diff --git a/client/mysqltest.cc b/client/mysqltest.cc
index b9535ba6b05..af2749e3191 100644
--- a/client/mysqltest.cc
+++ b/client/mysqltest.cc
@@ -1165,6 +1165,7 @@ void free_used_memory()
     mysql_server_end();
 
   /* Don't use DBUG after mysql_server_end() */
+  DBUG_VIOLATION_HELPER_LEAVE;
   return;
 }
 
@@ -2487,7 +2488,7 @@ void do_source(struct st_command *command)
   }
 
   dynstr_free(&ds_filename);
-  return;
+  DBUG_VOID_RETURN;
 }
 
 
@@ -7507,6 +7508,8 @@ static void init_signal_handling(void)
 #endif
   sigaction(SIGILL, &sa, NULL);
   sigaction(SIGFPE, &sa, NULL);
+
+  DBUG_VOID_RETURN;
 }
 
 #endif /* !__WIN__ */
@@ -8121,6 +8124,8 @@ void do_get_replace_column(struct st_command *command)
   }
   my_free(start, MYF(0));
   command->last_argument= command->end;
+
+  DBUG_VOID_RETURN;
 }
 
 
diff --git a/include/my_dbug.h b/include/my_dbug.h
index a77e439b5db..474a46f29dd 100644
--- a/include/my_dbug.h
+++ b/include/my_dbug.h
@@ -16,6 +16,29 @@
 #ifndef _dbug_h
 #define _dbug_h
 
+#if defined(__cplusplus) && !defined(DBUG_OFF)
+class Dbug_violation_helper
+{
+public:
+  inline Dbug_violation_helper() :
+    _entered(TRUE)
+  { }
+
+  inline ~Dbug_violation_helper()
+  {
+    assert(!_entered);
+  }
+
+  inline void leave()
+  {
+    _entered= FALSE;
+  }
+
+private:
+  bool _entered;
+};
+#endif /* C++ */
+
 #ifdef	__cplusplus
 extern "C" {
 #endif
@@ -47,11 +70,31 @@ extern	void _db_lock_file_(void);
 extern	void _db_unlock_file_(void);
 extern FILE *_db_fp_(void);
 
-#define DBUG_ENTER(a) const char *_db_func_, *_db_file_; uint _db_level_; \
-	char **_db_framep_; \
-	_db_enter_ (a,__FILE__,__LINE__,&_db_func_,&_db_file_,&_db_level_, \
-		    &_db_framep_)
+#ifdef __cplusplus
+
+#define DBUG_ENTER(a) \
+        const char *_db_func_, *_db_file_; \
+        uint _db_level_; \
+        char **_db_framep_; \
+        Dbug_violation_helper dbug_violation_helper; \
+        _db_enter_ (a, __FILE__, __LINE__, &_db_func_, &_db_file_, \
+                    &_db_level_, &_db_framep_)
+#define DBUG_VIOLATION_HELPER_LEAVE dbug_violation_helper.leave()
+
+#else /* C */
+
+#define DBUG_ENTER(a) \
+        const char *_db_func_, *_db_file_; \
+        uint _db_level_; \
+        char **_db_framep_; \
+        _db_enter_ (a, __FILE__, __LINE__, &_db_func_, &_db_file_, \
+                    &_db_level_, &_db_framep_)
+#define DBUG_VIOLATION_HELPER_LEAVE do { } while(0)
+
+#endif /* C++ */
+
 #define DBUG_LEAVE \
+        DBUG_VIOLATION_HELPER_LEAVE; \
 	_db_return_ (__LINE__, &_db_func_, &_db_file_, &_db_level_)
 #define DBUG_RETURN(a1) do {DBUG_LEAVE; return(a1);} while(0)
 #define DBUG_VOID_RETURN do {DBUG_LEAVE; return;} while(0)
@@ -85,6 +128,7 @@ extern FILE *_db_fp_(void);
 
 #define DBUG_ENTER(a1)
 #define DBUG_LEAVE
+#define DBUG_VIOLATION_HELPER_LEAVE
 #define DBUG_RETURN(a1)             do { return(a1); } while(0)
 #define DBUG_VOID_RETURN            do { return; } while(0)
 #define DBUG_EXECUTE(keyword,a1)    do { } while(0)
diff --git a/mysql-test/extra/rpl_tests/rpl_auto_increment.test b/mysql-test/extra/rpl_tests/rpl_auto_increment.test
index 24448a38408..abf3b4ec676 100644
--- a/mysql-test/extra/rpl_tests/rpl_auto_increment.test
+++ b/mysql-test/extra/rpl_tests/rpl_auto_increment.test
@@ -163,5 +163,81 @@ show create table t1;
 connection master;
 drop table t1;
 
