diff --git a/Build-tools/Do-compile b/Build-tools/Do-compile
index f47ae794b00..e6e71582c74 100755
--- a/Build-tools/Do-compile
+++ b/Build-tools/Do-compile
@@ -171,6 +171,17 @@ info("PATH is $ENV{PATH}");
 
 log_timestamp();
 
+$md5_result= safe_system("perl $ENV{HOME}/my_md5sum -c ${opt_distribution}.md5");
+
+if ($md5_result != 0)
+{
+  abort("MD5 check failed for $opt_distribution!");
+}
+else
+{
+  info("SUCCESS: MD5 checks for $opt_distribution");
+}
+
 if (-x "$host/bin/mysqladmin")
 {
   log_system("$host/bin/mysqladmin $mysqladmin_args -S $mysql_unix_port -s shutdown");
@@ -204,17 +215,6 @@ if ($opt_stage == 0)
 safe_cd($host);
 if ($opt_stage == 0 && ! $opt_use_old_distribution)
 {
-  $md5_result= safe_system("./my_md5sum -c ${opt_distribution}.md5");
-
-  if ($md5_result != 0)
-  {
-	abort("MD5 failed for $opt_distribution!");
-  }
-  else
-  {
-	info("SUCCESS: MD5 checks for $opt_distribution");
-  }
-
   safe_system("gunzip < $opt_distribution | $tar xf -");
 
   # Fix file times; This is needed because the time for files may be
@@ -343,7 +343,9 @@ $tar_file=<$pwd/$host/mysql*.t*gz>;
 abort ("Could not find tarball!") unless ($tar_file);
 
 # Generate the MD5 for the binary distribution
-safe_system("./my_md5sum $tar_file > ${tar_file}.md5}");
+$tar_file=~ /(mysql[^\/]*)\.(tar\.gz|tgz)/;
+$tar_file_lite= "$1.$2";
+system("cd $pwd/$host; perl $ENV{HOME}/my_md5sum $tar_file_lite > ${tar_file_lite}.md5");
 
 #
 # Unpack the binary distribution
diff --git a/innobase/btr/btr0cur.c b/innobase/btr/btr0cur.c
index 2e9194ff30f..be201da4510 100644
--- a/innobase/btr/btr0cur.c
+++ b/innobase/btr/btr0cur.c
@@ -2717,8 +2717,11 @@ btr_estimate_number_of_different_key_vals(
 			rec = page_rec_get_next(rec);
 		}
 		
+
 		if (n_cols == dict_index_get_n_unique_in_tree(index)) {
-			/* We add one because we know that the first record
+
+			/* If there is more than one leaf page in the tree,
+			we add one because we know that the first record
 			on the page certainly had a different prefix than the
 			last record on the previous index page in the
 			alphabetical order. Before this fix, if there was
@@ -2726,7 +2729,11 @@ btr_estimate_number_of_different_key_vals(
 			algorithm grossly underestimated the number of rows
 			in the table. */
 
-			n_diff[n_cols]++;
+			if (btr_page_get_prev(page, &mtr) != FIL_NULL
+			    || btr_page_get_next(page, &mtr) != FIL_NULL) {
+
+				n_diff[n_cols]++;
+			}
 		}
 
 		total_external_size +=
diff --git a/innobase/include/lock0lock.h b/innobase/include/lock0lock.h
index 9c5f35c6674..9f525042dcc 100644
--- a/innobase/include/lock0lock.h
+++ b/innobase/include/lock0lock.h
@@ -418,7 +418,8 @@ lock_release_off_kernel(
 /*====================*/
 	trx_t*	trx);	/* in: transaction */
 /*************************************************************************
-Releases table locks, and releases possible other transactions waiting
+Releases table locks explicitly requested with LOCK TABLES (indicated by
+lock type LOCK_TABLE_EXP), and releases possible other transactions waiting
 because of these locks. */
 
 void
@@ -548,7 +549,7 @@ extern lock_sys_t*	lock_sys;
 /* Lock types */
 #define LOCK_TABLE	16	/* these type values should be so high that */
 #define	LOCK_REC	32	/* they can be ORed to the lock mode */
-#define LOCK_TABLE_EXP	80	/* explicit table lock */
+#define LOCK_TABLE_EXP	80	/* explicit table lock (80 = 16 + 64) */
 #define LOCK_TYPE_MASK	0xF0UL	/* mask used to extract lock type from the
 				type_mode field in a lock */
 /* Waiting lock flag */
diff --git a/innobase/include/row0mysql.h b/innobase/include/row0mysql.h
index 390e8c4da57..8f6264944ce 100644
--- a/innobase/include/row0mysql.h
+++ b/innobase/include/row0mysql.h
@@ -161,11 +161,12 @@ row_lock_table_autoinc_for_mysql(
 	row_prebuilt_t*	prebuilt);	/* in: prebuilt struct in the MySQL
 					table handle */
 /*************************************************************************
-Unlocks a table lock possibly reserved by trx. */
+Unlocks all table locks explicitly requested by trx (with LOCK TABLES,
+lock type LOCK_TABLE_EXP). */
 
