GRANTS FOR 'user49119'@'localhost';
+SHOW GRANTS FOR CURRENT_USER;
+-- echo ##############################################################
+
+-- connection master
+DROP TABLE t1;
+DROP PROCEDURE p1;
+DROP USER 'user49119'@'localhost';
+
+-- sync_slave_with_master
+
 --echo "End of test"
diff --git a/mysql-test/suite/rpl/t/rpl_killed_ddl.test b/mysql-test/suite/rpl/t/rpl_killed_ddl.test
index 26bd4957279..0f2fe5b60fb 100644
--- a/mysql-test/suite/rpl/t/rpl_killed_ddl.test
+++ b/mysql-test/suite/rpl/t/rpl_killed_ddl.test
@@ -153,7 +153,7 @@ source include/kill_query_and_diff_master_slave.inc;
 send DROP DATABASE d1;
 source include/kill_query_and_diff_master_slave.inc;
 
-send DROP DATABASE d2;
+send DROP DATABASE IF EXISTS d2;
 source include/kill_query_and_diff_master_slave.inc;
 
 ######## EVENT ########
@@ -226,7 +226,7 @@ source include/kill_query_and_diff_master_slave.inc;
 send DROP PROCEDURE p1;
 source include/kill_query_and_diff_master_slave.inc;
 
-# Temporarily disabled, see comment above for DROP FUNCTION IF EXISTS
+# Temporarily disabled because of bug#43353, see comment above for DROP FUNCTION IF EXISTS
 #send DROP PROCEDURE IF EXISTS p2;
 #source include/kill_query_and_diff_master_slave.inc;
 
@@ -277,6 +277,11 @@ source include/kill_query_and_diff_master_slave.inc;
 
 ######## TRIGGER ########
 
+# Make sure table t4 exists
+connection master;
+CREATE TABLE IF NOT EXISTS t4 (a int);
+connection master1;
+
 let $diff_statement= SHOW TRIGGERS LIKE 'v%';
 
 DELIMITER //;
diff --git a/mysql-test/t/ctype_utf8.test b/mysql-test/t/ctype_utf8.test
index bb3eaa84391..d9acce41ffc 100644
--- a/mysql-test/t/ctype_utf8.test
+++ b/mysql-test/t/ctype_utf8.test
@@ -1411,6 +1411,16 @@ select hex(_utf8 B'001111111111');
 --error ER_INVALID_CHARACTER_STRING
 select (_utf8 X'616263FF');
 
+--echo #
+--echo # Bug#44131 Binary-mode "order by" returns records in incorrect order for UTF-8 strings
+--echo #
+CREATE TABLE t1 (id int not null primary key, name varchar(10)) character set utf8;
+INSERT INTO t1 VALUES
+(2,'一二三01'),(3,'一二三09'),(4,'一二三02'),(5,'一二三08'),
+(6,'一二三11'),(7,'一二三91'),(8,'一二三21'),(9,'一二三81');
+SELECT * FROM t1 ORDER BY BINARY(name);
+DROP TABLE t1;
+
 #
 # Bug #36772: When using UTF8, CONVERT with GROUP BY returns truncated results
 #
diff --git a/mysql-test/t/disabled.def b/mysql-test/t/disabled.def
index 780273d032f..3d9dc72ee45 100644
--- a/mysql-test/t/disabled.def
+++ b/mysql-test/t/disabled.def
@@ -10,7 +10,6 @@
 #
 ##############################################################################
 kill                     : Bug#37780 2008-12-03 HHunger need some changes to be robust enough for pushbuild.
-query_cache_28249        : Bug#43861 2009-03-25 main.query_cache_28249 fails sporadically
-rpl_killed_ddl           : Bug#45520: rpl_killed_ddl fails sporadically in pb2
+query_cache_28249        : Bug#43861 2009-03-25 main.query_cache_28249 fails sporadicallyr
 innodb-autoinc           : Bug#49267 2009-12-02 test fails on windows because of different case mode
 innodb                   : Bug#49396 2009-12-03 test fails in embedded mode
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index 032c9ade643..a570e70d81d 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -1320,6 +1320,39 @@ explain select 1 as a from t1,(select encode(f1,f1) as b from t1) a;
 drop table t1;
 
 
+--echo #
+--echo # Bug#49141: Encode function is significantly slower in 5.1 compared to 5.0
+--echo #
+
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+
+CREATE TABLE t1 (a VARCHAR(20), b INT);
+CREATE TABLE t2 (a VARCHAR(20), b INT);
+
+INSERT INTO t1 VALUES ('ABC', 1);
+INSERT INTO t2 VALUES ('ABC', 1);
+
+SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
+  FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
+
+SELECT DECODE((SELECT ENCODE('secret', 'ABC') FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
+  FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
+
+SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), 'ABC')
+  FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
+
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+
+INSERT INTO t1 VALUES ('EDF', 3), ('BCD', 2), ('ABC', 1);
+INSERT INTO t2 VALUES ('EDF', 3), ('BCD', 2), ('ABC', 1);
+
+SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b LIMIT 1), t2.a)
+  FROM t2 WHERE t2.b = 1 GROUP BY t2.b;
+
+DROP TABLE t1, t2;
 
 --echo Start of 5.4 tests
 #
diff --git a/mysql-test/t/mysql_upgrade.test b/mysql-test/t/mysql_upgrade.test
index 8bcbe064b68..3ed1526f7ca 100644
--- a/mysql-test/t/mysql_upgrade.test
+++ b/mysql-test/t/mysql_upgrade.test
@@ -90,6 +90,24 @@ set GLOBAL sql_mode='STRICT_ALL_TABLES,ANSI_QUOTES,NO_ZERO_DATE';
 --exec $MYSQL_UPGRADE --skip-verbose --force 2>&1
 eval set GLOBAL sql_mode=default;
 
+--echo #
+--echo # Bug #41569 mysql_upgrade (ver 5.1) add 3 fields to mysql.proc table 
+--echo # but does not set values.
+--echo #
+
+# Create a stored procedure and set the fields in question to null. 
+# When running mysql_upgrade, a warning should be written.
+
+CREATE PROCEDURE testproc() BEGIN END;
+UPDATE mysql.proc SET character_set_client = NULL WHERE name LIKE 'testproc';
+UPDATE mysql.proc SET collation_connection = NULL WHERE name LIKE 'testproc';
+UPDATE mysql.proc SET db_collation = NULL WHERE name LIKE 'testproc';
+--exec $MYSQL_UPGRADE --skip-verbose --force 2> $MYSQLTEST_VARDIR/tmp/41569.txt
+CALL testproc();
+DROP PROCEDURE testproc;
+--cat_file $MYSQLTEST_VARDIR/tmp/41569.txt
+--remove_file $MYSQLTEST_VARDIR/tmp/41569.txt
+
 #
 # Test the --upgrade-system-tables option
 #
diff --git a/mysql-test/t/order_by.test b/mysql-test/t/order_by.test
index 0b42caa8703..36b6015c5d8 100644
--- a/mysql-test/t/order_by.test
+++ b/mysql-test/t/order_by.test
@@ -886,6 +886,15 @@ SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 --echo # Must return 1 row
 SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 
+# part 2 of the problem : DESC test cases
+--echo # Must use ref-or-null on the a_c index
+--replace_column 1 x 2 x 3 x 6 x 7 x 8 x 9 x 10 x
+EXPLAIN
+SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c DESC;
+--echo # Must return 1 row
+SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c DESC;
+
+
 DROP TABLE t1;
 
 
diff --git a/mysql-test/t/ps.test b/mysql-test/t/ps.test
index 844be582290..abb6b7c81f4 100644
--- a/mysql-test/t/ps.test
+++ b/mysql-test/t/ps.test
@@ -1991,6 +1991,29 @@ select @arg;
 execute stmt using @arg;
 deallocate prepare stmt;
 
+--echo #
+--echo # Bug#48508: Crash on prepared statement re-execution.
+--echo #
+create table t1(b int);
+insert into t1 values (0);
+create view v1 AS select 1 as a from t1 where b;
+prepare stmt from "select * from v1 where a";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+drop table t1;
+drop view v1;
+
+create table t1(a bigint);
+create table t2(b tinyint);
+insert into t2 values (null);
+prepare stmt from "select 1 from t1 join  t2 on a xor b where b > 1  and a =1";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+drop table t1,t2;
+--echo #
+
 --echo End of 5.0 tests.
 
 #
@@ -3009,6 +3032,23 @@ execute stmt;
 drop table t1;
 deallocate prepare stmt;
 
+--echo #
+--echo # Bug#49141: Encode function is significantly slower in 5.1 compared to 5.0
+--echo #
+
+prepare encode from "select encode(?, ?) into @ciphertext";
+prepare decode from "select decode(?, ?) into @plaintext";
+set @str="abc", @key="cba";
+execute encode using @str, @key;
+execute decode using @ciphertext, @key;
+select @plaintext;
+set @str="bcd", @key="dcb";
+execute encode using @str, @key;
+execute decode using @ciphertext, @key;
+select @plaintext;
+deallocate prepare encode;
+deallocate prepare decode;
+
 ###########################################################################
 
 --echo 
diff --git a/mysql-test/t/select.test b/mysql-test/t/select.test
index ac65e5cbaf5..61a694599ed 100644
--- a/mysql-test/t/select.test
+++ b/mysql-test/t/select.test
@@ -3786,6 +3786,56 @@ SELECT 1 FROM t2 JOIN t1 ON 1=1
 DROP TABLE t1,t2;
 
 
+--echo #
+--echo # Bug #49199: Optimizer handles incorrectly: 
+--echo # field='const1' AND field='const2' in some cases
+--echo
+CREATE TABLE t1(a DATETIME NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+DROP TABLE t1;
+
+CREATE TABLE t1(a DATE NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+DROP TABLE t1;
+
+CREATE TABLE t1(a TIMESTAMP NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00';
+DROP TABLE t1;
+
+CREATE TABLE t1(a DATETIME NOT NULL, b DATE NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01', '2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+DROP TABLE t1;
+
+CREATE TABLE t1(a DATETIME NOT NULL, b VARCHAR(20) NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01', '2001-01-01');
+SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00';
+
+SELECT * FROM t1 WHERE a='2001-01-01 00:00:00' AND a=b AND b='2001-01-01';
+EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01 00:00:00' AND a=b AND b='2001-01-01';
+DROP TABLE t1;
+
+CREATE TABLE t1(a DATETIME NOT NULL, b DATE NOT NULL);
+INSERT INTO t1 VALUES('2001-01-01', '2001-01-01');
+SELECT x.a, y.a, z.a FROM t1 x 
+  JOIN t1 y ON x.a=y.a 
+  JOIN t1 z ON y.a=z.a 
+  WHERE x.a='2001-01-01' AND z.a='2001-01-01 00:00:00';
+EXPLAIN EXTENDED SELECT x.a, y.a, z.a FROM t1 x 
+  JOIN t1 y ON x.a=y.a 
+  JOIN t1 z ON y.a=z.a 
+  WHERE x.a='2001-01-01' AND z.a='2001-01-01 00:00:00';
+DROP TABLE t1;
+
+
 --echo End of 5.0 tests
 