-# End cleanup
+#
+# BUG#45999 Row based replication fails when auto_increment field = 0.  
+# Store engine of Slaves auto-generates new sequence numbers for
+# auto_increment fields if the values of them are 0. There is an inconsistency
+# between slave and master. When MODE_NO_AUTO_VALUE_ON_ZERO are masters treat 
+#
+source include/master-slave-reset.inc;
+
+connection master;
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+
+eval CREATE TABLE t1 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=$engine_type;
+eval CREATE TABLE t2 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=$engine_type2;
+SET SQL_MODE='';
+# Value of the id will be 1;
+INSERT INTO t1 VALUES(NULL);
+INSERT INTO t2 VALUES(NULL);
+SELECT * FROM t1;
+SELECT * FROM t2;
+# Value of the id will be 2;
+INSERT INTO t1 VALUES();
+INSERT INTO t2 VALUES();
+SELECT * FROM t1;
+SELECT * FROM t2;
+# Value of the id will be 3. The master treats 0 as NULL or empty because
+# NO_AUTO_VALUE_ON_ZERO is not assign to SQL_MODE.
+INSERT INTO t1 VALUES(0);
+INSERT INTO t2 VALUES(0);
+SELECT * FROM t1;
+SELECT * FROM t2;
+
+SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
+# Value of the id will be 0. The master does not treat 0 as NULL or empty
+# because NO_AUTO_VALUE_ON_ZERO has assigned to SQL_MODE.
+INSERT INTO t1 VALUES(0);
+INSERT INTO t2 VALUES(0);
+SELECT * FROM t1;
+SELECT * FROM t2;
+
+INSERT INTO t1 VALUES(4);
+INSERT INTO t2 VALUES(4);
+FLUSH LOGS;
+sync_slave_with_master;
+
+let $diff_table_1= master:test.t1;
+let $diff_table_2= slave:test.t1;
+source include/diff_tables.inc;
+
+let $diff_table_1= master:test.t2;
+let $diff_table_2= slave:test.t2;
+source include/diff_tables.inc;
+
+connection master;
+DROP TABLE t1;
+DROP TABLE t2;
+sync_slave_with_master;
+
+connection master;
+let $MYSQLD_DATADIR= `SELECT @@DATADIR`;
+--exec $MYSQL_BINLOG $MYSQLD_DATADIR/master-bin.000001 | $MYSQL test
+sync_slave_with_master;
+
+let $diff_table_1= master:test.t1;
+let $diff_table_2= slave:test.t1;
+source include/diff_tables.inc;
+
+let $diff_table_1= master:test.t2;
+let $diff_table_2= slave:test.t2;
+source include/diff_tables.inc;
+
+# End cleanup
+DROP TABLE t1;
+DROP TABLE t2;
+SET SQL_MODE='';
 sync_slave_with_master;
diff --git a/mysql-test/r/archive.result b/mysql-test/r/archive.result
index 8c26ea1ff82..e865d775c6a 100644
--- a/mysql-test/r/archive.result
+++ b/mysql-test/r/archive.result
@@ -12695,3 +12695,25 @@ a	b
 1	NULL
 2	NULL
 DROP TABLE t1;
+CREATE TABLE t1(a INT, b BLOB) ENGINE=archive;
+SELECT DATA_LENGTH, AVG_ROW_LENGTH FROM
+INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
+DATA_LENGTH	AVG_ROW_LENGTH
+8666	15
+INSERT INTO t1 VALUES(1, 'sampleblob1'),(2, 'sampleblob2');
+SELECT DATA_LENGTH, AVG_ROW_LENGTH FROM
+INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
+DATA_LENGTH	AVG_ROW_LENGTH
+8700	4350
+DROP TABLE t1;
+SET @save_join_buffer_size= @@join_buffer_size;
+SET @@join_buffer_size= 8228;
+CREATE TABLE t1(a CHAR(255)) ENGINE=archive;
+INSERT INTO t1 VALUES('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
+('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
+('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
+SELECT COUNT(t1.a) FROM t1, t1 a, t1 b, t1 c, t1 d, t1 e;
+COUNT(t1.a)
+729
+DROP TABLE t1;
+SET @@join_buffer_size= @save_join_buffer_size;
diff --git a/mysql-test/r/distinct.result b/mysql-test/r/distinct.result
index e0324af8cfd..b1cb70fa43c 100644
--- a/mysql-test/r/distinct.result
+++ b/mysql-test/r/distinct.result
@@ -763,4 +763,34 @@ a	b	d	c
 1	2	0	2
 1	2	0	3
 DROP TABLE t1;
+#
+# Bug #46159: simple query that never returns
+#
+SET @old_max_heap_table_size = @@max_heap_table_size;
+SET @@max_heap_table_size = 16384;
+SET @old_sort_buffer_size = @@sort_buffer_size;
+SET @@sort_buffer_size = 32804;
+CREATE TABLE t1(c1 int, c2 VARCHAR(20));
+INSERT INTO t1 VALUES (1, '1'), (1, '1'), (2, '2'), (3, '1'), (3, '1'), (4, '4');
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+SELECT c1, c2, COUNT(*) FROM t1 GROUP BY c1 LIMIT 4;
+c1	c2	COUNT(*)
+1	1	2
+2	2	1
+3	1	2
+4	4	1
+SELECT DISTINCT c2 FROM t1 GROUP BY c1 HAVING COUNT(*) > 1;
+c2
+1
+5
+DROP TABLE t1;
+SET @@sort_buffer_size = @old_sort_buffer_size;
+SET @@max_heap_table_size = @old_max_heap_table_size;
 End of 5.1 tests
diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index a0c3935fde0..2a2fe50ad0f 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -2534,6 +2534,15 @@ SELECT LOAD_FILE(a) FROM t1;
 LOAD_FILE(a)
 NULL
 DROP TABLE t1;
+CREATE TABLE t1 (f2 VARCHAR(20));
+CREATE TABLE t2 (f2 VARCHAR(20));
+INSERT INTO t1 VALUES ('MIN'),('MAX');
+INSERT INTO t2 VALUES ('LOAD');
+SELECT CONCAT_WS('_', (SELECT t2.f2 FROM t2), t1.f2) AS concat_name FROM t1;
+concat_name
+LOAD_MIN
+LOAD_MAX
+DROP TABLE t1, t2;
 End of 5.0 tests
 drop table if exists t1;
 create table t1(f1 tinyint default null)engine=myisam;
diff --git a/mysql-test/r/lowercase_mixed_tmpdir_innodb.result b/mysql-test/r/lowercase_mixed_tmpdir_innodb.result
new file mode 100755
index 00000000000..a478b49cfda
--- /dev/null
+++ b/mysql-test/r/lowercase_mixed_tmpdir_innodb.result
@@ -0,0 +1,6 @@
+drop table if exists t1;
+create table t1 (id int) engine=InnoDB;
+insert into t1 values (1);
+create temporary table t2 engine=InnoDB select * from t1;
+drop temporary table t2;
+drop table t1;
diff --git a/mysql-test/r/partition_innodb.result b/mysql-test/r/partition_innodb.result
index 9c5675c0c75..b8cfa25349d 100644
--- a/mysql-test/r/partition_innodb.result
+++ b/mysql-test/r/partition_innodb.result
@@ -270,3 +270,7 @@ SUBPARTITION BY KEY (char_column)
 SUBPARTITIONS 2
 (PARTITION p1 VALUES LESS THAN (5) ENGINE = MyISAM) */
 drop table t1;
+CREATE TABLE t1 (a INT) ENGINE=InnoDB
+PARTITION BY list(a) (PARTITION p1 VALUES IN (1));
+CREATE INDEX i1 ON t1 (a);
+DROP TABLE t1;
diff --git a/mysql-test/r/subselect4.result b/mysql-test/r/subselect4.result
new file mode 100644
index 00000000000..68577cb2a4c
--- /dev/null
+++ b/mysql-test/r/subselect4.result
@@ -0,0 +1,30 @@
+#
+# Bug #46791: Assertion failed:(table->key_read==0),function unknown
+#    function,file sql_base.cc
+#
+CREATE TABLE t1 (a INT, b INT, KEY(a));
+INSERT INTO t1 VALUES (1,1),(2,2);
+CREATE TABLE t2 LIKE t1;
+INSERT INTO t2 VALUES (1,1),(2,2);
+CREATE TABLE t3 LIKE t1;
+# should have 1 impossible where and 2 dependent subqueries
+EXPLAIN
+SELECT 1 FROM t1
+WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
+ORDER BY count(*);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	NULL	a	5	NULL	2	Using index; Using temporary
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
+3	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+# should not crash the next statement
+SELECT 1 FROM t1
+WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
+ORDER BY count(*);
+1
+1
+# should not crash: the crash is caused by the previous statement
+SELECT 1;
+1
+1
+DROP TABLE t1,t2,t3;
+End of 5.0 tests.
diff --git a/mysql-test/r/warnings.result b/mysql-test/r/warnings.result
index 2e393aea9e4..8a87852d582 100644
--- a/mysql-test/r/warnings.result
+++ b/mysql-test/r/warnings.result
@@ -313,4 +313,9 @@ ERROR 22001: Data too long for column 'c_tinytext' at row 1
 insert into t2 values(@q);
 ERROR 22001: Data too long for column 'c_tinyblob' at row 1
 drop table t1, t2;
+DROP TABLE t1;
+ERROR 42S02: Unknown table 't1'
+SHOW ERRORS;
+Level	Code	Message
+Error	1051	Unknown table 't1'
 End of 5.0 tests
diff --git a/mysql-test/suite/rpl/r/rpl_auto_increment.result b/mysql-test/suite/rpl/r/rpl_auto_increment.result
index 2a4c3a09361..fdd94264041 100644
--- a/mysql-test/suite/rpl/r/rpl_auto_increment.result
+++ b/mysql-test/suite/rpl/r/rpl_auto_increment.result
@@ -244,3 +244,71 @@ t1	CREATE TABLE `t1` (
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
 drop table t1;
+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;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=innodb;
+CREATE TABLE t2 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=myisam;
+SET SQL_MODE='';
+INSERT INTO t1 VALUES(NULL);
+INSERT INTO t2 VALUES(NULL);
+SELECT * FROM t1;
+id
+1
+SELECT * FROM t2;
+id
+1
+INSERT INTO t1 VALUES();
+INSERT INTO t2 VALUES();
+SELECT * FROM t1;
+id
+1
+2
+SELECT * FROM t2;
+id
+1
+2
+INSERT INTO t1 VALUES(0);
+INSERT INTO t2 VALUES(0);
+SELECT * FROM t1;
+id
+1
+2
+3
+SELECT * FROM t2;
+id
+1
+2
+3
+SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
+INSERT INTO t1 VALUES(0);
+INSERT INTO t2 VALUES(0);
+SELECT * FROM t1;
+id
+0
+1
+2
+3
+SELECT * FROM t2;
+id
+0
+1
+2
+3
+INSERT INTO t1 VALUES(4);
+INSERT INTO t2 VALUES(4);
+FLUSH LOGS;
+Comparing tables master:test.t1 and slave:test.t1
+Comparing tables master:test.t2 and slave:test.t2
+DROP TABLE t1;
+DROP TABLE t2;
+Comparing tables master:test.t1 and slave:test.t1
+Comparing tables master:test.t2 and slave:test.t2
+DROP TABLE t1;
+DROP TABLE t2;
+SET SQL_MODE='';
diff --git a/mysql-test/suite/rpl/t/rpl_do_grant.test b/mysql-test/suite/rpl/t/rpl_do_grant.test
index 806de780086..fc793c03649 100644
--- a/mysql-test/suite/rpl/t/rpl_do_grant.test
+++ b/mysql-test/suite/rpl/t/rpl_do_grant.test
@@ -129,6 +129,9 @@ CREATE DATABASE  bug42217_db;
 GRANT CREATE ROUTINE ON bug42217_db.* TO 'create_rout_db'@'localhost'
         IDENTIFIED BY 'create_rout_db' WITH GRANT OPTION;
 
