Merge branch '5.5' into 10.0

18 files changed, 50 insertions, 247 deletions

diff --git a/include/heap.h b/include/heap.h
index 724cf6c5f98..e92f649b87b 100644
--- a/include/heap.h
+++ b/include/heap.h
@@ -144,6 +144,7 @@ typedef struct st_heap_share
   uint key_version;                     /* Updated on key change */
   uint file_version;                    /* Update on clear */
   uint reclength;			/* Length of one record */
+  uint visible;                         /* Offset to the visible/deleted mark */
   uint changed;
   uint keys,max_key_length;
   uint currently_disabled_keys;    /* saved value from "keys" when disabled */
diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result
index 5a51ea85f55..08b94186d77 100644
--- a/mysql-test/r/view.result
+++ b/mysql-test/r/view.result
@@ -5236,114 +5236,6 @@ execute stmt1;
 deallocate prepare stmt1;
 drop view v1,v2;
 drop table t1,t2;
-#
-# MDEV-6251: SIGSEGV in query optimizer (in set_check_materialized 
-# with MERGE view)
-#
-CREATE TABLE t1 (a1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t2 (b1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t3 (c1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t4 (d1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t5 (e1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t6 (f1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE OR REPLACE view v1 AS
-SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-;
-SELECT 1
-FROM ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t1)
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t2) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t3) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t4) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t5) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t6) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t7) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-FROM t1 a_alias_1
-LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t8) ON 1=1
-;
-1
-SELECT 1
-FROM (v1 t1)
-LEFT OUTER JOIN (v1 t2) ON 1=1
-LEFT OUTER JOIN (v1 t3) ON 1=1
-LEFT OUTER JOIN (v1 t4) ON 1=1
-LEFT OUTER JOIN (v1 t5) ON 1=1
-LEFT OUTER JOIN (v1 t6) ON 1=1
-LEFT OUTER JOIN (v1 t7) ON 1=1
-LEFT OUTER JOIN (v1 t8) ON 1=1
-;
-1
-drop view v1;
-drop table t1,t2,t3,t4,t5,t6;
 # -----------------------------------------------------------------
 # -- End of 5.3 tests.
 # -----------------------------------------------------------------
diff --git a/mysql-test/suite/maria/dynamic.result b/mysql-test/suite/maria/dynamic.result
new file mode 100644
index 00000000000..1e87010e9ca
--- /dev/null
+++ b/mysql-test/suite/maria/dynamic.result
@@ -0,0 +1,4 @@
+create table t1 (a blob, b varchar(20000)) engine=aria row_format=dynamic;
+insert t1 (b) values (repeat('a', 20000));
+update t1 set b='b';
+drop table t1;
diff --git a/mysql-test/suite/maria/dynamic.test b/mysql-test/suite/maria/dynamic.test
new file mode 100644
index 00000000000..f8a1e98cd41
--- /dev/null
+++ b/mysql-test/suite/maria/dynamic.test
@@ -0,0 +1,7 @@
+#
+# MDEV-13748 Assertion `status_var.local_memory_used == 0 || !debug_assert_on_not_freed_memory' failed in virtual THD::~THD after query with INTERSECT
+#
+create table t1 (a blob, b varchar(20000)) engine=aria row_format=dynamic;
+insert t1 (b) values (repeat('a', 20000));
+update t1 set b='b';
+drop table t1;
diff --git a/mysql-test/suite/parts/r/partition_alter_maria.result b/mysql-test/suite/parts/r/partition_alter_maria.result
index fd09c0bd4bb..7d923570cfe 100644
--- a/mysql-test/suite/parts/r/partition_alter_maria.result
+++ b/mysql-test/suite/parts/r/partition_alter_maria.result
@@ -16,6 +16,15 @@ select * from t1;
 pk	dt
 1	2017-09-28 15:12:00
 drop table t1;
+create table t1 (a int) engine=Aria transactional=1 partition by hash(a) partitions 2;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=Aria DEFAULT CHARSET=latin1 TRANSACTIONAL=1
+/*!50100 PARTITION BY HASH (a)
+PARTITIONS 2 */
+drop table t1;
 #
 # MDEV-14641 Incompatible key or row definition between the MariaDB .frm file and the information in the storage engine
 #
diff --git a/mysql-test/suite/parts/t/partition_alter_maria.test b/mysql-test/suite/parts/t/partition_alter_maria.test
index e21f0dfab82..e0b9256391d 100644
--- a/mysql-test/suite/parts/t/partition_alter_maria.test
+++ b/mysql-test/suite/parts/t/partition_alter_maria.test
@@ -17,5 +17,12 @@ alter table t1 drop partition p20181231;
 select * from t1;
 drop table t1;
 