 #
@@ -3964,4 +4014,13 @@ ORDER BY pk;
 
 DROP TABLE t1;
 
+--echo #
+--echo # Bug#49489 Uninitialized cache led to a wrong result.
+--echo #
+CREATE TABLE t1(c1 DOUBLE(5,4));
+INSERT INTO t1 VALUES (9.1234);
+SELECT * FROM t1 WHERE c1 < 9.12345;
+DROP TABLE t1;
+--echo # End of test for bug#49489.
+
 --echo End of 5.1 tests
diff --git a/mysql-test/t/show_check.test b/mysql-test/t/show_check.test
index 0e4af16dd1f..092cf7f1f7c 100644
--- a/mysql-test/t/show_check.test
+++ b/mysql-test/t/show_check.test
@@ -1206,6 +1206,28 @@ connection default;
 DROP USER test_u@localhost;
 
 
+--echo #
+--echo # Bug #48985: show create table crashes if previous access to the table
+--echo #    was killed
+--echo #
+
+connect(con1,localhost,root,,);
+CONNECTION con1;
+LET $ID= `SELECT connection_id()`;
+
+CONNECTION default;
+--disable_query_log
+eval KILL QUERY $ID;
+--enable_query_log
+
+CONNECTION con1;
+--error ER_QUERY_INTERRUPTED
+SHOW CREATE TABLE non_existent;
+
+CONNECTION default;
+DISCONNECT con1;
+
+
 --echo End of 5.1 tests
 
 # Wait till all disconnects are completed
diff --git a/mysql-test/t/sp-ucs2.test b/mysql-test/t/sp-ucs2.test
index 7dd88b04871..7d6b62dfea0 100644
--- a/mysql-test/t/sp-ucs2.test
+++ b/mysql-test/t/sp-ucs2.test
@@ -26,3 +26,32 @@ drop table t3|
 
 
 delimiter ;|
+
+#
+# Bug#48766 SHOW CREATE FUNCTION returns extra data in return clause
+#
+SET NAMES utf8;
+--disable_warnings
+DROP FUNCTION IF EXISTS bug48766;
+--enable_warnings
+#
+# Test that Latin letters are not prepended with extra '\0'.
+#
+CREATE FUNCTION bug48766 ()
+  RETURNS ENUM( 'w' ) CHARACTER SET ucs2
+  RETURN 0;
+SHOW CREATE FUNCTION bug48766;
+SELECT DTD_IDENTIFIER FROM INFORMATION_SCHEMA.ROUTINES
+WHERE ROUTINE_NAME='bug48766';
+DROP FUNCTION bug48766;
+#
+# Test non-Latin characters
+#
+CREATE FUNCTION bug48766 ()
+  RETURNS ENUM('а','б','в','г') CHARACTER SET ucs2
+  RETURN 0;
+SHOW CREATE FUNCTION bug48766;
+SELECT DTD_IDENTIFIER FROM INFORMATION_SCHEMA.ROUTINES
+WHERE ROUTINE_NAME='bug48766';
+
+DROP FUNCTION bug48766;
diff --git a/mysql-test/t/type_year.test b/mysql-test/t/type_year.test
index 0e174a556d6..16fd39a59d8 100644
--- a/mysql-test/t/type_year.test
+++ b/mysql-test/t/type_year.test
@@ -30,3 +30,109 @@ select * from t1;
 drop table t1;
 
 --echo End of 5.0 tests
+
+--echo #
+--echo # Bug #49480: WHERE using YEAR columns returns unexpected results
+--echo #
+
+CREATE TABLE t2(yy YEAR(2), c2 CHAR(4));
+CREATE TABLE t4(yyyy YEAR(4), c4 CHAR(4));
+
+INSERT INTO t2 (c2) VALUES (NULL),(1970),(1999),(2000),(2001),(2069);
+INSERT INTO t4 (c4) SELECT c2 FROM t2;
+UPDATE t2 SET yy = c2;
+UPDATE t4 SET yyyy = c4;
+
+SELECT * FROM t2;
+SELECT * FROM t4;
+
+--echo # Comparison of YEAR(2) with YEAR(4)
+
+SELECT * FROM t2, t4 WHERE yy = yyyy;
+SELECT * FROM t2, t4 WHERE yy <=> yyyy;
+SELECT * FROM t2, t4 WHERE yy < yyyy;
+SELECT * FROM t2, t4 WHERE yy > yyyy;
+
+--echo # Comparison of YEAR(2) with YEAR(2)
+
+SELECT * FROM t2 a, t2 b WHERE a.yy = b.yy;
+SELECT * FROM t2 a, t2 b WHERE a.yy <=> b.yy;
+SELECT * FROM t2 a, t2 b WHERE a.yy < b.yy;
+
+--echo # Comparison of YEAR(4) with YEAR(4)
+
+SELECT * FROM t4 a, t4 b WHERE a.yyyy = b.yyyy;
+SELECT * FROM t4 a, t4 b WHERE a.yyyy <=> b.yyyy;
+SELECT * FROM t4 a, t4 b WHERE a.yyyy < b.yyyy;
+
+--echo # Comparison with constants:
+
+SELECT * FROM t2 WHERE yy = NULL;
+SELECT * FROM t4 WHERE yyyy = NULL;
+SELECT * FROM t2 WHERE yy <=> NULL;
+SELECT * FROM t4 WHERE yyyy <=> NULL;
+SELECT * FROM t2 WHERE yy < NULL;
+SELECT * FROM t2 WHERE yy > NULL;
+
+SELECT * FROM t2 WHERE yy = NOW();
+SELECT * FROM t4 WHERE yyyy = NOW();
+
+SELECT * FROM t2 WHERE yy = 99;
+SELECT * FROM t2 WHERE 99 = yy;
+SELECT * FROM t4 WHERE yyyy = 99;
+
+SELECT * FROM t2 WHERE yy = 'test';
+SELECT * FROM t4 WHERE yyyy = 'test';
+
+SELECT * FROM t2 WHERE yy = '1999';
+SELECT * FROM t4 WHERE yyyy = '1999';
+
+SELECT * FROM t2 WHERE yy = 1999;
+SELECT * FROM t4 WHERE yyyy = 1999;
+
+SELECT * FROM t2 WHERE yy = 1999.1;
+SELECT * FROM t4 WHERE yyyy = 1999.1;
+
+SELECT * FROM t2 WHERE yy = 1998.9;
+SELECT * FROM t4 WHERE yyyy = 1998.9;
+
+--echo # Coverage tests for YEAR with zero/2000 constants:
+
+SELECT * FROM t2 WHERE yy = 0;
+SELECT * FROM t2 WHERE yy = '0';
+SELECT * FROM t2 WHERE yy = '0000';
+SELECT * FROM t2 WHERE yy = '2000';
+SELECT * FROM t2 WHERE yy = 2000;
+
+SELECT * FROM t4 WHERE yyyy = 0;
+SELECT * FROM t4 WHERE yyyy = '0';
+SELECT * FROM t4 WHERE yyyy = '0000';
+SELECT * FROM t4 WHERE yyyy = '2000';
+SELECT * FROM t4 WHERE yyyy = 2000;
+
+--echo # Comparison with constants those are out of YEAR range
+--echo # (coverage test for backward compatibility)
+
+SELECT COUNT(yy) FROM t2;
+SELECT COUNT(yyyy) FROM t4;
+
+SELECT COUNT(*) FROM t2 WHERE yy = -1;
+SELECT COUNT(*) FROM t4 WHERE yyyy > -1;
+SELECT COUNT(*) FROM t2 WHERE yy > -1000000000000000000;
+SELECT COUNT(*) FROM t4 WHERE yyyy > -1000000000000000000;
+
+SELECT COUNT(*) FROM t2 WHERE yy < 2156;
+SELECT COUNT(*) FROM t4 WHERE yyyy < 2156;
+SELECT COUNT(*) FROM t2 WHERE yy < 1000000000000000000;
+SELECT COUNT(*) FROM t4 WHERE yyyy < 1000000000000000000;
+
+SELECT * FROM t2 WHERE yy < 123;
+SELECT * FROM t2 WHERE yy > 123;
+SELECT * FROM t4 WHERE yyyy < 123;
+SELECT * FROM t4 WHERE yyyy > 123;
+
+DROP TABLE t2, t4;
+
+--echo #
+
+--echo End of 5.1 tests
diff --git a/mysys/stacktrace.c b/mysys/stacktrace.c
index 66a361b5421..75fda93b56e 100644
--- a/mysys/stacktrace.c
+++ b/mysys/stacktrace.c
@@ -63,7 +63,26 @@ void my_safe_print_str(const char* name, const char* val, int max_len)
   fputc('\n', stderr);
 }
 
-#if HAVE_BACKTRACE && (HAVE_BACKTRACE_SYMBOLS || HAVE_BACKTRACE_SYMBOLS_FD)
+#if defined(HAVE_PRINTSTACK)
+
+/* Use Solaris' symbolic stack trace routine. */
+#include <ucontext.h>
+
+void my_print_stacktrace(uchar* stack_bottom __attribute__((unused)), 
+                         ulong thread_stack __attribute__((unused)))
+{
+  if (printstack(fileno(stderr)) == -1)
+    fprintf(stderr, "Error when traversing the stack, stack appears corrupt.\n");
+  else
+    fprintf(stderr,
+            "Please read "
+            "http://dev.mysql.com/doc/refman/5.1/en/resolve-stack-dump.html\n"
+            "and follow instructions on how to resolve the stack trace.\n"
+            "Resolved stack trace is much more helpful in diagnosing the\n"
+            "problem, so please do resolve it\n");
+}
+
+#elif HAVE_BACKTRACE && (HAVE_BACKTRACE_SYMBOLS || HAVE_BACKTRACE_SYMBOLS_FD)
 