+-- sync_slave_with_master
+-- connection master
+
 connect (create_rout_db_master, localhost, create_rout_db, create_rout_db, bug42217_db,$MASTER_MYPORT,);
 connect (create_rout_db_slave, localhost, create_rout_db, create_rout_db, bug42217_db, $SLAVE_MYPORT,);
 
diff --git a/mysql-test/suite/rpl/t/rpl_drop_temp.test b/mysql-test/suite/rpl/t/rpl_drop_temp.test
index df162d3b244..7827e16e45f 100644
--- a/mysql-test/suite/rpl/t/rpl_drop_temp.test
+++ b/mysql-test/suite/rpl/t/rpl_drop_temp.test
@@ -23,6 +23,8 @@ disconnect con_temp;
 --source include/wait_until_disconnected.inc
 
 connection master;
+-- let $wait_binlog_event= DROP
+-- source include/wait_for_binlog_event.inc
 sync_slave_with_master;
 
 connection slave;
diff --git a/mysql-test/t/archive.test b/mysql-test/t/archive.test
index 7139d95ab49..aad3d19455d 100644
--- a/mysql-test/t/archive.test
+++ b/mysql-test/t/archive.test
@@ -1599,3 +1599,27 @@ INSERT INTO t1 VALUES (NULL, NULL),(NULL, NULL);
 FLUSH TABLE t1;
 SELECT * FROM t1 ORDER BY a;
 DROP TABLE t1;
+
+#
+# BUG#29203 - archive tables have weird values in show table status
+#
+CREATE TABLE t1(a INT, b BLOB) ENGINE=archive;
+SELECT DATA_LENGTH, AVG_ROW_LENGTH FROM
+  INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
+INSERT INTO t1 VALUES(1, 'sampleblob1'),(2, 'sampleblob2');
+SELECT DATA_LENGTH, AVG_ROW_LENGTH FROM
+  INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
+DROP TABLE t1;
+
+#
+# BUG#46961 - archive engine loses rows during self joining select!
+#
+SET @save_join_buffer_size= @@join_buffer_size;
+SET @@join_buffer_size= 8228;
+CREATE TABLE t1(a CHAR(255)) ENGINE=archive;
+INSERT INTO t1 VALUES('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
+                     ('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'),
+                     ('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
+SELECT COUNT(t1.a) FROM t1, t1 a, t1 b, t1 c, t1 d, t1 e;
+DROP TABLE t1;
+SET @@join_buffer_size= @save_join_buffer_size;
diff --git a/mysql-test/t/distinct.test b/mysql-test/t/distinct.test
index a77d1136840..bf4c23562cf 100644
--- a/mysql-test/t/distinct.test
+++ b/mysql-test/t/distinct.test
@@ -573,4 +573,44 @@ SELECT DISTINCT a, b, d, c FROM t1;
 
 DROP TABLE t1;
 
+--echo #
+--echo # Bug #46159: simple query that never returns
+--echo #
+
+# Set max_heap_table_size to the minimum value so that GROUP BY table in the
+# SELECT query below gets converted to MyISAM
+SET @old_max_heap_table_size = @@max_heap_table_size;
+SET @@max_heap_table_size = 16384;
+
+# Set sort_buffer_size to the mininum value so that remove_duplicates() calls
+# remove_dup_with_compare()
+SET @old_sort_buffer_size = @@sort_buffer_size;
+SET @@sort_buffer_size = 32804;
+
+CREATE TABLE t1(c1 int, c2 VARCHAR(20));
+INSERT INTO t1 VALUES (1, '1'), (1, '1'), (2, '2'), (3, '1'), (3, '1'), (4, '4');
+# Now we just need to pad the table with random data so we have enough unique
+# values to force conversion of the GROUP BY table to MyISAM
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+INSERT INTO t1 SELECT 5 + 10000 * RAND(), '5' FROM t1;
+
+# First rows of the GROUP BY table that will be processed by 
+# remove_dup_with_compare()
+SELECT c1, c2, COUNT(*) FROM t1 GROUP BY c1 LIMIT 4;
+
+# The actual test case
+SELECT DISTINCT c2 FROM t1 GROUP BY c1 HAVING COUNT(*) > 1;
+
+# Cleanup
+
+DROP TABLE t1;
+SET @@sort_buffer_size = @old_sort_buffer_size;
+SET @@max_heap_table_size = @old_max_heap_table_size;
+
 --echo End of 5.1 tests
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index 7cb7f7f72d2..66b9eabd385 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -1291,6 +1291,19 @@ INSERT INTO t1 VALUES ('aaaaaaaa');
 SELECT LOAD_FILE(a) FROM t1;
 DROP TABLE t1;
 
+#
+# Bug#46815 CONCAT_WS returning wrong data
+#
+CREATE TABLE t1 (f2 VARCHAR(20));
+CREATE TABLE t2 (f2 VARCHAR(20));
+
+INSERT INTO t1 VALUES ('MIN'),('MAX');
+INSERT INTO t2 VALUES ('LOAD');
+
+SELECT CONCAT_WS('_', (SELECT t2.f2 FROM t2), t1.f2) AS concat_name FROM t1;
+
+DROP TABLE t1, t2;
+
 