 void		  	
-row_unlock_table_for_mysql(
-/*=======================*/
+row_unlock_tables_for_mysql(
+/*========================*/
 	trx_t*	trx);	/* in: transaction */
 /*************************************************************************
 Sets a table lock on the table mentioned in prebuilt. */
diff --git a/innobase/include/srv0srv.h b/innobase/include/srv0srv.h
index c527d40bc79..c7ba39aaaf1 100644
--- a/innobase/include/srv0srv.h
+++ b/innobase/include/srv0srv.h
@@ -157,6 +157,7 @@ extern	ulint	srv_test_n_mutexes;
 extern	ulint	srv_test_array_size;
 
 extern ulint	srv_activity_count;
+extern ulint	srv_fatal_semaphore_wait_threshold;
 
 extern mutex_t*	kernel_mutex_temp;/* mutex protecting the server, trx structs,
 				query threads, and lock table: we allocate
diff --git a/innobase/include/sync0arr.h b/innobase/include/sync0arr.h
index e7d511f8137..92691d5fdd9 100644
--- a/innobase/include/sync0arr.h
+++ b/innobase/include/sync0arr.h
@@ -95,7 +95,7 @@ void
 sync_arr_wake_threads_if_sema_free(void);
 /*====================================*/
 /**************************************************************************
-Prints warnings of long semaphore waits to stderr. Currently > 120 sec. */
+Prints warnings of long semaphore waits to stderr. */
 
 void
 sync_array_print_long_waits(void);
diff --git a/innobase/include/trx0trx.h b/innobase/include/trx0trx.h
index a8c1df534da..7eb91048684 100644
--- a/innobase/include/trx0trx.h
+++ b/innobase/include/trx0trx.h
@@ -423,8 +423,9 @@ struct trx_struct{
 	lock_t*		auto_inc_lock;	/* possible auto-inc lock reserved by
 					the transaction; note that it is also
 					in the lock list trx_locks */
-	ulint		n_tables_locked;/* number of table locks reserved by
-					the transaction, stored in trx_locks */
+	ulint		n_lock_table_exp;/* number of explicit table locks
+					(LOCK TABLES) reserved by the
+					transaction, stored in trx_locks */
 	UT_LIST_NODE_T(trx_t)
 			trx_list;	/* list of transactions */
 	UT_LIST_NODE_T(trx_t)
diff --git a/innobase/lock/lock0lock.c b/innobase/lock/lock0lock.c
index be0806590a9..92e8f224dea 100644
--- a/innobase/lock/lock0lock.c
+++ b/innobase/lock/lock0lock.c
@@ -2023,9 +2023,8 @@ lock_grant(
 
                 lock->trx->auto_inc_lock = lock;
         } else if (lock_get_type(lock) == LOCK_TABLE_EXP) {
-		ut_ad(lock_get_mode(lock) == LOCK_S
+		ut_a(lock_get_mode(lock) == LOCK_S
 			|| lock_get_mode(lock) == LOCK_X);
-		lock->trx->n_tables_locked++;
 	}
 
 	if (lock_print_waits) {
@@ -3203,6 +3202,10 @@ lock_table_create(
 	lock->type_mode = type_mode | LOCK_TABLE;
 	lock->trx = trx;
 
+	if (lock_get_type(lock) == LOCK_TABLE_EXP) {
+		lock->trx->n_lock_table_exp++;
+	}
+
 	lock->un_member.tab_lock.table = table;
 
 	UT_LIST_ADD_LAST(un_member.tab_lock.locks, table->locks, lock);
@@ -3238,7 +3241,11 @@ lock_table_remove_low(
 	if (lock == trx->auto_inc_lock) {
 		trx->auto_inc_lock = NULL;
 	}
-	
+
+	if (lock_get_type(lock) == LOCK_TABLE_EXP) {
+		lock->trx->n_lock_table_exp--;
+	}
+
 	UT_LIST_REMOVE(trx_locks, trx->trx_locks, lock);
 	UT_LIST_REMOVE(un_member.tab_lock.locks, table->locks, lock);
 }	
@@ -3386,7 +3393,7 @@ lock_table(
 		return(DB_SUCCESS);
 	}
 