 #if BACKTRACE_DEMANGLE
 
diff --git a/scripts/mysql_system_tables_fix.sql b/scripts/mysql_system_tables_fix.sql
index 8dc1ae94de0..980ee5b80e4 100644
--- a/scripts/mysql_system_tables_fix.sql
+++ b/scripts/mysql_system_tables_fix.sql
@@ -420,18 +420,48 @@ ALTER TABLE proc ADD character_set_client
 ALTER TABLE proc MODIFY character_set_client
                         char(32) collate utf8_bin DEFAULT NULL;
 
+SELECT CASE WHEN COUNT(*) > 0 THEN 
+CONCAT ("WARNING: NULL values of the 'character_set_client' column ('mysql.proc' table) have been updated with a default value (", @@character_set_client, "). Please verify if necessary.")
+ELSE NULL 
+END 
+AS value FROM proc WHERE character_set_client IS NULL;
+
+UPDATE proc SET character_set_client = @@character_set_client 
+                     WHERE character_set_client IS NULL;
+
 ALTER TABLE proc ADD collation_connection
                      char(32) collate utf8_bin DEFAULT NULL
                      AFTER character_set_client;
 ALTER TABLE proc MODIFY collation_connection
                         char(32) collate utf8_bin DEFAULT NULL;
 
+SELECT CASE WHEN COUNT(*) > 0 THEN 
+CONCAT ("WARNING: NULL values of the 'collation_connection' column ('mysql.proc' table) have been updated with a default value (", @@collation_connection, "). Please verify if necessary.")
+ELSE NULL 
+END 
+AS value FROM proc WHERE collation_connection IS NULL;
+
+UPDATE proc SET collation_connection = @@collation_connection
+                     WHERE collation_connection IS NULL;
+
 ALTER TABLE proc ADD db_collation
                      char(32) collate utf8_bin DEFAULT NULL
                      AFTER collation_connection;
 ALTER TABLE proc MODIFY db_collation
                         char(32) collate utf8_bin DEFAULT NULL;
 
+SELECT CASE WHEN COUNT(*) > 0 THEN 
+CONCAT ("WARNING: NULL values of the 'db_collation' column ('mysql.proc' table) have been updated with default values. Please verify if necessary.")
+ELSE NULL
+END
+AS value FROM proc WHERE db_collation IS NULL;
+
+UPDATE proc AS p SET db_collation  = 
+                     ( SELECT DEFAULT_COLLATION_NAME 
+                       FROM INFORMATION_SCHEMA.SCHEMATA 
+                       WHERE SCHEMA_NAME = p.db)
+                     WHERE db_collation IS NULL;
+
 ALTER TABLE proc ADD body_utf8 longblob DEFAULT NULL
                      AFTER db_collation;
 ALTER TABLE proc MODIFY body_utf8 longblob DEFAULT NULL;
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc
index fd5eca8911a..d5a61ea4050 100644
--- a/sql/item_cmpfunc.cc
+++ b/sql/item_cmpfunc.cc
@@ -956,40 +956,9 @@ int Arg_comparator::set_cmp_func(Item_result_field *owner_arg,
     if (agg_item_set_converter(coll, owner->func_name(),
                                b, 1, MY_COLL_CMP_CONV, 1))
       return 1;
-  } else if (type != ROW_RESULT && ((*a)->field_type() == MYSQL_TYPE_YEAR ||
-             (*b)->field_type() == MYSQL_TYPE_YEAR))
-  {
-    is_nulls_eq= is_owner_equal_func();
-    year_as_datetime= FALSE;
-
-    if ((*a)->is_datetime())
-    {
-      year_as_datetime= TRUE;
-      get_value_a_func= &get_datetime_value;
-    } else if ((*a)->field_type() == MYSQL_TYPE_YEAR)
-      get_value_a_func= &get_year_value;
-    else
-    {
-      /*
-        Because convert_constant_item is called only for EXECUTE in PS mode
-        the value of get_value_x_func set in PREPARE might be not
-        valid for EXECUTE.
-      */
-      get_value_a_func= NULL;
-    }
-
-    if ((*b)->is_datetime())
-    {
-      year_as_datetime= TRUE;
-      get_value_b_func= &get_datetime_value;
-    } else if ((*b)->field_type() == MYSQL_TYPE_YEAR)
-      get_value_b_func= &get_year_value;
-    else
-      get_value_b_func= NULL;
-
-    func= &Arg_comparator::compare_year;
-    return 0;
   }
+  else if (try_year_cmp_func(type))
+    return 0;
 
   a= cache_converted_constant(thd, a, &a_cache, type);
   b= cache_converted_constant(thd, b, &b_cache, type);
@@ -997,6 +966,45 @@ int Arg_comparator::set_cmp_func(Item_result_field *owner_arg,
 }
 
 
+/*
+  Helper function to call from Arg_comparator::set_cmp_func()
+*/
+
+bool Arg_comparator::try_year_cmp_func(Item_result type)
+{
+  if (type == ROW_RESULT)
+    return FALSE;
+
+  bool a_is_year= (*a)->field_type() == MYSQL_TYPE_YEAR;
+  bool b_is_year= (*b)->field_type() == MYSQL_TYPE_YEAR;
+
+  if (!a_is_year && !b_is_year)
+    return FALSE;
+
+  if (a_is_year && b_is_year)
+  {
+    get_value_a_func= &get_year_value;
+    get_value_b_func= &get_year_value;
+  }
+  else if (a_is_year && (*b)->is_datetime())
+  {
+    get_value_a_func= &get_year_value;
+    get_value_b_func= &get_datetime_value;
+  }
+  else if (b_is_year && (*a)->is_datetime())
+  {
+    get_value_b_func= &get_year_value;
+    get_value_a_func= &get_datetime_value;
+  }
+  else
+    return FALSE;
+
+  is_nulls_eq= is_owner_equal_func();
+  func= &Arg_comparator::compare_datetime;
+
+  return TRUE;
+}
+
 /**
   Convert and cache a constant.
 
@@ -1023,7 +1031,7 @@ Item** Arg_comparator::cache_converted_constant(THD *thd, Item **value,
       (*value)->const_item() && type != (*value)->result_type())
   {
     Item_cache *cache= Item_cache::get_cache(*value, type);
-    cache->store(*value);
+    cache->setup(*value);
     *cache_item= cache;
     return cache_item;
   }
@@ -1147,7 +1155,7 @@ get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
 
 
 /*
-  Retrieves YEAR value of 19XX form from given item.
+  Retrieves YEAR value of 19XX-00-00 00:00:00 form from given item.
 
   SYNOPSIS
     get_year_value()
@@ -1159,7 +1167,9 @@ get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
 
   DESCRIPTION
     Retrieves the YEAR value of 19XX form from given item for comparison by the
-    compare_year() function.
+    compare_datetime() function.
+    Converts year to DATETIME of form YYYY-00-00 00:00:00 for the compatibility
+    with the get_datetime_value function result.
 
   RETURN
     obtained value
@@ -1186,6 +1196,9 @@ get_year_value(THD *thd, Item ***item_arg, Item **cache_arg,
   if (value <= 1900)
     value+= 1900;
 
+  /* Convert year to DATETIME of form YYYY-00-00 00:00:00 (YYYY0000000000). */
+  value*= 10000000000LL;
+
   return value;
 }
 
@@ -1615,67 +1628,6 @@ int Arg_comparator::compare_e_row()
 }
 
 
-/**
-  Compare values as YEAR.
-
-  @details
-    Compare items as YEAR for EQUAL_FUNC and for other comparison functions.
-    The YEAR values of form 19XX are obtained with help of the get_year_value()
-    function.
-    If one of arguments is of DATE/DATETIME type its value is obtained
-    with help of the get_datetime_value function. In this case YEAR values
-    prior to comparison are converted to the ulonglong YYYY-00-00 00:00:00
-    DATETIME form.
-    If an argument type neither YEAR nor DATE/DATEIME then val_int function
-    is used to obtain value for comparison.
-
-  RETURN
-    If is_nulls_eq is TRUE:
-       1    if items are equal or both are null
-       0    otherwise
-    If is_nulls_eq is FALSE:
-      -1   a < b
-       0   a == b or at least one of items is null
-       1   a > b
-    See the table:
-    is_nulls_eq | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
-    a_is_null   | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 |
-    b_is_null   | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
-    result      | 1 | 0 | 0 |0/1| 0 | 0 | 0 |-1/0/1|
-*/
-
-int Arg_comparator::compare_year()
-{
-  bool a_is_null, b_is_null;
-  ulonglong val1= get_value_a_func ?
-                    (*get_value_a_func)(thd, &a, &a_cache, *b, &a_is_null) :
-                    (*a)->val_int();
-  ulonglong val2= get_value_b_func ?
-                    (*get_value_b_func)(thd, &b, &b_cache, *a, &b_is_null) :
-                    (*b)->val_int();
-  if (!(*a)->null_value)
-  {
-    if (!(*b)->null_value)
-    {
-      if (set_null)
-        owner->null_value= 0;
-      /* Convert year to DATETIME of form YYYY-00-00 00:00:00 when necessary. */
-      if((*a)->field_type() == MYSQL_TYPE_YEAR && year_as_datetime)
-        val1*= 10000000000LL;
-      if((*b)->field_type() == MYSQL_TYPE_YEAR && year_as_datetime)
-        val2*= 10000000000LL;
-
-      if (val1 < val2)	return is_nulls_eq ? 0 : -1;
-      if (val1 == val2)   return is_nulls_eq ? 1 : 0;
-      return is_nulls_eq ? 0 : 1;
-    }
-  }
-  if (set_null)
-    owner->null_value= is_nulls_eq ? 0 : 1;
-  return (is_nulls_eq && (*a)->null_value == (*b)->null_value) ? 1 : 0;
-}
-
-
 void Item_func_truth::fix_length_and_dec()
 {
   maybe_null= 0;
@@ -4291,7 +4243,7 @@ Item *Item_cond::compile(Item_analyzer analyzer, uchar **arg_p,
     uchar *arg_v= *arg_p;
     Item *new_item= item->compile(analyzer, &arg_v, transformer, arg_t);
     if (new_item && new_item != item)
-      li.replace(new_item);
+      current_thd->change_item_tree(li.ref(), new_item);
   }
   return Item_func::transform(transformer, arg_t);
 }
@@ -5292,7 +5244,8 @@ Item *Item_bool_rowready_func2::negated_item()
 }
 
 Item_equal::Item_equal(Item_field *f1, Item_field *f2)
-  : Item_bool_func(), const_item(0), eval_item(0), cond_false(0)
+  : Item_bool_func(), const_item(0), eval_item(0), cond_false(0),
+    compare_as_dates(FALSE)
 {
   const_item_cache= 0;
   fields.push_back(f1);
@@ -5305,6 +5258,7 @@ Item_equal::Item_equal(Item *c, Item_field *f)
   const_item_cache= 0;
   fields.push_back(f);
   const_item= c;
+  compare_as_dates= f->is_datetime();
 }
 