 --echo End of 5.0 tests
 
diff --git a/mysql-test/t/lowercase_mixed_tmpdir_innodb-master.opt b/mysql-test/t/lowercase_mixed_tmpdir_innodb-master.opt
new file mode 100644
index 00000000000..272f91d629c
--- /dev/null
+++ b/mysql-test/t/lowercase_mixed_tmpdir_innodb-master.opt
@@ -0,0 +1,2 @@
+--lower-case-table-names=2
+--tmpdir=$MYSQLTEST_VARDIR/tmp/MixedCase
diff --git a/mysql-test/t/lowercase_mixed_tmpdir_innodb-master.sh b/mysql-test/t/lowercase_mixed_tmpdir_innodb-master.sh
new file mode 100644
index 00000000000..95c26e3aa02
--- /dev/null
+++ b/mysql-test/t/lowercase_mixed_tmpdir_innodb-master.sh
@@ -0,0 +1,6 @@
+# This test requires a non-lowercase tmpdir directory on a case-sensitive
+# filesystem.
+
+d="$MYSQLTEST_VARDIR/tmp/MixedCase"
+test -d "$d" || mkdir "$d"
+rm -f "$d"/*
diff --git a/mysql-test/t/lowercase_mixed_tmpdir_innodb.test b/mysql-test/t/lowercase_mixed_tmpdir_innodb.test
new file mode 100644
index 00000000000..e3b9b7b2a32
--- /dev/null
+++ b/mysql-test/t/lowercase_mixed_tmpdir_innodb.test
@@ -0,0 +1,12 @@
+--source include/have_lowercase2.inc
+--source include/have_innodb.inc
+
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+create table t1 (id int) engine=InnoDB;
+insert into t1 values (1);
+create temporary table t2 engine=InnoDB select * from t1;
+drop temporary table t2;
+drop table t1;
diff --git a/mysql-test/t/partition_innodb.test b/mysql-test/t/partition_innodb.test
index b29ce289811..aba28b76f01 100644
--- a/mysql-test/t/partition_innodb.test
+++ b/mysql-test/t/partition_innodb.test
@@ -287,3 +287,15 @@ PARTITION BY RANGE (int_column)
   (PARTITION p1 VALUES LESS THAN (5));
 show create table t1;
 drop table t1;
+
+#
+# BUG#46483 - drop table of partitioned table may leave extraneous file
+# Note: was only repeatable with InnoDB plugin
+#
+CREATE TABLE t1 (a INT) ENGINE=InnoDB
+  PARTITION BY list(a) (PARTITION p1 VALUES IN (1));
+CREATE INDEX i1 ON t1 (a);
+DROP TABLE t1;
+let $MYSQLD_DATADIR= `SELECT @@datadir`;
+# Before the fix it should show extra file like #sql-2405_2.par
+--list_files $MYSQLD_DATADIR/test/ *
diff --git a/mysql-test/t/subselect4.test b/mysql-test/t/subselect4.test
new file mode 100644
index 00000000000..ff4cdf3c439
--- /dev/null
+++ b/mysql-test/t/subselect4.test
@@ -0,0 +1,32 @@
+# General purpose bug fix tests go here : subselect.test too large
+
+
+--echo #
+--echo # Bug #46791: Assertion failed:(table->key_read==0),function unknown
+--echo #    function,file sql_base.cc
+--echo #
+
+CREATE TABLE t1 (a INT, b INT, KEY(a));
+INSERT INTO t1 VALUES (1,1),(2,2);
+CREATE TABLE t2 LIKE t1;
+INSERT INTO t2 VALUES (1,1),(2,2);
+CREATE TABLE t3 LIKE t1;
+
+--echo # should have 1 impossible where and 2 dependent subqueries
+EXPLAIN
+SELECT 1 FROM t1
+WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
+ORDER BY count(*);
+
+--echo # should not crash the next statement
+SELECT 1 FROM t1
+WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
+ORDER BY count(*);
+
+--echo # should not crash: the crash is caused by the previous statement
+SELECT 1;
+
+DROP TABLE t1,t2,t3;
+
+
+--echo End of 5.0 tests.
diff --git a/mysql-test/t/warnings.test b/mysql-test/t/warnings.test
index 12421170eba..176f320e390 100644
--- a/mysql-test/t/warnings.test
+++ b/mysql-test/t/warnings.test
@@ -225,4 +225,11 @@ insert into t2 values(@q);
 
 drop table t1, t2;
 
+#
+# Bug#42364 SHOW ERRORS returns empty resultset after dropping non existent table
+#
+--error ER_BAD_TABLE_ERROR
+DROP TABLE t1;
+SHOW ERRORS;
+
 --echo End of 5.0 tests
diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
index 2d232736cf2..5b053ab9cac 100644
--- a/sql/ha_partition.cc
+++ b/sql/ha_partition.cc
@@ -239,6 +239,7 @@ void ha_partition::init_handler_variables()
   m_curr_key_info[0]= NULL;
   m_curr_key_info[1]= NULL;
   is_clone= FALSE,
+  m_part_func_monotonicity_info= NON_MONOTONIC;
   auto_increment_lock= FALSE;
   auto_increment_safe_stmt_log_lock= FALSE;
   /*
@@ -2465,11 +2466,18 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
     }
   }
 
+  /* Initialize the bitmap we use to minimize ha_start_bulk_insert calls */
+  if (bitmap_init(&m_bulk_insert_started, NULL, m_tot_parts + 1, FALSE))
+    DBUG_RETURN(1);
+  bitmap_clear_all(&m_bulk_insert_started);
   /* Initialize the bitmap we use to determine what partitions are used */
   if (!is_clone)
   {
     if (bitmap_init(&(m_part_info->used_partitions), NULL, m_tot_parts, TRUE))
+    {
+      bitmap_free(&m_bulk_insert_started);
       DBUG_RETURN(1);
+    }
     bitmap_set_all(&(m_part_info->used_partitions));
   }
 
@@ -2553,12 +2561,18 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
     calling open on all individual handlers.
   */
   m_handler_status= handler_opened;
+  if (m_part_info->part_expr)
+    m_part_func_monotonicity_info=
+                            m_part_info->part_expr->get_monotonicity_info();
+  else if (m_part_info->list_of_part_fields)
+    m_part_func_monotonicity_info= MONOTONIC_STRICT_INCREASING;
   info(HA_STATUS_VARIABLE | HA_STATUS_CONST);
   DBUG_RETURN(0);
 
 err_handler:
   while (file-- != m_file)
     (*file)->close();
+  bitmap_free(&m_bulk_insert_started);
   if (!is_clone)
     bitmap_free(&(m_part_info->used_partitions));
 
@@ -2606,6 +2620,7 @@ int ha_partition::close(void)
 
   DBUG_ASSERT(table->s == table_share);
   delete_queue(&m_queue);
+  bitmap_free(&m_bulk_insert_started);
   if (!is_clone)
     bitmap_free(&(m_part_info->used_partitions));
   file= m_file;
@@ -3022,6 +3037,8 @@ int ha_partition::write_row(uchar * buf)
   }
   m_last_part= part_id;
   DBUG_PRINT("info", ("Insert in partition %d", part_id));
+  start_part_bulk_insert(part_id);
+
   tmp_disable_binlog(thd); /* Do not replicate the low-level changes. */
   error= m_file[part_id]->ha_write_row(buf);
   if (have_auto_increment && !table->s->next_number_keypart)
@@ -3084,6 +3101,7 @@ int ha_partition::update_row(const uchar *old_data, uchar *new_data)
   }
 
   m_last_part= new_part_id;
+  start_part_bulk_insert(new_part_id);
   if (new_part_id == old_part_id)
   {
     DBUG_PRINT("info", ("Update in partition %d", new_part_id));
@@ -3248,22 +3266,65 @@ int ha_partition::delete_all_rows()
   DESCRIPTION
     rows == 0 means we will probably insert many rows
 */
-
 void ha_partition::start_bulk_insert(ha_rows rows)
 {
-  handler **file;
   DBUG_ENTER("ha_partition::start_bulk_insert");
 