-	ut_ad(flags == 0 || flags == LOCK_TABLE_EXP);
+	ut_a(flags == 0 || flags == LOCK_TABLE_EXP);
 
 	trx = thr_get_trx(thr);
 
@@ -3418,10 +3425,7 @@ lock_table(
 
 	lock_table_create(table, mode | flags, trx);
 
-	if (flags) {
-		ut_ad(mode == LOCK_S || mode == LOCK_X);
-		trx->n_tables_locked++;
-	}
+	ut_a(!flags || mode == LOCK_S || mode == LOCK_X);
 
 	lock_mutex_exit_kernel();
 
@@ -3502,13 +3506,13 @@ lock_table_dequeue(
 #ifdef UNIV_SYNC_DEBUG
 	ut_ad(mutex_own(&kernel_mutex));
 #endif /* UNIV_SYNC_DEBUG */
-	ut_ad(lock_get_type(in_lock) == LOCK_TABLE ||
+	ut_a(lock_get_type(in_lock) == LOCK_TABLE ||
 		lock_get_type(in_lock) == LOCK_TABLE_EXP);
 
 	lock = UT_LIST_GET_NEXT(un_member.tab_lock.locks, in_lock);
 
 	lock_table_remove_low(in_lock);
-	
+
 	/* Check if waiting locks in the queue can now be granted: grant
 	locks if there are no conflicting locks ahead. */
 
@@ -3608,9 +3612,8 @@ lock_release_off_kernel(
 
 			lock_table_dequeue(lock);
 			if (lock_get_type(lock) == LOCK_TABLE_EXP) {
-				ut_ad(lock_get_mode(lock) == LOCK_S
+				ut_a(lock_get_mode(lock) == LOCK_S
 					|| lock_get_mode(lock) == LOCK_X);
-				trx->n_tables_locked--;
 			}
 		}
 
@@ -3631,11 +3634,12 @@ lock_release_off_kernel(
 	mem_heap_empty(trx->lock_heap);
 
 	ut_a(trx->auto_inc_lock == NULL);
-	ut_a(trx->n_tables_locked == 0);
+	ut_a(trx->n_lock_table_exp == 0);
 }
 
 /*************************************************************************
-Releases table locks, and releases possible other transactions waiting
+Releases table locks explicitly requested with LOCK TABLES (indicated by
+lock type LOCK_TABLE_EXP), and releases possible other transactions waiting
 because of these locks. */
 
 void
@@ -3660,7 +3664,7 @@ lock_release_tables_off_kernel(
 		count++;
 
 		if (lock_get_type(lock) == LOCK_TABLE_EXP) {
-			ut_ad(lock_get_mode(lock) == LOCK_S
+			ut_a(lock_get_mode(lock) == LOCK_S
 				|| lock_get_mode(lock) == LOCK_X);
 			if (trx->insert_undo || trx->update_undo) {
 
@@ -3676,7 +3680,7 @@ lock_release_tables_off_kernel(
 			}
 
 			lock_table_dequeue(lock);
-			trx->n_tables_locked--;
+
 			lock = UT_LIST_GET_LAST(trx->trx_locks);
 			continue;
 		}
@@ -3695,9 +3699,7 @@ lock_release_tables_off_kernel(
 		lock = UT_LIST_GET_PREV(trx_locks, lock);
 	}
 
-	mem_heap_empty(trx->lock_heap);
-
-	ut_a(trx->n_tables_locked == 0);
+	ut_a(trx->n_lock_table_exp == 0);
 }
 
 /*************************************************************************
diff --git a/innobase/row/row0ins.c b/innobase/row/row0ins.c
index 7f1852c70f2..0da749212d2 100644
--- a/innobase/row/row0ins.c
+++ b/innobase/row/row0ins.c
@@ -370,6 +370,32 @@ row_ins_cascade_ancestor_updates_table(
 	return(FALSE);
 }
 	
+/*************************************************************************
+Returns the number of ancestor UPDATE or DELETE nodes of a
+cascaded update/delete node. */
+static
+ulint
+row_ins_cascade_n_ancestors(
+/*========================*/
+				/* out: number of ancestors */
+	que_node_t*	node)	/* in: node in a query graph */
+{
+	que_node_t*	parent;
+	ulint		n_ancestors = 0;
+
+	parent = que_node_get_parent(node);
+	
+	while (que_node_get_type(parent) == QUE_NODE_UPDATE) {
+		n_ancestors++;
+
+		parent = que_node_get_parent(parent);
+
+		ut_a(parent);
+	}
+
+	return(n_ancestors);
+}
+	
 /**********************************************************************
 Calculates the update vector node->cascade->update for a child table in
 a cascaded update. */
@@ -615,6 +641,34 @@ row_ins_foreign_report_add_err(
 	mutex_exit(&dict_foreign_err_mutex);
 }
 