 
@@ -5319,9 +5273,45 @@ Item_equal::Item_equal(Item_equal *item_equal)
     fields.push_back(item);
   }
   const_item= item_equal->const_item;
+  compare_as_dates= item_equal->compare_as_dates;
   cond_false= item_equal->cond_false;
 }
 
+
+void Item_equal::compare_const(Item *c)
+{
+  if (compare_as_dates)
+  {
+    cmp.set_datetime_cmp_func(this, &c, &const_item);
+    cond_false= cmp.compare();
+  }
+  else
+  {
+    Item_func_eq *func= new Item_func_eq(c, const_item);
+    func->set_cmp_func();
+    func->quick_fix_field();
+    cond_false= !func->val_int();
+  }
+  if (cond_false)
+    const_item_cache= 1;
+}
+
+
+void Item_equal::add(Item *c, Item_field *f)
+{
+  if (cond_false)
+    return;
+  if (!const_item)
+  {
+    DBUG_ASSERT(f);
+    const_item= c;
+    compare_as_dates= f->is_datetime();
+    return;
+  }
+  compare_const(c);
+}
+
+
 void Item_equal::add(Item *c)
 {
   if (cond_false)
@@ -5331,11 +5321,7 @@ void Item_equal::add(Item *c)
     const_item= c;
     return;
   }
-  Item_func_eq *func= new Item_func_eq(c, const_item);
-  func->set_cmp_func();
-  func->quick_fix_field();
-  if ((cond_false= !func->val_int()))
-    const_item_cache= 1;
+  compare_const(c);
 }
 
 void Item_equal::add(Item_field *f)
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 33f1e9b6950..980b839aa41 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -45,24 +45,22 @@ class Arg_comparator: public Sql_alloc
   bool is_nulls_eq;                // TRUE <=> compare for the EQUAL_FUNC
   bool set_null;                   // TRUE <=> set owner->null_value
                                    //   when one of arguments is NULL.
-  bool year_as_datetime;           // TRUE <=> convert YEAR value to
-                                   // the YYYY-00-00 00:00:00 DATETIME
-                                   // format. See compare_year.
   enum enum_date_cmp_type { CMP_DATE_DFLT= 0, CMP_DATE_WITH_DATE,
                             CMP_DATE_WITH_STR, CMP_STR_WITH_DATE };
   longlong (*get_value_a_func)(THD *thd, Item ***item_arg, Item **cache_arg,
                                Item *warn_item, bool *is_null);
   longlong (*get_value_b_func)(THD *thd, Item ***item_arg, Item **cache_arg,
                                Item *warn_item, bool *is_null);
+  bool try_year_cmp_func(Item_result type);
 public:
   DTCollation cmp_collation;
   /* Allow owner function to use string buffers. */
   String value1, value2;
 
   Arg_comparator(): thd(0), a_cache(0), b_cache(0), set_null(0),
-    year_as_datetime(0), get_value_a_func(0), get_value_b_func(0) {};
+    get_value_a_func(0), get_value_b_func(0) {};
   Arg_comparator(Item **a1, Item **a2): a(a1), b(a2), thd(0),
-    a_cache(0), b_cache(0), set_null(0), year_as_datetime(0),
+    a_cache(0), b_cache(0), set_null(0),
     get_value_a_func(0), get_value_b_func(0) {};
 
   int set_compare_func(Item_result_field *owner, Item_result type);
@@ -104,7 +102,6 @@ public:
   int compare_real_fixed();
   int compare_e_real_fixed();
   int compare_datetime();        // compare args[0] & args[1] as DATETIMEs
-  int compare_year();
 
   static enum enum_date_cmp_type can_compare_as_dates(Item *a, Item *b,
                                                       ulonglong *const_val_arg);
@@ -1586,7 +1583,9 @@ class Item_equal: public Item_bool_func
   List<Item_field> fields; /* list of equal field items                    */
   Item *const_item;        /* optional constant item equal to fields items */
   cmp_item *eval_item;
+  Arg_comparator cmp;
   bool cond_false;
+  bool compare_as_dates;
 public:
   inline Item_equal()
     : Item_bool_func(), const_item(0), eval_item(0), cond_false(0)
@@ -1595,6 +1594,8 @@ public:
   Item_equal(Item *c, Item_field *f);
   Item_equal(Item_equal *item_equal);
   inline Item* get_const() { return const_item; }
+  void compare_const(Item *c);
+  void add(Item *c, Item_field *f);
   void add(Item *c);
   void add(Item_field *f);
   uint members();
diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc
index 86a892a9dcc..db84217f987 100644
--- a/sql/item_strfunc.cc
+++ b/sql/item_strfunc.cc
@@ -1720,68 +1720,65 @@ String *Item_func_encrypt::val_str(String *str)
 #endif	/* HAVE_CRYPT */
 }
 
+bool Item_func_encode::seed()
+{
+  char buf[80];
+  ulong rand_nr[2];
+  String *key, tmp(buf, sizeof(buf), system_charset_info);
+
+  if (!(key= args[1]->val_str(&tmp)))
+    return TRUE;
+
+  hash_password(rand_nr, key->ptr(), key->length());
+  sql_crypt.init(rand_nr);
+
+  return FALSE;
+}
+
 void Item_func_encode::fix_length_and_dec()
 {
   max_length=args[0]->max_length;
   maybe_null=args[0]->maybe_null || args[1]->maybe_null;
   collation.set(&my_charset_bin);
+  /* Precompute the seed state if the item is constant. */
+  seeded= args[1]->const_item() &&
+          (args[1]->result_type() == STRING_RESULT) && !seed();
 }
 
 String *Item_func_encode::val_str(String *str)
 {
   String *res;
-  char pw_buff[80];
-  String tmp_pw_value(pw_buff, sizeof(pw_buff), system_charset_info);
-  String *password;
   DBUG_ASSERT(fixed == 1);
 
   if (!(res=args[0]->val_str(str)))
   {
-    null_value=1; /* purecov: inspected */
-    return 0; /* purecov: inspected */
+    null_value= 1;
+    return NULL;
   }
 
-  if (!(password=args[1]->val_str(& tmp_pw_value)))
+  if (!seeded && seed())
   {
-    null_value=1;
-    return 0;
+    null_value= 1;
+    return NULL;
   }
 
-  null_value=0;
-  res=copy_if_not_alloced(str,res,res->length());
-  SQL_CRYPT sql_crypt(password->ptr(), password->length());
-  sql_crypt.init();
-  sql_crypt.encode((char*) res->ptr(),res->length());
-  res->set_charset(&my_charset_bin);
+  null_value= 0;
+  res= copy_if_not_alloced(str, res, res->length());
+  transform(res);
+  sql_crypt.reinit();
+
   return res;
 }
 
-String *Item_func_decode::val_str(String *str)
+void Item_func_encode::transform(String *res)
 {
-  String *res;
-  char pw_buff[80];
-  String tmp_pw_value(pw_buff, sizeof(pw_buff), system_charset_info);
-  String *password;
-  DBUG_ASSERT(fixed == 1);
-
-  if (!(res=args[0]->val_str(str)))
-  {
-    null_value=1; /* purecov: inspected */
-    return 0; /* purecov: inspected */
-  }
-
-  if (!(password=args[1]->val_str(& tmp_pw_value)))
-  {
-    null_value=1;
-    return 0;
-  }
+  sql_crypt.encode((char*) res->ptr(),res->length());
+  res->set_charset(&my_charset_bin);
+}
 
-  null_value=0;
-  res=copy_if_not_alloced(str,res,res->length());
-  SQL_CRYPT sql_crypt(password->ptr(), password->length());
-  sql_crypt.init();
+void Item_func_decode::transform(String *res)
+{
   sql_crypt.decode((char*) res->ptr(),res->length());
-  return res;
 }
 
 
diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h
index 2233679e40c..ced164554e4 100644
--- a/sql/item_strfunc.h
+++ b/sql/item_strfunc.h
@@ -354,12 +354,22 @@ public:
 
 class Item_func_encode :public Item_str_func
 {
+private:
+  /** Whether the PRNG has already been seeded. */
+  bool seeded;
+protected:
+  SQL_CRYPT sql_crypt;
 public:
   Item_func_encode(Item *a, Item *seed):
     Item_str_func(a, seed) {}
   String *val_str(String *);
   void fix_length_and_dec();
   const char *func_name() const { return "encode"; }
+protected:
+  virtual void transform(String *);
+private:
+  /** Provide a seed for the PRNG sequence. */
+  bool seed();
 };
 
 
@@ -367,8 +377,9 @@ class Item_func_decode :public Item_func_encode
 {
 public:
   Item_func_decode(Item *a, Item *seed): Item_func_encode(a, seed) {}
-  String *val_str(String *);
   const char *func_name() const { return "decode"; }
+protected:
+  void transform(String *);
 };
 
 
diff --git a/sql/item_timefunc.cc b/sql/item_timefunc.cc
index 8208b0b930d..1702868aeb8 100644
--- a/sql/item_timefunc.cc
+++ b/sql/item_timefunc.cc
@@ -2608,9 +2608,9 @@ void Item_char_typecast::fix_length_and_dec()
                        from_cs != &my_charset_bin &&
                        cast_cs != &my_charset_bin);
   collation.set(cast_cs, DERIVATION_IMPLICIT);
-  char_length= (cast_length >= 0) ?
-                 cast_length :
-                 args[0]->max_length / args[0]->collation.collation->mbmaxlen;
+  char_length= (cast_length >= 0) ? cast_length :
+                args[0]->max_length /
+                (cast_cs == &my_charset_bin ? 1 : args[0]->collation.collation->mbmaxlen);
   max_length= char_length * cast_cs->mbmaxlen;
 }
 
diff --git a/sql/log.cc b/sql/log.cc
index 64a4def103c..7578d391782 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -1910,6 +1910,22 @@ void MYSQL_LOG::init(enum_log_type log_type_arg,
 }
 
 
+bool MYSQL_LOG::init_and_set_log_file_name(const char *log_name,
+                                           const char *new_name,
+                                           enum_log_type log_type_arg,
+                                           enum cache_type io_cache_type_arg)
+{
+  init(log_type_arg, io_cache_type_arg);
+
+  if (new_name && !strmov(log_file_name, new_name))
+    return TRUE;
+  else if (!new_name && generate_new_name(log_file_name, log_name))
+    return TRUE;
+
+  return FALSE;
+}
+
+
 /*
   Open a (new) log file.
 