-  rows= rows ? rows/m_tot_parts + 1 : 0;
-  file= m_file;
-  do
-  {
-    (*file)->ha_start_bulk_insert(rows);
-  } while (*(++file));
+  m_bulk_inserted_rows= 0;
+  bitmap_clear_all(&m_bulk_insert_started);
+  /* use the last bit for marking if bulk_insert_started was called */
+  bitmap_set_bit(&m_bulk_insert_started, m_tot_parts);
   DBUG_VOID_RETURN;
 }
 
 
+/*
+  Check if start_bulk_insert has been called for this partition,
+  if not, call it and mark it called
+*/
+void ha_partition::start_part_bulk_insert(uint part_id)
+{
+  if (!bitmap_is_set(&m_bulk_insert_started, part_id) &&
+      bitmap_is_set(&m_bulk_insert_started, m_tot_parts))
+  {
+    m_file[part_id]->ha_start_bulk_insert(guess_bulk_insert_rows());
+    bitmap_set_bit(&m_bulk_insert_started, part_id);
+  }
+  m_bulk_inserted_rows++;
+}
+
+
+/*
+  Try to predict the number of inserts into this partition.
+
+  If less than 10 rows (including 0 which means Unknown)
+    just give that as a guess
+  If monotonic partitioning function was used
+    guess that 50 % of the inserts goes to the first partition
+  For all other cases, guess on equal distribution between the partitions
+*/ 
+ha_rows ha_partition::guess_bulk_insert_rows()
+{
+  DBUG_ENTER("guess_bulk_insert_rows");
+
+  if (estimation_rows_to_insert < 10)
+    DBUG_RETURN(estimation_rows_to_insert);
+
+  /* If first insert/partition and monotonic partition function, guess 50%.  */
+  if (!m_bulk_inserted_rows && 
+      m_part_func_monotonicity_info != NON_MONOTONIC &&
+      m_tot_parts > 1)
+    DBUG_RETURN(estimation_rows_to_insert / 2);
+
+  /* Else guess on equal distribution (+1 is to avoid returning 0/Unknown) */
+  if (m_bulk_inserted_rows < estimation_rows_to_insert)
+    DBUG_RETURN(((estimation_rows_to_insert - m_bulk_inserted_rows)
+                / m_tot_parts) + 1);
+  /* The estimation was wrong, must say 'Unknown' */
+  DBUG_RETURN(0);
+}
+
+
 /*
   Finish a large batch of insert rows
 
@@ -3273,21 +3334,29 @@ void ha_partition::start_bulk_insert(ha_rows rows)
   RETURN VALUE
     >0                      Error code
     0                       Success
+
+  Note: end_bulk_insert can be called without start_bulk_insert
+        being called, see bug¤44108.
+
 */
 
 int ha_partition::end_bulk_insert()
 {
   int error= 0;
-  handler **file;
+  uint i;
   DBUG_ENTER("ha_partition::end_bulk_insert");
 
-  file= m_file;
-  do
+  if (!bitmap_is_set(&m_bulk_insert_started, m_tot_parts))
+    DBUG_RETURN(error);
+
+  for (i= 0; i < m_tot_parts; i++)
   {
     int tmp;
-    if ((tmp= (*file)->ha_end_bulk_insert()))
+    if (bitmap_is_set(&m_bulk_insert_started, i) &&
+        (tmp= m_file[i]->ha_end_bulk_insert()))
       error= tmp;
-  } while (*(++file));
+  }
+  bitmap_clear_all(&m_bulk_insert_started);
   DBUG_RETURN(error);
 }
 
diff --git a/sql/ha_partition.h b/sql/ha_partition.h
index d0301e24a93..f47dfe8f621 100644
--- a/sql/ha_partition.h
+++ b/sql/ha_partition.h
@@ -176,6 +176,11 @@ private:
     This to ensure it will work with statement based replication.
   */
   bool auto_increment_safe_stmt_log_lock;
+  /** For optimizing ha_start_bulk_insert calls */
+  MY_BITMAP m_bulk_insert_started;
+  ha_rows   m_bulk_inserted_rows;
+  /** used for prediction of start_bulk_insert rows */
+  enum_monotonicity_info m_part_func_monotonicity_info;
 public:
   handler *clone(MEM_ROOT *mem_root);
   virtual void set_part_info(partition_info *part_info)
@@ -353,7 +358,6 @@ public:
     Bulk inserts are supported if all underlying handlers support it.
     start_bulk_insert and end_bulk_insert is called before and after a
     number of calls to write_row.
-    Not yet though.
   */
   virtual int write_row(uchar * buf);
   virtual int update_row(const uchar * old_data, uchar * new_data);
@@ -361,6 +365,10 @@ public:
   virtual int delete_all_rows(void);
   virtual void start_bulk_insert(ha_rows rows);
   virtual int end_bulk_insert();
+private:
+  ha_rows guess_bulk_insert_rows();
+  void start_part_bulk_insert(uint part_id);
+public:
 
   virtual bool is_fatal_error(int error, uint flags)
   {
diff --git a/sql/handler.cc b/sql/handler.cc
index e5c64452aaf..a4d88e84f4c 100644
--- a/sql/handler.cc
+++ b/sql/handler.cc
@@ -1885,12 +1885,42 @@ bool ha_flush_logs(handlerton *db_type)
   return FALSE;
 }
 
+
+/**
+  @brief make canonical filename
+
+  @param[in]  file     table handler
+  @param[in]  path     original path
+  @param[out] tmp_path buffer for canonized path
+
+  @details Lower case db name and table name path parts for
+           non file based tables when lower_case_table_names
+           is 2 (store as is, compare in lower case).
+           Filesystem path prefix (mysql_data_home or tmpdir)
+           is left intact.
+
+  @note tmp_path may be left intact if no conversion was
+        performed.
+
+  @retval canonized path
+
+  @todo This may be done more efficiently when table path
+        gets built. Convert this function to something like
+        ASSERT_CANONICAL_FILENAME.
+*/
 const char *get_canonical_filename(handler *file, const char *path,
                                    char *tmp_path)
 {
+  uint i;
   if (lower_case_table_names != 2 || (file->ha_table_flags() & HA_FILE_BASED))
     return path;
 
+  for (i= 0; i <= mysql_tmpdir_list.max; i++)
+  {
+    if (is_prefix(path, mysql_tmpdir_list.list[i]))
+      return path;
+  }
+
   /* Ensure that table handler get path in lower case */
   if (tmp_path != path)
     strmov(tmp_path, path);
diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc
index be94f19f597..39c4b8e7033 100644
--- a/sql/item_strfunc.cc
+++ b/sql/item_strfunc.cc
@@ -631,6 +631,7 @@ String *Item_func_concat_ws::val_str(String *str)
   String tmp_sep_str(tmp_str_buff, sizeof(tmp_str_buff),default_charset_info),
          *sep_str, *res, *res2,*use_as_buff;
   uint i;
+  bool is_const= 0;
 
   null_value=0;
   if (!(sep_str= args[0]->val_str(&tmp_sep_str)))
@@ -644,7 +645,11 @@ String *Item_func_concat_ws::val_str(String *str)
   // If not, return the empty string
   for (i=1; i < arg_count; i++)
     if ((res= args[i]->val_str(str)))
+    {
+      is_const= args[i]->const_item() || !args[i]->used_tables();
       break;
+    }
+
   if (i ==  arg_count)
     return &my_empty_string;
 