+/*************************************************************************
+Invalidate the query cache for the given table. */
+static
+void
+row_ins_invalidate_query_cache(
+/*===========================*/
+	que_thr_t*	thr,		/* in: query thread whose run_node
+					is an update node */
+	const char*	name)		/* in: table name prefixed with
+					database name and a '/' character */
+{
+	char*	buf;
+	char*	ptr;
+	ulint	len = strlen(name) + 1;
+
+	buf = mem_strdupl(name, len);
+
+	ptr = strchr(buf, '/');
+	ut_a(ptr);
+	*ptr = '\0';
+
+	/* We call a function in ha_innodb.cc */
+#ifndef UNIV_HOTBACKUP
+	innobase_invalidate_query_cache(thr_get_trx(thr), buf, len);
+#endif
+	mem_free(buf);
+}
+
 /*************************************************************************
 Perform referential actions or checks when a parent row is deleted or updated
 and the constraint had an ON DELETE or ON UPDATE condition which was not
@@ -650,26 +704,15 @@ row_ins_foreign_check_on_constraint(
 	ulint		n_to_update;
 	ulint		err;
 	ulint		i;
-	char*		ptr;
-	char*		table_name_buf;
+
+
 	
 	ut_a(thr && foreign && pcur && mtr);
 
 	/* Since we are going to delete or update a row, we have to invalidate
 	the MySQL query cache for table */
 
-	table_name_buf = mem_strdup(table->name);
-
-	ptr = strchr(table_name_buf, '/');
-	ut_a(ptr);
-	*ptr = '\0';
-	
-#ifndef UNIV_HOTBACKUP
-	/* We call a function in ha_innodb.cc */
-	innobase_invalidate_query_cache(thr_get_trx(thr), table_name_buf,
-						strlen(table->name) + 1);
-#endif
-	mem_free(table_name_buf);
+	row_ins_invalidate_query_cache(thr, table->name);
 
 	node = thr->run_node;
 
@@ -757,6 +800,16 @@ row_ins_foreign_check_on_constraint(
 		goto nonstandard_exit_func;
 	}
 
+	if (row_ins_cascade_n_ancestors(cascade) >= 15) {
+		err = DB_ROW_IS_REFERENCED;
+
+		row_ins_foreign_report_err(
+(char*)"Trying a too deep cascaded delete or update\n",
+			thr, foreign, btr_pcur_get_rec(pcur), entry);
+
+		goto nonstandard_exit_func;
+	}
+
 	index = btr_pcur_get_btr_cur(pcur)->index;
 
 	ut_a(index == foreign->foreign_index);
diff --git a/innobase/row/row0mysql.c b/innobase/row/row0mysql.c
index c4408de2a85..556c80c948d 100644
--- a/innobase/row/row0mysql.c
+++ b/innobase/row/row0mysql.c
@@ -741,14 +741,15 @@ run_again:
 }
 
 /*************************************************************************
-Unlocks a table lock possibly reserved by trx. */
+Unlocks all table locks explicitly requested by trx (with LOCK TABLES,
+lock type LOCK_TABLE_EXP). */
 
 void		  	
-row_unlock_table_for_mysql(
-/*=======================*/
+row_unlock_tables_for_mysql(
+/*========================*/
 	trx_t*	trx)	/* in: transaction */
 {
-	if (!trx->n_tables_locked) {
+	if (!trx->n_lock_table_exp) {
 
 		return;
 	}
@@ -3175,7 +3176,12 @@ row_check_table_for_mysql(
 	REPEATABLE READ here */
 
 	prebuilt->trx->isolation_level = TRX_ISO_REPEATABLE_READ;
-	
+
+	/* Enlarge the fatal lock wait timeout during CHECK TABLE. */
+	mutex_enter(&kernel_mutex);
+	srv_fatal_semaphore_wait_threshold += 7200; /* 2 hours */
+	mutex_exit(&kernel_mutex);
+
 	index = dict_table_get_first_index(table);
 
 	while (index != NULL) {
@@ -3223,6 +3229,11 @@ row_check_table_for_mysql(
 		ret = DB_ERROR;
 	}
 