@@ -1942,17 +1958,14 @@ bool MYSQL_LOG::open(const char *log_name, enum_log_type log_type_arg,
 
   write_error= 0;
 
-  init(log_type_arg, io_cache_type_arg);
-
   if (!(name= my_strdup(log_name, MYF(MY_WME))))
   {
     name= (char *)log_name; // for the error message
     goto err;
   }
 
-  if (new_name)
-    strmov(log_file_name, new_name);
-  else if (generate_new_name(log_file_name, name))
+  if (init_and_set_log_file_name(name, new_name,
+                                 log_type_arg, io_cache_type_arg))
     goto err;
 
   if (io_cache_type == SEQ_READ_APPEND)
@@ -2443,7 +2456,7 @@ MYSQL_BIN_LOG::MYSQL_BIN_LOG(uint *sync_period)
   */
   index_file_name[0] = 0;
   bzero((char*) &index_file, sizeof(index_file));
-  bzero((char*) &purge_temp, sizeof(purge_temp));
+  bzero((char*) &purge_index_file, sizeof(purge_index_file));
 }
 
 /* this is called only once */
@@ -2487,7 +2500,7 @@ void MYSQL_BIN_LOG::init_pthread_objects()
 
 
 bool MYSQL_BIN_LOG::open_index_file(const char *index_file_name_arg,
-                                const char *log_name)
+                                    const char *log_name, bool need_mutex)
 {
   File index_file_nr= -1;
   DBUG_ASSERT(!my_b_inited(&index_file));
@@ -2512,7 +2525,8 @@ bool MYSQL_BIN_LOG::open_index_file(const char *index_file_name_arg,
        init_io_cache(&index_file, index_file_nr,
                      IO_SIZE, WRITE_CACHE,
                      my_seek(index_file_nr,0L,MY_SEEK_END,MYF(0)),
-			0, MYF(MY_WME | MY_WAIT_IF_FULL)))
+			0, MYF(MY_WME | MY_WAIT_IF_FULL)) ||
+      DBUG_EVALUATE_IF("fault_injection_openning_index", 1, 0))
   {
     /*
       TODO: all operations creating/deleting the index file or a log, should
@@ -2523,6 +2537,28 @@ bool MYSQL_BIN_LOG::open_index_file(const char *index_file_name_arg,
       my_close(index_file_nr,MYF(0));
     return TRUE;
   }
+
+#ifdef HAVE_REPLICATION
+  /*
+    Sync the index by purging any binary log file that is not registered.
+    In other words, either purge binary log files that were removed from
+    the index but not purged from the file system due to a crash or purge
+    any binary log file that was created but not register in the index
+    due to a crash.
+  */
+
+  if (set_purge_index_file_name(index_file_name_arg) ||
+      open_purge_index_file(FALSE) ||
+      purge_index_entry(NULL, NULL, need_mutex) ||
+      close_purge_index_file() ||
+      DBUG_EVALUATE_IF("fault_injection_recovering_index", 1, 0))
+  {
+    sql_print_error("MYSQL_BIN_LOG::open_index_file failed to sync the index "
+                    "file.");
+    return TRUE;
+  }
+#endif
+
   return FALSE;
 }
 
@@ -2547,17 +2583,44 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
                          enum cache_type io_cache_type_arg,
                          bool no_auto_events_arg,
                          ulong max_size_arg,
-                         bool null_created_arg)
+                         bool null_created_arg,
+                         bool need_mutex)
 {
   File file= -1;
+
   DBUG_ENTER("MYSQL_BIN_LOG::open");
   DBUG_PRINT("enter",("log_type: %d",(int) log_type_arg));
 
-  write_error=0;
+  if (init_and_set_log_file_name(log_name, new_name, log_type_arg,
+                                 io_cache_type_arg))
+  {
+    sql_print_error("MSYQL_BIN_LOG::open failed to generate new file name.");
+    DBUG_RETURN(1);
+  }
+
+#ifdef HAVE_REPLICATION
+  if (open_purge_index_file(TRUE) ||
+      register_create_index_entry(log_file_name) ||
+      sync_purge_index_file() ||
+      DBUG_EVALUATE_IF("fault_injection_registering_index", 1, 0))
+  {
+    sql_print_error("MSYQL_BIN_LOG::open failed to sync the index file.");
+    DBUG_RETURN(1);
+  }
+  DBUG_EXECUTE_IF("crash_create_non_critical_before_update_index", abort(););
+#endif
+
+  write_error= 0;
 
   /* open the main log file */
-  if (MYSQL_LOG::open(log_name, log_type_arg, new_name, io_cache_type_arg))
+  if (MYSQL_LOG::open(log_name, log_type_arg, new_name,
+                      io_cache_type_arg))
+  {
+#ifdef HAVE_REPLICATION
+    close_purge_index_file();
+#endif
     DBUG_RETURN(1);                            /* all warnings issued */
+  }
 
   init(no_auto_events_arg, max_size_arg);
 
@@ -2583,9 +2646,6 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
       write_file_name_to_index_file= 1;
     }
 
-    DBUG_ASSERT(my_b_inited(&index_file) != 0);
-    reinit_io_cache(&index_file, WRITE_CACHE,
-                    my_b_filelength(&index_file), 0, 0);
     if (need_start_event && !no_auto_events)
     {
       /*
@@ -2643,23 +2703,44 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
 
     if (write_file_name_to_index_file)
     {
+#ifdef HAVE_REPLICATION
+      DBUG_EXECUTE_IF("crash_create_critical_before_update_index", abort(););
+#endif
+
+      DBUG_ASSERT(my_b_inited(&index_file) != 0);
+      reinit_io_cache(&index_file, WRITE_CACHE,
+                      my_b_filelength(&index_file), 0, 0);
       /*
         As this is a new log file, we write the file name to the index
         file. As every time we write to the index file, we sync it.
       */
-      if (my_b_write(&index_file, (uchar*) log_file_name,
-		     strlen(log_file_name)) ||
-	  my_b_write(&index_file, (uchar*) "\n", 1) ||
-	  flush_io_cache(&index_file) ||
+      if (DBUG_EVALUATE_IF("fault_injection_updating_index", 1, 0) ||
+          my_b_write(&index_file, (uchar*) log_file_name,
+                     strlen(log_file_name)) ||
+          my_b_write(&index_file, (uchar*) "\n", 1) ||
+          flush_io_cache(&index_file) ||
           my_sync(index_file.file, MYF(MY_WME)))
-	goto err;
+        goto err;
+
+#ifdef HAVE_REPLICATION
+      DBUG_EXECUTE_IF("crash_create_after_update_index", abort(););
+#endif
     }
   }
   log_state= LOG_OPENED;
 
+#ifdef HAVE_REPLICATION
+  close_purge_index_file();
+#endif
+
   DBUG_RETURN(0);
 
 err:
+#ifdef HAVE_REPLICATION
+  if (is_inited_purge_index_file())
+    purge_index_entry(NULL, NULL, need_mutex);
+  close_purge_index_file();
+#endif
   sql_print_error("Could not use %s for logging (error %d). \
 Turning logging off for the whole duration of the MySQL server process. \
 To turn it on again: fix the cause, \
@@ -2916,8 +2997,15 @@ bool MYSQL_BIN_LOG::reset_logs(THD* thd)
   name=0;					// Protect against free
   close(LOG_CLOSE_TO_BE_OPENED);
 
-  /* First delete all old log files */
+  /*
+    First delete all old log files and then update the index file.
+    As we first delete the log files and do not use sort of logging,
+    a crash may lead to an inconsistent state where the index has
+    references to non-existent files.
 
+    We need to invert the steps and use the purge_index_file methods
+    in order to make the operation safe.
+  */
   if (find_log_pos(&linfo, NullS, 0))
   {
     error=1;
@@ -2984,8 +3072,8 @@ bool MYSQL_BIN_LOG::reset_logs(THD* thd)
   }
   if (!thd->slave_thread)
     need_start_event=1;
-  if (!open_index_file(index_file_name, 0))
-    open(save_name, log_type, 0, io_cache_type, no_auto_events, max_size, 0);
+  if (!open_index_file(index_file_name, 0, FALSE))
+    open(save_name, log_type, 0, io_cache_type, no_auto_events, max_size, 0, FALSE);
   my_free((uchar*) save_name, MYF(0));
 
 err:
@@ -3172,7 +3260,7 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
                           bool need_update_threads, 
                           ulonglong *decrease_log_space)
 {
-  int error;
+  int error= 0;
   bool exit_loop= 0;
   LOG_INFO log_info;
   THD *thd= current_thd;
@@ -3183,33 +3271,15 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
     pthread_mutex_lock(&LOCK_index);
   if ((error=find_log_pos(&log_info, to_log, 0 /*no mutex*/))) 
   {
-    sql_print_error("MYSQL_LOG::purge_logs was called with file %s not "
+    sql_print_error("MYSQL_BIN_LOG::purge_logs was called with file %s not "
                     "listed in the index.", to_log);
     goto err;
   }
 
-  /*
-    For crash recovery reasons the index needs to be updated before
-    any files are deleted. Move files to be deleted into a temp file
-    to be processed after the index is updated.
-  */
-  if (!my_b_inited(&purge_temp))
-  {
-    if ((error=open_cached_file(&purge_temp, mysql_tmpdir, TEMP_PREFIX,
-                                DISK_BUFFER_SIZE, MYF(MY_WME))))
-    {
-      sql_print_error("MYSQL_LOG::purge_logs failed to open purge_temp");
-      goto err;
-    }
-  }
-  else
+  if ((error= open_purge_index_file(TRUE)))
   {
-    if ((error=reinit_io_cache(&purge_temp, WRITE_CACHE, 0, 0, 1)))
-    {
-      sql_print_error("MYSQL_LOG::purge_logs failed to reinit purge_temp "
-                      "for write");
-      goto err;
-    }
+    sql_print_error("MYSQL_BIN_LOG::purge_logs failed to sync the index file.");
+    goto err;
   }
 