@@ -662,7 +667,7 @@ String *Item_func_concat_ws::val_str(String *str)
 			  current_thd->variables.max_allowed_packet);
       goto null;
     }
-    if (res->alloced_length() >=
+    if (!is_const && res->alloced_length() >=
 	res->length() + sep_str->length() + res2->length())
     {						// Use old buffer
       res->append(*sep_str);			// res->length() > 0 always
diff --git a/sql/log.cc b/sql/log.cc
index 1af2f3a4ddc..feaa5499912 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -1024,14 +1024,10 @@ bool LOGGER::general_log_write(THD *thd, enum enum_server_command command,
   Log_event_handler **current_handler= general_log_handler_list;
   char user_host_buff[MAX_USER_HOST_SIZE + 1];
   Security_context *sctx= thd->security_ctx;
-  ulong id;
   uint user_host_len= 0;
   time_t current_time;
 
-  if (thd)
-    id= thd->thread_id;                 /* Normal thread */
-  else
-    id= 0;                              /* Log from connect handler */
+  DBUG_ASSERT(thd);
 
   lock_shared();
   if (!opt_log)
@@ -1050,7 +1046,7 @@ bool LOGGER::general_log_write(THD *thd, enum enum_server_command command,
   while (*current_handler)
     error|= (*current_handler++)->
       log_general(thd, current_time, user_host_buff,
-                  user_host_len, id,
+                  user_host_len, thd->thread_id,
                   command_name[(uint) command].str,
                   command_name[(uint) command].length,
                   query, query_length,
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 0cda724b698..08fe3aba8ed 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -8312,6 +8312,16 @@ Write_rows_log_event::do_before_row_operations(const Slave_reporting_capability
   
   /* Honor next number column if present */
   m_table->next_number_field= m_table->found_next_number_field;
+  /*
+   * Fixed Bug#45999, In RBR, Store engine of Slave auto-generates new
+   * sequence numbers for auto_increment fields if the values of them are 0.
+   * If generateing a sequence number is decided by the values of
+   * table->auto_increment_field_not_null and SQL_MODE(if includes
+   * MODE_NO_AUTO_VALUE_ON_ZERO) in update_auto_increment function.
+   * SQL_MODE of slave sql thread is always consistency with master's.
+   * In RBR, auto_increment fields never are NULL.
+   */
+  m_table->auto_increment_field_not_null= TRUE;
   return error;
 }
 
@@ -8321,6 +8331,7 @@ Write_rows_log_event::do_after_row_operations(const Slave_reporting_capability *
 {
   int local_error= 0;
   m_table->next_number_field=0;
+  m_table->auto_increment_field_not_null= FALSE;
   if (bit_is_set(slave_exec_mode, SLAVE_EXEC_MODE_IDEMPOTENT) == 1 ||
       m_table->s->db_type()->db_type == DB_TYPE_NDBCLUSTER)
   {
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 3e2f8eabd39..3f536f01094 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -4789,10 +4789,10 @@ static bool read_init_file(char *file_name)
   DBUG_ENTER("read_init_file");
   DBUG_PRINT("enter",("name: %s",file_name));
   if (!(file=my_fopen(file_name,O_RDONLY,MYF(MY_WME))))
-    return(1);
+    DBUG_RETURN(TRUE);
   bootstrap(file);
   (void) my_fclose(file,MYF(MY_WME));
-  return 0;
+  DBUG_RETURN(FALSE);
 }
 
 
diff --git a/sql/rpl_filter.cc b/sql/rpl_filter.cc
index 3004a3905e5..68272c58bb1 100644
--- a/sql/rpl_filter.cc
+++ b/sql/rpl_filter.cc
@@ -350,6 +350,7 @@ Rpl_filter::add_do_db(const char* table_spec)
   DBUG_ENTER("Rpl_filter::add_do_db");
   i_string *db = new i_string(table_spec);
   do_db.push_back(db);
+  DBUG_VOID_RETURN;
 }
 
 
@@ -359,6 +360,7 @@ Rpl_filter::add_ignore_db(const char* table_spec)
   DBUG_ENTER("Rpl_filter::add_ignore_db");
   i_string *db = new i_string(table_spec);
   ignore_db.push_back(db);
+  DBUG_VOID_RETURN;
 }
 
 extern "C" uchar *get_table_key(const uchar *, size_t *, my_bool);
diff --git a/sql/set_var.cc b/sql/set_var.cc
index 0b89333ce03..b64b54fdd29 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -1238,6 +1238,7 @@ void fix_slave_exec_mode(enum_var_type type)
   }
   if (bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT) == 0)
     bit_do_set(slave_exec_mode_options, SLAVE_EXEC_MODE_STRICT);
+  DBUG_VOID_RETURN;
 }
 
 
diff --git a/sql/sql_class.cc b/sql/sql_class.cc
index 3f568566c89..daef5a26742 100644
--- a/sql/sql_class.cc
+++ b/sql/sql_class.cc
@@ -399,6 +399,31 @@ char *thd_security_context(THD *thd, char *buffer, unsigned int length,
   return buffer;
 }
 
+
+/**
+  Implementation of Drop_table_error_handler::handle_error().
+  The reason in having this implementation is to silence technical low-level
+  warnings during DROP TABLE operation. Currently we don't want to expose
+  the following warnings during DROP TABLE:
+    - Some of table files are missed or invalid (the table is going to be
+      deleted anyway, so why bother that something was missed);
+    - A trigger associated with the table does not have DEFINER (One of the
+      MySQL specifics now is that triggers are loaded for the table being
+      dropped. So, we may have a warning that trigger does not have DEFINER
+      attribute during DROP TABLE operation).
+
+  @return TRUE if the condition is handled.
+*/
+bool Drop_table_error_handler::handle_error(uint sql_errno,
+                                            const char *message,
+                                            MYSQL_ERROR::enum_warning_level level,
+                                            THD *thd)
+{
+  return ((sql_errno == EE_DELETE && my_errno == ENOENT) ||
+          sql_errno == ER_TRG_NO_DEFINER);
+}
+
+
 /**
   Clear this diagnostics area. 
 
diff --git a/sql/sql_class.h b/sql/sql_class.h
index f52d5fae76f..c38eb17f191 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -1091,6 +1091,31 @@ public:
 };
 
 
+/**
+  This class is an internal error handler implementation for 
+  DROP TABLE statements. The thing is that there may be warnings during
+  execution of these statements, which should not be exposed to the user.
+  This class is intended to silence such warnings.
+*/
+
+class Drop_table_error_handler : public Internal_error_handler
+{
+public:
+  Drop_table_error_handler(Internal_error_handler *err_handler)
+    :m_err_handler(err_handler)
+  { }
+
+public:
+  bool handle_error(uint sql_errno,
+                    const char *message,
+                    MYSQL_ERROR::enum_warning_level level,
+                    THD *thd);
+
+private:
+  Internal_error_handler *m_err_handler;
+};
+
+
 /**
   Stores status of the currently executed statement.
   Cleared at the beginning of the statement, and then
diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc
index b79b9b1ae9e..3ac40ae825a 100644
--- a/sql/sql_insert.cc
+++ b/sql/sql_insert.cc
@@ -2274,44 +2274,9 @@ void kill_delayed_threads(void)
 }
 