+	/* Restore the fatal lock wait timeout after CHECK TABLE. */
+	mutex_enter(&kernel_mutex);
+	srv_fatal_semaphore_wait_threshold -= 7200; /* 2 hours */
+	mutex_exit(&kernel_mutex);
+
 	prebuilt->trx->op_info = "";
 
 	return(ret);
diff --git a/innobase/srv/srv0srv.c b/innobase/srv/srv0srv.c
index fc46c95a8a6..4bc5b0dc795 100644
--- a/innobase/srv/srv0srv.c
+++ b/innobase/srv/srv0srv.c
@@ -55,6 +55,9 @@ ibool	srv_lower_case_table_names	= FALSE;
 in the server */
 ulint	srv_activity_count	= 0;
 
+/* The following is the maximum allowed duration of a lock wait. */
+ulint	srv_fatal_semaphore_wait_threshold = 600;
+
 ibool	srv_lock_timeout_and_monitor_active = FALSE;
 ibool	srv_error_monitor_active = FALSE;
 
diff --git a/innobase/srv/srv0start.c b/innobase/srv/srv0start.c
index dd38eddb20b..74dd23e4252 100644
--- a/innobase/srv/srv0start.c
+++ b/innobase/srv/srv0start.c
@@ -1115,7 +1115,7 @@ NetWare. */
 	srv_monitor_file_name = mem_alloc(
 			strlen(fil_path_to_mysql_datadir) +
 			20 + sizeof "/innodb_status.");
-	sprintf(srv_monitor_file_name, "%s/innodb.status.%lu",
+	sprintf(srv_monitor_file_name, "%s/innodb_status.%lu",
 		fil_path_to_mysql_datadir, os_proc_get_number());
 	srv_monitor_file = fopen(srv_monitor_file_name, "w+");
 	if (!srv_monitor_file) {
diff --git a/innobase/sync/sync0arr.c b/innobase/sync/sync0arr.c
index d1644412fbb..7cd221df6a5 100644
--- a/innobase/sync/sync0arr.c
+++ b/innobase/sync/sync0arr.c
@@ -895,7 +895,7 @@ sync_arr_wake_threads_if_sema_free(void)
 }
 
 /**************************************************************************
-Prints warnings of long semaphore waits to stderr. Currently > 120 sec. */
+Prints warnings of long semaphore waits to stderr. */
 
 void
 sync_array_print_long_waits(void)
@@ -905,6 +905,7 @@ sync_array_print_long_waits(void)
         ibool		old_val;
 	ibool		noticed = FALSE;
 	ulint           i;
+	ulint		fatal_timeout = srv_fatal_semaphore_wait_threshold;
 
         for (i = 0; i < sync_primary_wait_array->n_cells; i++) {
 
@@ -919,12 +920,13 @@ sync_array_print_long_waits(void)
                 }
 
                 if (cell->wait_object != NULL
-		    && difftime(time(NULL), cell->reservation_time) > 600) {
+		    && difftime(time(NULL), cell->reservation_time)
+		    > fatal_timeout) {
 
-			fputs(
-"InnoDB: Error: semaphore wait has lasted > 600 seconds\n"
+			fprintf(stderr,
+"InnoDB: Error: semaphore wait has lasted > %lu seconds\n"
 "InnoDB: We intentionally crash the server, because it appears to be hung.\n",
-				stderr);
+				fatal_timeout);
 
 		    	ut_error;
                 }
diff --git a/innobase/trx/trx0trx.c b/innobase/trx/trx0trx.c
index a9aae48dae6..f7497ac4090 100644
--- a/innobase/trx/trx0trx.c
+++ b/innobase/trx/trx0trx.c
@@ -151,7 +151,7 @@ trx_create(
 	trx->n_tickets_to_enter_innodb = 0;
 
 	trx->auto_inc_lock = NULL;
-	trx->n_tables_locked = 0;
+	trx->n_lock_table_exp = 0;
 	
 	trx->read_view_heap = mem_heap_create(256);
 	trx->read_view = NULL;
@@ -279,7 +279,7 @@ trx_free(
 
 	ut_a(!trx->has_search_latch);
 	ut_a(!trx->auto_inc_lock);
-	ut_a(!trx->n_tables_locked);
+	ut_a(!trx->n_lock_table_exp);
 
 	ut_a(trx->dict_operation_lock_mode == 0);
 