   /*
@@ -3219,51 +3289,177 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
   if ((error=find_log_pos(&log_info, NullS, 0 /*no mutex*/)))
     goto err;
   while ((strcmp(to_log,log_info.log_file_name) || (exit_loop=included)) &&
+         !is_active(log_info.log_file_name) &&
          !log_in_use(log_info.log_file_name))
   {
-    if ((error=my_b_write(&purge_temp, (const uchar*)log_info.log_file_name,
-                          strlen(log_info.log_file_name))) ||
-        (error=my_b_write(&purge_temp, (const uchar*)"\n", 1)))
+    if ((error= register_purge_index_entry(log_info.log_file_name)))
     {
-      sql_print_error("MYSQL_LOG::purge_logs failed to copy %s to purge_temp",
+      sql_print_error("MYSQL_BIN_LOG::purge_logs failed to copy %s to register file.",
                       log_info.log_file_name);
       goto err;
     }
 
     if (find_next_log(&log_info, 0) || exit_loop)
       break;
- }
+  }
+
+  DBUG_EXECUTE_IF("crash_purge_before_update_index", abort(););
+
+  if ((error= sync_purge_index_file()))
+  {
+    sql_print_error("MSYQL_BIN_LOG::purge_logs failed to flush register file.");
+    goto err;
+  }
 
   /* We know how many files to delete. Update index file. */
   if ((error=update_log_index(&log_info, need_update_threads)))
   {
-    sql_print_error("MSYQL_LOG::purge_logs failed to update the index file");
+    sql_print_error("MSYQL_BIN_LOG::purge_logs failed to update the index file");
     goto err;
   }
 
-  DBUG_EXECUTE_IF("crash_after_update_index", abort(););
+  DBUG_EXECUTE_IF("crash_purge_critical_after_update_index", abort(););
+
+err:
+  /* Read each entry from purge_index_file and delete the file. */
+  if (is_inited_purge_index_file() &&
+      (error= purge_index_entry(thd, decrease_log_space, FALSE)))
+    sql_print_error("MSYQL_BIN_LOG::purge_logs failed to process registered files"
+                    " that would be purged.");
+  close_purge_index_file();
+
+  DBUG_EXECUTE_IF("crash_purge_non_critical_after_update_index", abort(););
+
+  if (need_mutex)
+    pthread_mutex_unlock(&LOCK_index);
+  DBUG_RETURN(error);
+}
+
+int MYSQL_BIN_LOG::set_purge_index_file_name(const char *base_file_name)
+{
+  int error= 0;
+  DBUG_ENTER("MYSQL_BIN_LOG::set_purge_index_file_name");
+  if (fn_format(purge_index_file_name, base_file_name, mysql_data_home,
+                ".~rec~", MYF(MY_UNPACK_FILENAME | MY_SAFE_PATH |
+                              MY_REPLACE_EXT)) == NULL)
+  {
+    error= 1;
+    sql_print_error("MYSQL_BIN_LOG::set_purge_index_file_name failed to set "
+                      "file name.");
+  }
+  DBUG_RETURN(error);
+}
+
+int MYSQL_BIN_LOG::open_purge_index_file(bool destroy)
+{
+  int error= 0;
+  File file= -1;
+
+  DBUG_ENTER("MYSQL_BIN_LOG::open_purge_index_file");
+
+  if (destroy)
+    close_purge_index_file();
+
+  if (!my_b_inited(&purge_index_file))
+  {
+    if ((file= my_open(purge_index_file_name, O_RDWR | O_CREAT | O_BINARY,
+                       MYF(MY_WME | ME_WAITTANG))) < 0  ||
+        init_io_cache(&purge_index_file, file, IO_SIZE,
+                      (destroy ? WRITE_CACHE : READ_CACHE),
+                      0, 0, MYF(MY_WME | MY_NABP | MY_WAIT_IF_FULL)))
+    {
+      error= 1;
+      sql_print_error("MYSQL_BIN_LOG::open_purge_index_file failed to open register "
+                      " file.");
+    }
+  }
+  DBUG_RETURN(error);
+}
+
+int MYSQL_BIN_LOG::close_purge_index_file()
+{
+  int error= 0;
+
+  DBUG_ENTER("MYSQL_BIN_LOG::close_purge_index_file");
 
-  /* Switch purge_temp for read. */
-  if ((error=reinit_io_cache(&purge_temp, READ_CACHE, 0, 0, 0)))
+  if (my_b_inited(&purge_index_file))
   {
-    sql_print_error("MSYQL_LOG::purge_logs failed to reinit purge_temp "
+    end_io_cache(&purge_index_file);
+    error= my_close(purge_index_file.file, MYF(0));
+  }
+  my_delete(purge_index_file_name, MYF(0));
+  bzero((char*) &purge_index_file, sizeof(purge_index_file));
+
+  DBUG_RETURN(error);
+}
+
+bool MYSQL_BIN_LOG::is_inited_purge_index_file()
+{
+  DBUG_ENTER("MYSQL_BIN_LOG::is_inited_purge_index_file");
+  DBUG_RETURN (my_b_inited(&purge_index_file));
+}
+
+int MYSQL_BIN_LOG::sync_purge_index_file()
+{
+  int error= 0;
+  DBUG_ENTER("MYSQL_BIN_LOG::sync_purge_index_file");
+
+  if ((error= flush_io_cache(&purge_index_file)) ||
+      (error= my_sync(purge_index_file.file, MYF(MY_WME))))
+    DBUG_RETURN(error);
+
+  DBUG_RETURN(error);
+}
+
+int MYSQL_BIN_LOG::register_purge_index_entry(const char *entry)
+{
+  int error= 0;
+  DBUG_ENTER("MYSQL_BIN_LOG::register_purge_index_entry");
+
+  if ((error=my_b_write(&purge_index_file, (const uchar*)entry, strlen(entry))) ||
+      (error=my_b_write(&purge_index_file, (const uchar*)"\n", 1)))
+    DBUG_RETURN (error);
+
+  DBUG_RETURN(error);
+}
+
+int MYSQL_BIN_LOG::register_create_index_entry(const char *entry)
+{
+  DBUG_ENTER("MYSQL_BIN_LOG::register_create_index_entry");
+  DBUG_RETURN(register_purge_index_entry(entry));
+}
+
+int MYSQL_BIN_LOG::purge_index_entry(THD *thd, ulonglong *decrease_log_space,
+                                     bool need_mutex)
+{
+  MY_STAT s;
+  int error= 0;
+  LOG_INFO log_info;
+  LOG_INFO check_log_info;
+
+  DBUG_ENTER("MYSQL_BIN_LOG:purge_index_entry");
+
+  DBUG_ASSERT(my_b_inited(&purge_index_file));
+
+  if ((error=reinit_io_cache(&purge_index_file, READ_CACHE, 0, 0, 0)))
+  {
+    sql_print_error("MSYQL_BIN_LOG::purge_index_entry failed to reinit register file "
                     "for read");
     goto err;
   }
 
-  /* Read each entry from purge_temp and delete the file. */
   for (;;)
   {
     uint length;
 
-    if ((length=my_b_gets(&purge_temp, log_info.log_file_name,
+    if ((length=my_b_gets(&purge_index_file, log_info.log_file_name,
                           FN_REFLEN)) <= 1)
     {
-      if (purge_temp.error)
+      if (purge_index_file.error)
       {
-        error= purge_temp.error;
-        sql_print_error("MSYQL_LOG::purge_logs error %d reading from "
-                        "purge_temp", error);
+        error= purge_index_file.error;
+        sql_print_error("MSYQL_BIN_LOG::purge_index_entry error %d reading from "
+                        "register file.", error);
         goto err;
       }
 
@@ -3274,9 +3470,6 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
     /* Get rid of the trailing '\n' */
     log_info.log_file_name[length-1]= 0;
 
-    ha_binlog_index_purge_file(current_thd, log_info.log_file_name);
-
-    MY_STAT s;
     if (!my_stat(log_info.log_file_name, &s, MYF(0)))
     {
       if (my_errno == ENOENT) 
@@ -3324,64 +3517,92 @@ int MYSQL_BIN_LOG::purge_logs(const char *to_log,
     }
     else
     {
-      DBUG_PRINT("info",("purging %s",log_info.log_file_name));
-      if (!my_delete(log_info.log_file_name, MYF(0)))
+      if ((error= find_log_pos(&check_log_info, log_info.log_file_name, need_mutex)))
       {
-        if (decrease_log_space)
-          *decrease_log_space-= s.st_size;
-      }
-      else
-      {
-        if (my_errno == ENOENT) 
+        if (error != LOG_INFO_EOF)
         {
           if (thd)
           {
             push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                                ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
+                                ER_BINLOG_PURGE_FATAL_ERR,
+                                "a problem with deleting %s and "
+                                "reading the binlog index file",
                                 log_info.log_file_name);
           }
-          sql_print_information("Failed to delete file '%s'",
-                                log_info.log_file_name);
-          my_errno= 0;
+          else
+          {
+            sql_print_information("Failed to delete file '%s' and "
+                                  "read the binlog index file",
+                                  log_info.log_file_name);
+          }
+          goto err;
+        }
+           
+        error= 0;
+        if (!need_mutex)
+        {
+          /*
+            This is to avoid triggering an error in NDB.
+          */
+          ha_binlog_index_purge_file(current_thd, log_info.log_file_name);
+        }
+
+        DBUG_PRINT("info",("purging %s",log_info.log_file_name));
+        if (!my_delete(log_info.log_file_name, MYF(0)))
+        {
+          if (decrease_log_space)
+            *decrease_log_space-= s.st_size;
         }
         else
         {
-          if (thd)
+          if (my_errno == ENOENT)
           {
-            push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                                ER_BINLOG_PURGE_FATAL_ERR,
-                                "a problem with deleting %s; "
-                                "consider examining correspondence "
-                                "of your binlog index file "
-                                "to the actual binlog files",
-                                log_info.log_file_name);
+            if (thd)
+            {
+              push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                                  ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
+                                  log_info.log_file_name);
+            }
+            sql_print_information("Failed to delete file '%s'",
+                                  log_info.log_file_name);
+            my_errno= 0;
           }
           else
           {
-            sql_print_information("Failed to delete file '%s'; "
+            if (thd)
+            {
+              push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_ERROR,
+                                  ER_BINLOG_PURGE_FATAL_ERR,
+                                  "a problem with deleting %s; "
                                   "consider examining correspondence "
                                   "of your binlog index file "
                                   "to the actual binlog files",
                                   log_info.log_file_name);
-          }
-          if (my_errno == EMFILE)
-          {
-            DBUG_PRINT("info",
-                       ("my_errno: %d, set ret = LOG_INFO_EMFILE", my_errno));
-            error= LOG_INFO_EMFILE;
+            }
+            else
+            {
+              sql_print_information("Failed to delete file '%s'; "
+                                    "consider examining correspondence "
+                                    "of your binlog index file "
+                                    "to the actual binlog files",
+                                    log_info.log_file_name);
+            }
+            if (my_errno == EMFILE)
+            {
+              DBUG_PRINT("info",
+                         ("my_errno: %d, set ret = LOG_INFO_EMFILE", my_errno));
+              error= LOG_INFO_EMFILE;
+              goto err;
+            }
+            error= LOG_INFO_FATAL;
             goto err;
           }
-          error= LOG_INFO_FATAL;
-          goto err;
         }
       }
     }
   }
 
 err:
-  close_cached_file(&purge_temp);
-  if (need_mutex)
-    pthread_mutex_unlock(&LOCK_index);
   DBUG_RETURN(error);
 }
 