 
-/*
- * Create a new delayed insert thread
-*/
-
-pthread_handler_t handle_delayed_insert(void *arg)
+static void handle_delayed_insert_impl(THD *thd, Delayed_insert *di)
 {
-  Delayed_insert *di=(Delayed_insert*) arg;
-  THD *thd= &di->thd;
-
-  pthread_detach_this_thread();
-  /* Add thread to THD list so that's it's visible in 'show processlist' */
-  pthread_mutex_lock(&LOCK_thread_count);
-  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
-  thd->set_current_time();
-  threads.append(thd);
-  thd->killed=abort_loop ? THD::KILL_CONNECTION : THD::NOT_KILLED;
-  pthread_mutex_unlock(&LOCK_thread_count);
-
-  /*
-    Wait until the client runs into pthread_cond_wait(),
-    where we free it after the table is opened and di linked in the list.
-    If we did not wait here, the client might detect the opened table
-    before it is linked to the list. It would release LOCK_delayed_create
-    and allow another thread to create another handler for the same table,
-    since it does not find one in the list.
-  */
-  pthread_mutex_lock(&di->mutex);
-#if !defined( __WIN__) /* Win32 calls this in pthread_create */
-  if (my_thread_init())
-  {
-    /* Can't use my_error since store_globals has not yet been called */
-    thd->main_da.set_error_status(thd, ER_OUT_OF_RESOURCES,
-                                  ER(ER_OUT_OF_RESOURCES));
-    goto end;
-  }
-#endif
-
-  DBUG_ENTER("handle_delayed_insert");
+  DBUG_ENTER("handle_delayed_insert_impl");
   thd->thread_stack= (char*) &thd;
   if (init_thr_lock() || thd->store_globals())
   {
@@ -2500,6 +2465,49 @@ err:
    */
   ha_autocommit_or_rollback(thd, 1);
 
+  DBUG_VOID_RETURN;
+}
+
+
+/*
+ * Create a new delayed insert thread
+*/
+
+pthread_handler_t handle_delayed_insert(void *arg)
+{
+  Delayed_insert *di=(Delayed_insert*) arg;
+  THD *thd= &di->thd;
+
+  pthread_detach_this_thread();
+  /* Add thread to THD list so that's it's visible in 'show processlist' */
+  pthread_mutex_lock(&LOCK_thread_count);
+  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
+  thd->set_current_time();
+  threads.append(thd);
+  thd->killed=abort_loop ? THD::KILL_CONNECTION : THD::NOT_KILLED;
+  pthread_mutex_unlock(&LOCK_thread_count);
+
+  /*
+    Wait until the client runs into pthread_cond_wait(),
+    where we free it after the table is opened and di linked in the list.
+    If we did not wait here, the client might detect the opened table
+    before it is linked to the list. It would release LOCK_delayed_create
+    and allow another thread to create another handler for the same table,
+    since it does not find one in the list.
+  */
+  pthread_mutex_lock(&di->mutex);
+#if !defined( __WIN__) /* Win32 calls this in pthread_create */
+  if (my_thread_init())
+  {
+    /* Can't use my_error since store_globals has not yet been called */
+    thd->main_da.set_error_status(thd, ER_OUT_OF_RESOURCES,
+                                  ER(ER_OUT_OF_RESOURCES));
+    goto end;
+  }
+#endif
+
+  handle_delayed_insert_impl(thd, di);
+
 #ifndef __WIN__
 end:
 #endif
@@ -2523,7 +2531,8 @@ end:
 
   my_thread_end();
   pthread_exit(0);
-  DBUG_RETURN(0);
+
+  return 0;
 }
 
 
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index ca27d476213..a977740ebe2 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -408,29 +408,12 @@ void execute_init_command(THD *thd, sys_var_str *init_command_var,
 }
 
 
-/**
-  Execute commands from bootstrap_file.
-
-  Used when creating the initial grant tables.
-*/
-
-pthread_handler_t handle_bootstrap(void *arg)
+static void handle_bootstrap_impl(THD *thd)
 {
-  THD *thd=(THD*) arg;
   FILE *file=bootstrap_file;
   char *buff;
   const char* found_semicolon= NULL;
 
-  /* The following must be called before DBUG_ENTER */
-  thd->thread_stack= (char*) &thd;
-  if (my_thread_init() || thd->store_globals())
-  {
-#ifndef EMBEDDED_LIBRARY
-    close_connection(thd, ER_OUT_OF_RESOURCES, 1);
-#endif
-    thd->fatal_error();
-    goto end;
-  }
   DBUG_ENTER("handle_bootstrap");
 
 #ifndef EMBEDDED_LIBRARY
@@ -525,6 +508,33 @@ pthread_handler_t handle_bootstrap(void *arg)
 #endif
   }
 
+  DBUG_VOID_RETURN;
+}
+
+
+/**
+  Execute commands from bootstrap_file.
+
+  Used when creating the initial grant tables.
+*/
+
+pthread_handler_t handle_bootstrap(void *arg)
+{
+  THD *thd=(THD*) arg;
+
+  /* The following must be called before DBUG_ENTER */
+  thd->thread_stack= (char*) &thd;
+  if (my_thread_init() || thd->store_globals())
+  {
+#ifndef EMBEDDED_LIBRARY
+    close_connection(thd, ER_OUT_OF_RESOURCES, 1);
+#endif
+    thd->fatal_error();
+    goto end;
+  }
+
+  handle_bootstrap_impl(thd);
+
 end:
   net_end(&thd->net);
   thd->cleanup();
@@ -539,7 +549,8 @@ end:
   my_thread_end();
   pthread_exit(0);
 #endif
-  DBUG_RETURN(0);
+
+  return 0;
 }
 
 
diff --git a/sql/sql_plugin.cc b/sql/sql_plugin.cc
index da168d36429..025c8a8248d 100644
--- a/sql/sql_plugin.cc
+++ b/sql/sql_plugin.cc
@@ -1520,7 +1520,7 @@ error:
 
 void plugin_shutdown(void)
 {
-  uint i, count= plugin_array.elements, free_slots= 0;
+  uint i, count= plugin_array.elements;
   struct st_plugin_int **plugins, *plugin;
   struct st_plugin_dl **dl;
   DBUG_ENTER("plugin_shutdown");
@@ -1541,18 +1541,13 @@ void plugin_shutdown(void)
     while (reap_needed && (count= plugin_array.elements))
     {
       reap_plugins();
-      for (i= free_slots= 0; i < count; i++)
+      for (i= 0; i < count; i++)
       {
         plugin= *dynamic_element(&plugin_array, i, struct st_plugin_int **);
-        switch (plugin->state) {
-        case PLUGIN_IS_READY:
+        if (plugin->state == PLUGIN_IS_READY)
+        {
           plugin->state= PLUGIN_IS_DELETED;
           reap_needed= true;
-          break;
-        case PLUGIN_IS_FREED:
-        case PLUGIN_IS_UNINITIALIZED:
-          free_slots++;
-          break;
         }
       }
       if (!reap_needed)
@@ -1565,9 +1560,6 @@ void plugin_shutdown(void)
       }
     }
 
-    if (count > free_slots)
-      sql_print_warning("Forcing shutdown of %d plugins", count - free_slots);
-
     plugins= (struct st_plugin_int **) my_alloca(sizeof(void*) * (count+1));
 
     /*
@@ -1589,8 +1581,8 @@ void plugin_shutdown(void)
       if (!(plugins[i]->state & (PLUGIN_IS_UNINITIALIZED | PLUGIN_IS_FREED |
                                  PLUGIN_IS_DISABLED)))
       {
-        sql_print_information("Plugin '%s' will be forced to shutdown",
-                              plugins[i]->name.str);
+        sql_print_warning("Plugin '%s' will be forced to shutdown",
+                          plugins[i]->name.str);
         /*
           We are forcing deinit on plugins so we don't want to do a ref_count
           check until we have processed all the plugins.
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 4e50191be6b..8b1e0ae365b 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -1523,12 +1523,8 @@ JOIN::optimize()
       }
     }
 