diff --git a/mysql-test/r/create_select_tmp.result b/mysql-test/r/create_select_tmp.result
new file mode 100644
index 00000000000..09ffc9013c7
--- /dev/null
+++ b/mysql-test/r/create_select_tmp.result
@@ -0,0 +1,19 @@
+drop table if exists t1, t2;
+CREATE TABLE t1 ( a int );
+INSERT INTO t1 VALUES (1),(2),(1);
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+ERROR 23000: Duplicate entry '1' for key 1
+select * from t2;
+ERROR 42S02: Table 'test.t2' doesn't exist
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+ERROR 23000: Duplicate entry '1' for key 1
+select * from t2;
+ERROR 42S02: Table 'test.t2' doesn't exist
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+ERROR 23000: Duplicate entry '1' for key 1
+select * from t2;
+ERROR 42S02: Table 'test.t2' doesn't exist
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+ERROR 23000: Duplicate entry '1' for key 1
+select * from t2;
+ERROR 42S02: Table 'test.t2' doesn't exist
diff --git a/mysql-test/r/endspace.result b/mysql-test/r/endspace.result
index d2519523f36..4800bbf4ecb 100644
--- a/mysql-test/r/endspace.result
+++ b/mysql-test/r/endspace.result
@@ -157,7 +157,7 @@ teststring
 teststring
 explain select * from t1 order by text1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index	NULL	key1	32	NULL	4	Using index
+1	SIMPLE	t1	index	NULL	key1	32	NULL	3	Using index
 alter table t1 modify text1 char(32) binary not null;
 select * from t1 order by text1;
 text1
diff --git a/mysql-test/r/innodb.result b/mysql-test/r/innodb.result
index 83d042cd279..9d830367745 100644
--- a/mysql-test/r/innodb.result
+++ b/mysql-test/r/innodb.result
@@ -1345,6 +1345,18 @@ ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fail
 update t3 set  t3.id=7  where t1.id =1 and t2.id = t1.id and t3.id = t2.id;
 ERROR 42S02: Unknown table 't1' in where clause
 drop table t3,t2,t1;
+create table t1(
+id int primary key,
+pid int,
+index(pid),
+foreign key(pid) references t1(id) on delete cascade) engine=innodb;
+insert into t1 values(0,0),(1,0),(2,1),(3,2),(4,3),(5,4),(6,5),(7,6),
+(8,7),(9,8),(10,9),(11,10),(12,11),(13,12),(14,13),(15,14);
+delete from t1 where id=0;
+ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
+delete from t1 where id=15;
+delete from t1 where id=0;
+drop table t1;
 CREATE TABLE t1 (col1 int(1))ENGINE=InnoDB;
 CREATE TABLE t2 (col1 int(1),stamp TIMESTAMP,INDEX stamp_idx
 (stamp))ENGINE=InnoDB;
diff --git a/mysql-test/r/ps_1general.result b/mysql-test/r/ps_1general.result
index b9df6187a09..e0a2a364e45 100644
--- a/mysql-test/r/ps_1general.result
+++ b/mysql-test/r/ps_1general.result
@@ -302,18 +302,18 @@ ERROR HY000: This command is not supported in the prepared statement protocol ye
 prepare stmt4 from ' show storage engines ';
 execute stmt4;
 Engine	Support	Comment
-MyISAM	YES/NO	Default type from 3.23 with great performance
-HEAP	YES/NO	Hash based, stored in memory, useful for temporary tables
-MEMORY	YES/NO	Alias for HEAP
+MyISAM	YES/NO	Default engine as of MySQL 3.23 with great performance
+HEAP	YES/NO	Alias for MEMORY
+MEMORY	YES/NO	Hash based, stored in memory, useful for temporary tables
 MERGE	YES/NO	Collection of identical MyISAM tables
 MRG_MYISAM	YES/NO	Alias for MERGE
-ISAM	YES/NO	Obsolete table type; Is replaced by MyISAM
-MRG_ISAM	YES/NO	Obsolete table type; Is replaced by MRG_MYISAM
-InnoDB	YES/NO	Supports transactions, row-level locking and foreign keys
+ISAM	YES/NO	Obsolete storage engine, now replaced by MyISAM
+MRG_ISAM	YES/NO	Obsolete storage engine, now replaced by MERGE
+InnoDB	YES/NO	Supports transactions, row-level locking, and foreign keys
 INNOBASE	YES/NO	Alias for INNODB
 BDB	YES/NO	Supports transactions and page-level locking
 BERKELEYDB	YES/NO	Alias for BDB
-NDBCLUSTER	YES/NO	Clustered, fault tolerant memory based tables
+NDBCLUSTER	YES/NO	Clustered, fault-tolerant, memory-based tables
 NDB	YES/NO	Alias for NDBCLUSTER
 EXAMPLE	YES/NO	Example storage engine
 ARCHIVE	YES/NO	Archive storage engine
diff --git a/mysql-test/r/ps_3innodb.result b/mysql-test/r/ps_3innodb.result
index 8cba3501a73..b89daca7128 100644
--- a/mysql-test/r/ps_3innodb.result
+++ b/mysql-test/r/ps_3innodb.result
@@ -572,7 +572,7 @@ def					ref	253	1024	0	Y	0	31	63
 def					rows	8	10	1	N	32801	0	8
 def					Extra	253	255	44	N	1	31	63
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	<derived6>	ALL	NULL	NULL	NULL	NULL	2	Using where
 6	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	
 5	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
@@ -581,7 +581,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using temporary; Using filesort
 execute stmt1 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	<derived6>	ALL	NULL	NULL	NULL	NULL	2	Using where
 6	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	
 5	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
@@ -643,7 +643,7 @@ def					ref	253	1024	0	Y	0	31	63
 def					rows	8	10	1	N	32801	0	8
 def					Extra	253	255	44	N	1	31	63
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	<derived6>	ALL	NULL	NULL	NULL	NULL	2	Using where
 6	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	
 5	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
@@ -653,7 +653,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 execute stmt1 using @arg00, @arg01, @arg02, @arg03, @arg04, @arg05, @arg06,
 @arg07, @arg08, @arg09 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	t_many_col_types	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	<derived6>	ALL	NULL	NULL	NULL	NULL	2	Using where
 6	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	
 5	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
diff --git a/mysql-test/r/rpl_drop.result b/mysql-test/r/rpl_drop.result
new file mode 100644
index 00000000000..b83594c9bb1
--- /dev/null
+++ b/mysql-test/r/rpl_drop.result
@@ -0,0 +1,10 @@
+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, t2;
+create table t1 (a int);
+drop table t1, t2;
+ERROR 42S02: Unknown table 't2'
diff --git a/mysql-test/r/subselect2.result b/mysql-test/r/subselect2.result
index c2780a08d36..b04fec26c6f 100644
--- a/mysql-test/r/subselect2.result
+++ b/mysql-test/r/subselect2.result
@@ -120,9 +120,9 @@ DOCID	DOCNAME	DOCTYPEID	FOLDERID	AUTHOR	CREATED	TITLE	SUBTITLE	DOCABSTRACT	PUBLI
 c373e9f5ad07993f3859444553544200	Last Discussion	c373e9f5ad079174ff17444553544200	c373e9f5ad0796c0eca4444553544200	Goldilocks	2003-06-09 11:21:06	Title: Last Discussion	NULL	Setting new abstract and keeping doc checked out	2003-06-09 10:51:26	2003-06-09 10:51:26	NULL	NULL	NULL	03eea05112b845949f3fd03278b5fe43	2003-06-09 11:21:06	admin	0	NULL	Discussion	NULL	NULL
 EXPLAIN SELECT t2.*, t4.DOCTYPENAME, t1.CONTENTSIZE,t1.MIMETYPE FROM t2 INNER JOIN t4 ON t2.DOCTYPEID = t4.DOCTYPEID LEFT OUTER JOIN t1 ON t2.DOCID = t1.DOCID WHERE t2.FOLDERID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID IN(SELECT t3.FOLDERID FROM t3 WHERE t3.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t3.FOLDERNAME = 'Level1') AND t3.FOLDERNAME = 'Level2') AND t3.FOLDERNAME = 'Level3') AND t3.FOLDERNAME = 'CopiedFolder') AND t3.FOLDERNAME = 'Movie Reviews') AND t2.DOCNAME = 'Last Discussion';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	ALL	DDOCTYPEID_IDX	NULL	NULL	NULL	10	Using where
+1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	0	const row not found
+1	PRIMARY	t2	ALL	DDOCTYPEID_IDX	NULL	NULL	NULL	9	Using where
 1	PRIMARY	t4	eq_ref	PRIMARY	PRIMARY	32	test.t2.DOCTYPEID	1	
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	32	test.t2.DOCID	1	
 2	DEPENDENT SUBQUERY	t3	unique_subquery	PRIMARY,FFOLDERID_IDX	PRIMARY	32	func	1	Using index; Using where
 3	DEPENDENT SUBQUERY	t3	unique_subquery	PRIMARY,FFOLDERID_IDX	PRIMARY	32	func	1	Using index; Using where
 4	DEPENDENT SUBQUERY	t3	unique_subquery	PRIMARY,FFOLDERID_IDX	PRIMARY	32	func	1	Using index; Using where
diff --git a/mysql-test/t/create_select_tmp.test b/mysql-test/t/create_select_tmp.test
new file mode 100644
index 00000000000..166d32fb17c
--- /dev/null
+++ b/mysql-test/t/create_select_tmp.test
@@ -0,0 +1,29 @@
+# Testcase for BUG#4551
+# The bug was that when the table was TEMPORARY, it was not deleted if
+# the CREATE SELECT failed (the code intended too, but it actually
+# didn't). And as the CREATE TEMPORARY TABLE was not written to the
+# binlog if it was a transactional table, it resulted in an
+# inconsistency between binlog and the internal list of temp tables.
+
+-- source include/have_innodb.inc
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+CREATE TABLE t1 ( a int );
+INSERT INTO t1 VALUES (1),(2),(1);
+--error 1062;
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+--error 1146;
+select * from t2;
+--error 1062;
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=INNODB SELECT a FROM t1;
+--error 1146;
+select * from t2;
+--error 1062;
+CREATE TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+--error 1146;
+select * from t2;
+--error 1062;
+CREATE TEMPORARY TABLE t2 ( PRIMARY KEY (a) ) TYPE=MYISAM SELECT a FROM t1;
+--error 1146;
+select * from t2;
diff --git a/mysql-test/t/innodb.test b/mysql-test/t/innodb.test
index e0cc96ccb32..50ab3bdb8bd 100644
--- a/mysql-test/t/innodb.test
+++ b/mysql-test/t/innodb.test
@@ -959,6 +959,23 @@ update t1,t2,t3 set t3.id=5, t2.id=6, t1.id=7  where t1.id =1 and t2.id = t1.id
 update t3 set  t3.id=7  where t1.id =1 and t2.id = t1.id and t3.id = t2.id;
 drop table t3,t2,t1;
 