+#
+# MDEV-13982 Server crashes in in ha_partition::engine_name
+#
+create table t1 (a int) engine=Aria transactional=1 partition by hash(a) partitions 2;
+show create table t1;
+drop table t1;
+
 --let $engine=Aria
 --source inc/part_alter_values.inc
diff --git a/mysql-test/suite/plugins/t/server_audit.test b/mysql-test/suite/plugins/t/server_audit.test
index 9be0d5556f0..6c5eaffd9a2 100644
--- a/mysql-test/suite/plugins/t/server_audit.test
+++ b/mysql-test/suite/plugins/t/server_audit.test
@@ -42,8 +42,10 @@ select 1,
         3;
 insert into t2 values (1), (2);
 select * from t2;
+--disable_ps_protocol
 --error ER_NO_SUCH_TABLE
 select * from t_doesnt_exist;
+--enable_ps_protocol
 --error 1064
 syntax_error_query;
 drop table renamed_t1, t2;
diff --git a/mysql-test/t/view.test b/mysql-test/t/view.test
index 4885dcc74c1..fcf95c2500f 100644
--- a/mysql-test/t/view.test
+++ b/mysql-test/t/view.test
@@ -5170,118 +5170,6 @@ deallocate prepare stmt1;
 drop view v1,v2;
 drop table t1,t2;
 
---echo #
---echo # MDEV-6251: SIGSEGV in query optimizer (in set_check_materialized 
---echo # with MERGE view)
---echo #
-
-CREATE TABLE t1 (a1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t2 (b1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t3 (c1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t4 (d1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t5 (e1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-CREATE TABLE t6 (f1 INT(11) NOT NULL DEFAULT NULL AUTO_INCREMENT PRIMARY KEY);
-  
-CREATE OR REPLACE view v1 AS
-  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-;
-
-SELECT 1
-FROM ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t1)
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t2) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t3) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t4) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t5) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t6) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t7) ON 1=1
-LEFT OUTER JOIN ((  SELECT 1
-  FROM t1 a_alias_1
-    LEFT JOIN (t2 b_alias_1 JOIN t1 a_alias_2) ON b_alias_1.b1 = a_alias_1.a1 AND a_alias_2.a1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_1 ON c_alias_1.c1 = a_alias_1.a1
-    LEFT JOIN t4 d_alias_1 ON d_alias_1.d1 = a_alias_1.a1
-    LEFT JOIN t3 c_alias_2 ON c_alias_2.c1 = a_alias_1.a1
-    LEFT JOIN t5 e_alias_1 ON e_alias_1.e1 = a_alias_1.a1
-    LEFT JOIN t6 f_alias_1 ON f_alias_1.f1 = a_alias_1.a1
-) t8) ON 1=1
-;
-
-SELECT 1
-FROM (v1 t1)
-LEFT OUTER JOIN (v1 t2) ON 1=1
-LEFT OUTER JOIN (v1 t3) ON 1=1
-LEFT OUTER JOIN (v1 t4) ON 1=1
-LEFT OUTER JOIN (v1 t5) ON 1=1
-LEFT OUTER JOIN (v1 t6) ON 1=1
-LEFT OUTER JOIN (v1 t7) ON 1=1
-LEFT OUTER JOIN (v1 t8) ON 1=1
-;
-
-drop view v1;
-drop table t1,t2,t3,t4,t5,t6;
-
 --echo # -----------------------------------------------------------------
 --echo # -- End of 5.3 tests.
 --echo # -----------------------------------------------------------------
diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index be5906ec8e6..607f20d2396 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -4192,7 +4192,7 @@ mysql_prepare_create_table(THD *thd, HA_CREATE_INFO *create_info,
   /* Give warnings for not supported table options */
 #if defined(WITH_ARIA_STORAGE_ENGINE)
   extern handlerton *maria_hton;
-  if (file->ht != maria_hton)
+  if (file->partition_ht() != maria_hton)
 #endif
     if (create_info->transactional)
       push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
diff --git a/storage/heap/_check.c b/storage/heap/_check.c
index b64c9ab1831..f2fd8ab94be 100644
--- a/storage/heap/_check.c
+++ b/storage/heap/_check.c
@@ -79,7 +79,7 @@ int heap_check_heap(HP_INFO *info, my_bool print_status)
     }
     hp_find_record(info,pos);
 