-    /* 
-      If this join belongs to an uncacheable subquery save 
-      the original join 
-    */
-    if (select_lex->uncacheable && !is_top_level_join() &&
-        init_save_join_tab())
+    /* If this join belongs to an uncacheable query save the original join */
+    if (select_lex->uncacheable && init_save_join_tab())
       DBUG_RETURN(-1);                         /* purecov: inspected */
   }
 
@@ -13682,7 +13678,10 @@ static int remove_dup_with_compare(THD *thd, TABLE *table, Field **first_field,
     if (error)
     {
       if (error == HA_ERR_RECORD_DELETED)
-	continue;
+      {
+        error= file->rnd_next(record);
+        continue;
+      }
       if (error == HA_ERR_END_OF_FILE)
 	break;
       goto err;
diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index 89a84ebc1fe..41e76211dd8 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -1772,6 +1772,7 @@ bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
                     my_bool drop_temporary)
 {
   bool error= FALSE, need_start_waiters= FALSE;
+  Drop_table_error_handler err_handler(thd->get_internal_handler());
   DBUG_ENTER("mysql_rm_table");
 
   /* mark for close and remove all cached entries */
@@ -1792,7 +1793,10 @@ bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
     LOCK_open during wait_if_global_read_lock(), other threads could not
     close their tables. This would make a pretty deadlock.
   */
+  thd->push_internal_handler(&err_handler);
   error= mysql_rm_table_part2(thd, tables, if_exists, drop_temporary, 0, 0);
+  thd->pop_internal_handler();
+
 
   if (need_start_waiters)
     start_waiting_global_read_lock(thd);
@@ -1894,9 +1898,6 @@ int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
     DBUG_RETURN(1);
   }
 
-  /* Don't give warnings for not found errors, as we already generate notes */
-  thd->no_warnings_for_error= 1;
-
   for (table= tables; table; table= table->next_local)
   {
     char *db=table->db;
@@ -2145,7 +2146,6 @@ int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
 err_with_placeholders:
   unlock_table_names(thd, tables, (TABLE_LIST*) 0);
   pthread_mutex_unlock(&LOCK_open);
-  thd->no_warnings_for_error= 0;
   DBUG_RETURN(error);
 }
 
diff --git a/sql/unireg.cc b/sql/unireg.cc
index 68a352e4a44..60674b8390b 100644
--- a/sql/unireg.cc
+++ b/sql/unireg.cc
@@ -412,10 +412,10 @@ int rea_create_table(THD *thd, const char *path,
   DBUG_ASSERT(*fn_rext(frm_name));
   if (thd->variables.keep_files_on_create)
     create_info->options|= HA_CREATE_KEEP_FILES;
-  if (file->ha_create_handler_files(path, NULL, CHF_CREATE_FLAG, create_info))
-    goto err_handler;
-  if (!create_info->frm_only && ha_create_table(thd, path, db, table_name,
-                                                create_info,0))
+  if (!create_info->frm_only &&
+      (file->ha_create_handler_files(path, NULL, CHF_CREATE_FLAG,
+                                     create_info) ||
+       ha_create_table(thd, path, db, table_name, create_info, 0)))
     goto err_handler;
   DBUG_RETURN(0);
 
diff --git a/storage/archive/ha_archive.cc b/storage/archive/ha_archive.cc
index 1146b2eb73a..981814628f9 100644
--- a/storage/archive/ha_archive.cc
+++ b/storage/archive/ha_archive.cc
@@ -993,6 +993,7 @@ int ha_archive::rnd_init(bool scan)
   /* We rewind the file so that we can read from the beginning if scan */
   if (scan)
   {
+    scan_rows= stats.records;
     DBUG_PRINT("info", ("archive will retrieve %llu rows", 
                         (unsigned long long) scan_rows));
 
@@ -1461,7 +1462,6 @@ int ha_archive::info(uint flag)
   stats.records= share->rows_recorded;
   pthread_mutex_unlock(&share->mutex);
 
-  scan_rows= stats.records;
   stats.deleted= 0;
 
   DBUG_PRINT("ha_archive", ("Stats rows is %d\n", (int)stats.records));
@@ -1472,11 +1472,12 @@ int ha_archive::info(uint flag)
 
     VOID(my_stat(share->data_file_name, &file_stat, MYF(MY_WME)));
 
-    stats.mean_rec_length= table->s->reclength + buffer.alloced_length();
     stats.data_file_length= file_stat.st_size;
     stats.create_time= (ulong) file_stat.st_ctime;
     stats.update_time= (ulong) file_stat.st_mtime;
-    stats.max_data_file_length= share->rows_recorded * stats.mean_rec_length;
+    stats.mean_rec_length= stats.records ?
+      stats.data_file_length / stats.records : table->s->reclength;
+    stats.max_data_file_length= MAX_FILE_SIZE;
   }
   stats.delete_length= 0;
   stats.index_file_length=0;
diff --git a/storage/ndb/src/kernel/blocks/suma/Suma.cpp b/storage/ndb/src/kernel/blocks/suma/Suma.cpp
index 5f0510cf43a..9179cf7fbbd 100644
--- a/storage/ndb/src/kernel/blocks/suma/Suma.cpp
+++ b/storage/ndb/src/kernel/blocks/suma/Suma.cpp
@@ -274,7 +274,7 @@ Suma::execSTTOR(Signal* signal) {
       jam();
       
       send_start_me_req(signal);
-      return;
+      DBUG_VOID_RETURN;
     }
   }
   
@@ -322,7 +322,7 @@ Suma::execSTTOR(Signal* signal) {
     if (ERROR_INSERTED(13030))
     {
       ndbout_c("Dont start handover");
-      return;
+      DBUG_VOID_RETURN;
     }
   }//if
   
@@ -332,7 +332,7 @@ Suma::execSTTOR(Signal* signal) {
      * Allow API's to connect
      */
     sendSTTORRY(signal);
-    return;
+    DBUG_VOID_RETURN;
   }
 
   if(startphase == 101)
@@ -345,7 +345,7 @@ Suma::execSTTOR(Signal* signal) {
        */
       c_startup.m_wait_handover= true;
       check_start_handover(signal);
-      return;
+      DBUG_VOID_RETURN;
     }
   }
   sendSTTORRY(signal);
@@ -575,19 +575,19 @@ void Suma::execAPI_FAILREQ(Signal* signal)
     jam();
     sendSignalWithDelay(reference(), GSN_API_FAILREQ, signal,
                         200, signal->getLength());
-    return;
+    DBUG_VOID_RETURN;
   }
 
   if (c_failedApiNodes.get(failedApiNode))
   {
     jam();
-    return;
+    DBUG_VOID_RETURN;
   }
 
   if (!c_subscriber_nodes.get(failedApiNode))
   {
     jam();
-    return;
+    DBUG_VOID_RETURN;
   }
 
   c_failedApiNodes.set(failedApiNode);
@@ -2453,7 +2453,7 @@ Suma::execSUB_START_REQ(Signal* signal){
     jam();
     c_subscriberPool.release(subbPtr);
     sendSubStartRef(signal, SubStartRef::PartiallyConnected);
-    return;
+    DBUG_VOID_RETURN;
   }
   
   DBUG_PRINT("info",("c_subscriberPool  size: %d free: %d",
@@ -4289,7 +4289,7 @@ Suma::Restart::runSUMA_START_ME_REQ(Signal* signal, Uint32 sumaRef)
     ref->errorCode = SumaStartMeRef::Busy;
     suma.sendSignal(sumaRef, GSN_SUMA_START_ME_REF, signal,
 		    SumaStartMeRef::SignalLength, JBB);
-    return;
+    DBUG_VOID_RETURN;
   }
 
   nodeId = refToNode(sumaRef);