+#
+# test for recursion depth limit
+#
+create table t1(
+	id int primary key,
+	pid int,
+	index(pid),
+	foreign key(pid) references t1(id) on delete cascade) engine=innodb;
+insert into t1 values(0,0),(1,0),(2,1),(3,2),(4,3),(5,4),(6,5),(7,6),
+	(8,7),(9,8),(10,9),(11,10),(12,11),(13,12),(14,13),(15,14);
+-- error 1217
+delete from t1 where id=0;
+delete from t1 where id=15;
+delete from t1 where id=0;
+
+drop table t1;
+
 #
 # Test timestamps
 #
diff --git a/mysql-test/t/rpl_drop.test b/mysql-test/t/rpl_drop.test
new file mode 100644
index 00000000000..ab5b608cab6
--- /dev/null
+++ b/mysql-test/t/rpl_drop.test
@@ -0,0 +1,12 @@
+# Testcase for BUG#4552 (DROP on two tables, one of which does not
+# exist, must be binlogged with a non-zero error code)
+source include/master-slave.inc;
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+create table t1 (a int);
+--error 1051;
+drop table t1, t2;
+save_master_pos;
+connection slave;
+sync_with_master;
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 6eae315e443..21a2e338812 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -4783,8 +4783,8 @@ ha_innobase::external_lock(
 	trx->n_mysql_tables_in_use--;
 	prebuilt->mysql_has_locked = FALSE;
 	auto_inc_counter_for_this_stat = 0;
-	if (trx->n_tables_locked) {
-		row_unlock_table_for_mysql(trx);
+	if (trx->n_lock_table_exp) {
+		row_unlock_tables_for_mysql(trx);
 	}
 