@@ -3421,7 +3642,8 @@ int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
     goto err;
 
   while (strcmp(log_file_name, log_info.log_file_name) &&
-	 !log_in_use(log_info.log_file_name))
+	 !is_active(log_info.log_file_name) &&
+         !log_in_use(log_info.log_file_name))
   {
     if (!my_stat(log_info.log_file_name, &stat_area, MYF(0)))
     {
@@ -3430,14 +3652,6 @@ int MYSQL_BIN_LOG::purge_logs_before_date(time_t purge_time)
         /*
           It's not fatal if we can't stat a log file that does not exist.
         */
-        if (thd)
-        {
-          push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                              ER_LOG_PURGE_NO_FILE, ER(ER_LOG_PURGE_NO_FILE),
-                              log_info.log_file_name);
-        }
-        sql_print_information("Failed to execute my_stat on file '%s'",
-                              log_info.log_file_name);
         my_errno= 0;
       }
       else
@@ -3632,9 +3846,9 @@ void MYSQL_BIN_LOG::new_file_impl(bool need_lock)
   */
 
   /* reopen index binlog file, BUG#34582 */
-  if (!open_index_file(index_file_name, 0))
-    open(old_name, log_type, new_name_ptr, 
-         io_cache_type, no_auto_events, max_size, 1);
+  if (!open_index_file(index_file_name, 0, FALSE))
+    open(old_name, log_type, new_name_ptr,
+         io_cache_type, no_auto_events, max_size, 1, FALSE);
   my_free(old_name,MYF(0));
 
 end:
@@ -5591,7 +5805,7 @@ int TC_LOG_BINLOG::open(const char *opt_name)
   if (using_heuristic_recover())
   {
     /* generate a new binlog to mask a corrupted one */
-    open(opt_name, LOG_BIN, 0, WRITE_CACHE, 0, max_binlog_size, 0);
+    open(opt_name, LOG_BIN, 0, WRITE_CACHE, 0, max_binlog_size, 0, TRUE);
     cleanup();
     return 1;
   }
diff --git a/sql/log.h b/sql/log.h
index a31be6dcce6..29a12f18a78 100644
--- a/sql/log.h
+++ b/sql/log.h
@@ -172,6 +172,10 @@ public:
             enum_log_type log_type,
             const char *new_name,
             enum cache_type io_cache_type_arg);
+  bool init_and_set_log_file_name(const char *log_name,
+                                  const char *new_name,
+                                  enum_log_type log_type_arg,
+                                  enum cache_type io_cache_type_arg);
   void init(enum_log_type log_type_arg,
             enum cache_type io_cache_type_arg);
   void close(uint exiting);
@@ -233,14 +237,15 @@ class MYSQL_BIN_LOG: public TC_LOG, private MYSQL_LOG
   pthread_cond_t update_cond;
   ulonglong bytes_written;
   IO_CACHE index_file;
+  char index_file_name[FN_REFLEN];
   /*
-    purge_temp is a temp file used in purge_logs so that the index file
+    purge_file is a temp file used in purge_logs so that the index file
     can be updated before deleting files from disk, yielding better crash
     recovery. It is created on demand the first time purge_logs is called
     and then reused for subsequent calls. It is cleaned up in cleanup().
   */
-  IO_CACHE purge_temp;
-  char index_file_name[FN_REFLEN];
+  IO_CACHE purge_index_file;
+  char purge_index_file_name[FN_REFLEN];
   /*
      The max size before rotation (usable only if log_type == LOG_BIN: binary
      logs and relay logs).
@@ -362,9 +367,10 @@ public:
             const char *new_name,
 	    enum cache_type io_cache_type_arg,
 	    bool no_auto_events_arg, ulong max_size,
-            bool null_created);
+            bool null_created,
+            bool need_mutex);
   bool open_index_file(const char *index_file_name_arg,
-                       const char *log_name);
+                       const char *log_name, bool need_mutex);
   /* Use this to start writing a new log file */
   void new_file();
 
@@ -410,6 +416,16 @@ public:
                  ulonglong *decrease_log_space);
   int purge_logs_before_date(time_t purge_time);
   int purge_first_log(Relay_log_info* rli, bool included);
+  int set_purge_index_file_name(const char *base_file_name);
+  int open_purge_index_file(bool destroy);
+  bool is_inited_purge_index_file();
+  int close_purge_index_file();
+  int clean_purge_index_file();
+  int sync_purge_index_file();
+  int register_purge_index_entry(const char* entry);
+  int register_create_index_entry(const char* entry);
+  int purge_index_entry(THD *thd, ulonglong *decrease_log_space,
+                        bool need_mutex);
   bool reset_logs(THD* thd);
   void close(uint exiting);
 
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 3a54717a45f..d1f78f4c49a 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -2139,8 +2139,8 @@ void Query_log_event::pack_info(Protocol *protocol)
 /**
   Utility function for the next method (Query_log_event::write()) .
 */
-static void write_str_with_code_and_len(char **dst, const char *src,
-                                        int len, uint code)
+static void write_str_with_code_and_len(uchar **dst, const char *src,
+                                        uint len, uint code)
 {
   /*
     only 1 byte to store the length of catalog, so it should not
@@ -2235,7 +2235,7 @@ bool Query_log_event::write(IO_CACHE* file)
   }
   if (catalog_len) // i.e. this var is inited (false for 4.0 events)
   {
-    write_str_with_code_and_len((char **)(&start),
+    write_str_with_code_and_len(&start,
                                 catalog, catalog_len, Q_CATALOG_NZ_CODE);
     /*
       In 5.0.x where x<4 masters we used to store the end zero here. This was
@@ -2273,7 +2273,7 @@ bool Query_log_event::write(IO_CACHE* file)
   {
     /* In the TZ sys table, column Name is of length 64 so this should be ok */
     DBUG_ASSERT(time_zone_len <= MAX_TIME_ZONE_NAME_LENGTH);
-    write_str_with_code_and_len((char **)(&start),
+    write_str_with_code_and_len(&start,
                                 time_zone_str, time_zone_len, Q_TIME_ZONE_CODE);
   }
   if (lc_time_names_number)
@@ -4543,6 +4543,7 @@ int Load_log_event::do_apply_event(NET* net, Relay_log_info const *rli,
     as the present method does not call mysql_parse().
   */
   lex_start(thd);
+  thd->lex->local_file= local_fname;
   mysql_reset_thd_for_next_command(thd);
 
   if (!use_rli_only_for_errors)
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 5916cace54e..79d930cafe5 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -3970,7 +3970,7 @@ a file name for --log-bin-index option", opt_binlog_index_name);
       my_free(opt_bin_logname, MYF(MY_ALLOW_ZERO_PTR));
       opt_bin_logname=my_strdup(buf, MYF(0));
     }
-    if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln))
+    if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln, TRUE))
     {
       unireg_abort(1);
     }
@@ -4134,7 +4134,7 @@ a file name for --log-bin-index option", opt_binlog_index_name);
   }
 
   if (opt_bin_log && mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0,
-                                        WRITE_CACHE, 0, max_binlog_size, 0))
+                                        WRITE_CACHE, 0, max_binlog_size, 0, TRUE))
     unireg_abort(1);
 
 #ifdef HAVE_REPLICATION
@@ -5983,7 +5983,8 @@ Disable with --skip-super-large-pages.",
 #endif
   {"init-rpl-role", OPT_INIT_RPL_ROLE, "Set the replication role.", 0, 0, 0,
    GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
-  {"init-slave", OPT_INIT_SLAVE, "Command(s) that are executed when a slave connects to this master",
+  {"init-slave", OPT_INIT_SLAVE, "Command(s) that are executed by a slave server \
+each time the SQL thread starts.",
    (uchar**) &opt_init_slave, (uchar**) &opt_init_slave, 0, GET_STR_ALLOC,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"language", 'L',
diff --git a/sql/rpl_rli.cc b/sql/rpl_rli.cc
index a1403d2ff71..269ae0e6d68 100644
--- a/sql/rpl_rli.cc
+++ b/sql/rpl_rli.cc
@@ -183,10 +183,10 @@ a file name for --relay-log-index option", opt_relaylog_index_name);
       note, that if open() fails, we'll still have index file open
       but a destructor will take care of that
     */
-    if (rli->relay_log.open_index_file(opt_relaylog_index_name, ln) ||
+    if (rli->relay_log.open_index_file(opt_relaylog_index_name, ln, TRUE) ||
         rli->relay_log.open(ln, LOG_BIN, 0, SEQ_READ_APPEND, 0,
                             (max_relay_log_size ? max_relay_log_size :
-                            max_binlog_size), 1))
+                            max_binlog_size), 1, TRUE))
     {
       pthread_mutex_unlock(&rli->data_lock);
       sql_print_error("Failed in open_log() called from init_relay_log_info()");
diff --git a/sql/sp.cc b/sql/sp.cc
index b5f4aec4a61..28ffd5bb658 100644
--- a/sql/sp.cc
+++ b/sql/sp.cc
@@ -908,6 +908,7 @@ sp_create_routine(THD *thd, int type, sp_head *sp)
   DBUG_PRINT("enter", ("type: %d  name: %.*s",type, (int) sp->m_name.length,
                        sp->m_name.str));
   String retstr(64);
+  retstr.set_charset(system_charset_info);
 
   DBUG_ASSERT(type == TYPE_ENUM_PROCEDURE ||
               type == TYPE_ENUM_FUNCTION);
@@ -1411,6 +1412,7 @@ sp_find_routine(THD *thd, int type, sp_name *name, sp_cache **cp,
       64 -- size of "returns" column of mysql.proc.
     */
     String retstr(64);
+    retstr.set_charset(sp->get_creation_ctx()->get_client_cs());
 