-    if (!info->current_ptr[share->reclength])
+    if (!info->current_ptr[share->visible])
       deleted++;
     else
       records++;
diff --git a/storage/heap/ha_heap.cc b/storage/heap/ha_heap.cc
index c1dad6a9943..29bf924dc26 100644
--- a/storage/heap/ha_heap.cc
+++ b/storage/heap/ha_heap.cc
@@ -91,15 +91,6 @@ ha_heap::ha_heap(handlerton *hton, TABLE_SHARE *table_arg)
 
 int ha_heap::open(const char *name, int mode, uint test_if_locked)
 {
-  if (table->s->reclength < sizeof (char*))
-  {
-    MEM_UNDEFINED(table->s->default_values + table->s->reclength,
-                  sizeof(char*) - table->s->reclength);
-    table->s->reclength= sizeof(char*);
-    MEM_UNDEFINED(table->record[0], table->s->reclength);
-    MEM_UNDEFINED(table->record[1], table->s->reclength);
-  }
-
   internal_table= MY_TEST(test_if_locked & HA_OPEN_INTERNAL_TABLE);
   if (internal_table || (!(file= heap_open(name, mode)) && my_errno == ENOENT))
   {
@@ -723,7 +714,7 @@ heap_prepare_hp_create_info(TABLE *table_arg, bool internal_table,
       }
     }
   }
-  mem_per_row+= MY_ALIGN(share->reclength + 1, sizeof(char*));
+  mem_per_row+= MY_ALIGN(MY_MAX(share->reclength, sizeof(char*)) + 1, sizeof(char*));
   if (table_arg->found_next_number_field)
   {
     keydef[share->next_number_index].flag|= HA_AUTO_KEY;
diff --git a/storage/heap/hp_create.c b/storage/heap/hp_create.c
index d03c7c46f15..29c031c466c 100644
--- a/storage/heap/hp_create.c
+++ b/storage/heap/hp_create.c
@@ -33,6 +33,7 @@ int heap_create(const char *name, HP_CREATE_INFO *create_info,
   uint keys= create_info->keys;
   ulong min_records= create_info->min_records;
   ulong max_records= create_info->max_records;
+  uint visible_offset;
   DBUG_ENTER("heap_create");
 
   if (!create_info->internal_table)
@@ -58,9 +59,9 @@ int heap_create(const char *name, HP_CREATE_INFO *create_info,
     
     /*
       We have to store sometimes uchar* del_link in records,
-      so the record length should be at least sizeof(uchar*)
+      so the visible_offset must be least at sizeof(uchar*)
     */
-    set_if_bigger(reclength, sizeof (uchar*));
+    visible_offset= MY_MAX(reclength, sizeof (char*));
     
     for (i= key_segs= max_length= 0, keyinfo= keydef; i < keys; i++, keyinfo++)
     {
@@ -154,7 +155,7 @@ int heap_create(const char *name, HP_CREATE_INFO *create_info,
     share->keydef= (HP_KEYDEF*) (share + 1);
     share->key_stat_version= 1;
     keyseg= (HA_KEYSEG*) (share->keydef + keys);
-    init_block(&share->block, reclength + 1, min_records, max_records);
+    init_block(&share->block, visible_offset + 1, min_records, max_records);
 	/* Fix keys */
     memcpy(share->keydef, keydef, (size_t) (sizeof(keydef[0]) * keys));
     for (i= 0, keyinfo= share->keydef; i < keys; i++, keyinfo++)
@@ -196,6 +197,7 @@ int heap_create(const char *name, HP_CREATE_INFO *create_info,
     share->max_table_size= create_info->max_table_size;
     share->data_length= share->index_length= 0;
     share->reclength= reclength;
+    share->visible= visible_offset;
     share->blength= 1;
     share->keys= keys;
     share->max_key_length= max_length;
diff --git a/storage/heap/hp_delete.c b/storage/heap/hp_delete.c
index 1cbfe7408d4..eb9749601aa 100644
--- a/storage/heap/hp_delete.c
+++ b/storage/heap/hp_delete.c
@@ -45,7 +45,7 @@ int heap_delete(HP_INFO *info, const uchar *record)
   info->update=HA_STATE_DELETED;
   *((uchar**) pos)=share->del_link;
   share->del_link=pos;
-  pos[share->reclength]=0;		/* Record deleted */
+  pos[share->visible]=0;		/* Record deleted */
   share->deleted++;
   share->key_version++;
 #if !defined(DBUG_OFF) && defined(EXTRA_HEAP_DEBUG)
diff --git a/storage/heap/hp_rrnd.c b/storage/heap/hp_rrnd.c
index 8e0d51a78ca..d105c5c2e13 100644
--- a/storage/heap/hp_rrnd.c
+++ b/storage/heap/hp_rrnd.c
@@ -37,7 +37,7 @@ int heap_rrnd(register HP_INFO *info, uchar *record, uchar *pos)
     info->update= 0;
     DBUG_RETURN(my_errno= HA_ERR_END_OF_FILE);
   }
-  if (!info->current_ptr[share->reclength])
+  if (!info->current_ptr[share->visible])
   {
     info->update= HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND;
     DBUG_RETURN(my_errno=HA_ERR_RECORD_DELETED);
@@ -91,7 +91,7 @@ int heap_rrnd_old(register HP_INFO *info, uchar *record, ulong pos)
   hp_find_record(info, pos);
 