 	/* If the MySQL lock count drops to zero we know that the current SQL
diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc
index b769178565b..406bff6d273 100644
--- a/sql/sql_insert.cc
+++ b/sql/sql_insert.cc
@@ -1696,9 +1696,13 @@ void select_create::abort()
     table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
     enum db_type table_type=table->db_type;
     if (!table->tmp_table)
+    {
       hash_delete(&open_cache,(byte*) table);
-    if (!create_info->table_existed)
-      quick_rm_table(table_type,db,name);
+      if (!create_info->table_existed)
+        quick_rm_table(table_type, db, name);
+    }
+    else if (!create_info->table_existed)
+      close_temporary_table(thd, db, name);
     table=0;
   }
   VOID(pthread_mutex_unlock(&LOCK_open));
diff --git a/sql/sql_load.cc b/sql/sql_load.cc
index 167fb2daf8b..8442d03c1d9 100644
--- a/sql/sql_load.cc
+++ b/sql/sql_load.cc
@@ -310,6 +310,11 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
   {
     if (transactional_table)
       ha_autocommit_or_rollback(thd,error);
+
+    if (read_file_from_client)
+      while (!read_info.next_line())
+	;
+
 #ifndef EMBEDDED_LIBRARY
     if (mysql_bin_log.is_open())
     {