     DBUG_PRINT("info", ("found: 0x%lx", (ulong)sp));
     if (sp->m_first_free_instance)
diff --git a/sql/sql_acl.cc b/sql/sql_acl.cc
index 8eb429e9ffc..4c24ef1dedd 100644
--- a/sql/sql_acl.cc
+++ b/sql/sql_acl.cc
@@ -3381,7 +3381,7 @@ bool mysql_routine_grant(THD *thd, TABLE_LIST *table_list, bool is_proc,
 
   if (write_to_binlog)
   {
-    write_bin_log(thd, TRUE, thd->query(), thd->query_length());
+    write_bin_log(thd, FALSE, thd->query(), thd->query_length());
   }
 
   rw_unlock(&LOCK_grant);
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index a285f63dcb7..56535f8c325 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -5693,7 +5693,8 @@ find_field_in_view(THD *thd, TABLE_LIST *table_list,
     if (!my_strcasecmp(system_charset_info, field_it.name(), name))
     {
       // in PS use own arena or data will be freed after prepare
-      if (register_tree_change && thd->stmt_arena->is_stmt_prepare_or_first_sp_execute())
+      if (register_tree_change &&
+          thd->stmt_arena->is_stmt_prepare_or_first_stmt_execute())
         arena= thd->activate_stmt_arena_if_needed(&backup);
       /*
         create_item() may, or may not create a new Item, depending on
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 01ac3c12641..2a77d8de7cd 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -581,6 +581,8 @@ public:
   { return state == INITIALIZED_FOR_SP; }
   inline bool is_stmt_prepare_or_first_sp_execute() const
   { return (int)state < (int)PREPARED; }
+  inline bool is_stmt_prepare_or_first_stmt_execute() const
+  { return (int)state <= (int)PREPARED; }
   inline bool is_first_stmt_execute() const { return state == PREPARED; }
   inline bool is_stmt_execute() const
   { return state == PREPARED || state == EXECUTED; }
diff --git a/sql/sql_crypt.cc b/sql/sql_crypt.cc
index c4f93cc2a33..3d7d248782b 100644
--- a/sql/sql_crypt.cc
+++ b/sql/sql_crypt.cc
@@ -28,14 +28,7 @@
 
 #include "mysql_priv.h"
 
-SQL_CRYPT::SQL_CRYPT(const char *password, uint length)
-{
-  ulong rand_nr[2];
-  hash_password(rand_nr,password, length);
-  crypt_init(rand_nr);
-}
-
-void SQL_CRYPT::crypt_init(ulong *rand_nr)
+void SQL_CRYPT::init(ulong *rand_nr)
 {
   uint i;
   randominit(&rand,rand_nr[0],rand_nr[1]);
diff --git a/sql/sql_crypt.h b/sql/sql_crypt.h
index 8d5a761cbdf..dd1cba9ee0c 100644
--- a/sql/sql_crypt.h
+++ b/sql/sql_crypt.h
@@ -26,15 +26,15 @@ class SQL_CRYPT :public Sql_alloc
   struct rand_struct rand,org_rand;
   char decode_buff[256],encode_buff[256];
   uint shift;
-  void crypt_init(ulong *seed);
  public:
-  SQL_CRYPT(const char *seed, uint length);
+  SQL_CRYPT() {}
   SQL_CRYPT(ulong *seed)
   {
-    crypt_init(seed);
+    init(seed);
   }
   ~SQL_CRYPT() {}
-  void init() { shift=0; rand=org_rand; }
+  void init(ulong *seed);
+  void reinit() { shift=0; rand=org_rand; }
   void encode(char *str, uint length);
   void decode(char *str, uint length);
 };
diff --git a/sql/sql_db.cc b/sql/sql_db.cc
index 3198791d5d1..b0f473aa211 100644
--- a/sql/sql_db.cc
+++ b/sql/sql_db.cc
@@ -696,6 +696,7 @@ int mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create_info,
       file.  In this case it's best to just continue as if nothing has
       happened.  (This is a very unlikely senario)
     */
+    thd->clear_error();
   }
 
 not_silent:
@@ -811,9 +812,9 @@ bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create_info)
 
   if (mysql_bin_log.is_open())
   {
-    int errcode= query_error_code(thd, TRUE);
+    thd->clear_error();
     Query_log_event qinfo(thd, thd->query(), thd->query_length(), 0,
-			  /* suppress_use */ TRUE, errcode);
+			  /* suppress_use */ TRUE, 0);
 
     /*
       Write should use the database being created as the "current
@@ -823,7 +824,6 @@ bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create_info)
     qinfo.db     = db;
     qinfo.db_len = strlen(db);
 
-    thd->clear_error();
     /* These DDL methods and logging protected with LOCK_mysql_create_db */
     mysql_bin_log.write(&qinfo);
   }
@@ -963,9 +963,9 @@ bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent)
     }
     if (mysql_bin_log.is_open())
     {
-      int errcode= query_error_code(thd, TRUE);
+      thd->clear_error();
       Query_log_event qinfo(thd, query, query_length, 0, 
-			    /* suppress_use */ TRUE, errcode);
+			    /* suppress_use */ TRUE, 0);
       /*
         Write should use the database being created as the "current
         database" and not the threads current database, which is the
@@ -974,7 +974,6 @@ bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent)
       qinfo.db     = db;
       qinfo.db_len = strlen(db);
 
-      thd->clear_error();
       /* These DDL methods and logging protected with LOCK_mysql_create_db */
       mysql_bin_log.write(&qinfo);
     }
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 18c79f6827d..082ef0006cf 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -5967,6 +5967,7 @@ inline void add_cond_and_fix(Item **e1, Item *e2)
     {
       *e1= res;
       res->quick_fix_field();
+      res->update_used_tables();
     }
   }
   else
@@ -7633,7 +7634,7 @@ static bool check_simple_equality(Item *left_item, Item *right_item,
           already contains a constant and its value is  not equal to
           the value of const_item.
         */
-        item_equal->add(const_item);
+        item_equal->add(const_item, field_item);
       }
       else
       {
@@ -13600,7 +13601,7 @@ check_reverse_order:
 	select->quick=tmp;
       }
     }
-    else if (tab->type != JT_NEXT && 
+    else if (tab->type != JT_NEXT && tab->type != JT_REF_OR_NULL &&
              tab->ref.key >= 0 && tab->ref.key_parts <= used_key_parts)
     {
       /*
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index b9f5015f8f0..243e1ecf00b 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -641,7 +641,7 @@ mysqld_show_create(THD *thd, TABLE_LIST *table_list)
     thd->push_internal_handler(&view_error_suppressor);
     bool error= open_normal_and_derived_tables(thd, table_list, 0);
     thd->pop_internal_handler();
-    if (error && thd->is_error())
+    if (error && (thd->killed || thd->is_error()))
       DBUG_RETURN(TRUE);
   }
 
diff --git a/storage/ibmdb2i/db2i_constraints.cc b/storage/ibmdb2i/db2i_constraints.cc
index 9a96eda1173..1fde0dd3d14 100644
--- a/storage/ibmdb2i/db2i_constraints.cc
+++ b/storage/ibmdb2i/db2i_constraints.cc
@@ -329,7 +329,7 @@ char* ha_ibmdb2i::get_foreign_key_create_info(void)
 
        /* Process the constraint name.                                           */
 
-        info.strncat(STRING_WITH_LEN(" CONSTRAINT "));
+        info.strncat(STRING_WITH_LEN(",\n  CONSTRAINT "));
         convNameForCreateInfo(thd, info,
              FKCstDef->CstName.Name, FKCstDef->CstName.Len);
  
@@ -398,7 +398,6 @@ char* ha_ibmdb2i::get_foreign_key_create_info(void)
 
       if ((i+1) < cstCnt) 
       { 
-        info.strcat(',');
         tempPtr = (char*)cstHdr + cstHdr->CstLen;
         cstHdr = (constraint_hdr_t*)(tempPtr);
       }
@@ -671,28 +670,3 @@ uint ha_ibmdb2i::referenced_by_foreign_key(void)
   }
   DBUG_RETURN(count);
 }
-
-
-bool ha_ibmdb2i::check_if_incompatible_data(HA_CREATE_INFO *info,
-                                         uint table_changes)
-{
-  DBUG_ENTER("ha_ibmdb2i::check_if_incompatible_data");
-  uint i;
-  /* Check that auto_increment value and field definitions were
-     not changed. */
-  if ((info->used_fields & HA_CREATE_USED_AUTO &&
-       info->auto_increment_value != 0) ||
-       table_changes != IS_EQUAL_YES)
-    DBUG_RETURN(COMPATIBLE_DATA_NO);
-  /* Check if any fields were renamed. */
-  for (i= 0; i < table->s->fields; i++)
-  {
-   Field *field= table->field[i];
-   if (field->flags & FIELD_IS_RENAMED)
-    {
-      DBUG_PRINT("info", ("Field has been renamed, copy table"));
-      DBUG_RETURN(COMPATIBLE_DATA_NO);
-    }
-  }
-  DBUG_RETURN(COMPATIBLE_DATA_YES);
-}
diff --git a/storage/ibmdb2i/ha_ibmdb2i.cc b/storage/ibmdb2i/ha_ibmdb2i.cc
index 0fc2d1e83dc..39096be7848 100644
--- a/storage/ibmdb2i/ha_ibmdb2i.cc
+++ b/storage/ibmdb2i/ha_ibmdb2i.cc
@@ -284,7 +284,7 @@ static int ibmdb2i_init_func(void *p)
   was_ILE_inited = false;
   ibmdb2i_hton= (handlerton *)p;
   VOID(pthread_mutex_init(&ibmdb2i_mutex,MY_MUTEX_INIT_FAST));
-  (void) hash_init(&ibmdb2i_open_tables,system_charset_info,32,0,0,
+  (void) hash_init(&ibmdb2i_open_tables,table_alias_charset,32,0,0,
                    (hash_get_key) ibmdb2i_get_key,0,0);
 
   ibmdb2i_hton->state=   SHOW_OPTION_YES;
diff --git a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc
index 1c3a86fb2b3..57d4d8bf16e 100644
--- a/storage/innobase/handler/ha_innodb.cc
+++ b/storage/innobase/handler/ha_innodb.cc
@@ -110,9 +110,6 @@ extern "C" {
 # ifndef MYSQL_PLUGIN_IMPORT
 #  define MYSQL_PLUGIN_IMPORT /* nothing */
 # endif /* MYSQL_PLUGIN_IMPORT */
-/* This is needed because of Bug #3596. Let us hope that pthread_mutex_t
-is defined the same in both builds: the MySQL server and the InnoDB plugin. */
-extern MYSQL_PLUGIN_IMPORT pthread_mutex_t LOCK_thread_count;
 
 #if MYSQL_VERSION_ID < 50124
 /* this is defined in mysql_priv.h inside #ifdef MYSQL_SERVER