 end:
-  if (!info->current_ptr[share->reclength])
+  if (!info->current_ptr[share->visible])
   {
     info->update= HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND;
     DBUG_RETURN(my_errno=HA_ERR_RECORD_DELETED);
diff --git a/storage/heap/hp_rsame.c b/storage/heap/hp_rsame.c
index 40c5a18f974..19767fd752b 100644
--- a/storage/heap/hp_rsame.c
+++ b/storage/heap/hp_rsame.c
@@ -32,7 +32,7 @@ int heap_rsame(register HP_INFO *info, uchar *record, int inx)
   DBUG_ENTER("heap_rsame");
 
   test_active(info);
-  if (info->current_ptr[share->reclength])
+  if (info->current_ptr[share->visible])
   {
     if (inx < -1 || inx >= (int) share->keys)
     {
diff --git a/storage/heap/hp_scan.c b/storage/heap/hp_scan.c
index 39a6f2082a3..65726c37e1f 100644
--- a/storage/heap/hp_scan.c
+++ b/storage/heap/hp_scan.c
@@ -62,7 +62,7 @@ int heap_scan(register HP_INFO *info, uchar *record)
     }
     hp_find_record(info, pos);
   }
-  if (!info->current_ptr[share->reclength])
+  if (!info->current_ptr[share->visible])
   {
     DBUG_PRINT("warning",("Found deleted record"));
     info->update= HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND;
diff --git a/storage/heap/hp_write.c b/storage/heap/hp_write.c
index c6205508a90..277ed4e5259 100644
--- a/storage/heap/hp_write.c
+++ b/storage/heap/hp_write.c
@@ -54,7 +54,7 @@ int heap_write(HP_INFO *info, const uchar *record)
   }
 
   memcpy(pos,record,(size_t) share->reclength);
-  pos[share->reclength]=1;		/* Mark record as not deleted */
+  pos[share->visible]= 1;                     /* Mark record as not deleted */
   if (++share->records == share->blength)
     share->blength+= share->blength;
   info->s->key_version++;
@@ -92,7 +92,7 @@ err:
   share->deleted++;
   *((uchar**) pos)=share->del_link;
   share->del_link=pos;
-  pos[share->reclength]=0;			/* Record deleted */
+  pos[share->visible]= 0;                                 /* Record deleted */
 
   DBUG_RETURN(my_errno);
 } /* heap_write */
diff --git a/storage/maria/ma_dynrec.c b/storage/maria/ma_dynrec.c
index 9fed9dbe8da..ffc42615258 100644
--- a/storage/maria/ma_dynrec.c
+++ b/storage/maria/ma_dynrec.c
@@ -276,7 +276,7 @@ my_bool _ma_update_blob_record(MARIA_HA *info, MARIA_RECORD_POS pos,
 {
   uchar *rec_buff;
   int error;
-  ulong reclength,extra;
+  ulong reclength,reclength2,extra;
 
   extra= (ALIGN_SIZE(MARIA_MAX_DYN_BLOCK_HEADER)+MARIA_SPLIT_LENGTH+
 	  MARIA_DYN_DELETE_BLOCK_HEADER);
@@ -289,17 +289,17 @@ my_bool _ma_update_blob_record(MARIA_HA *info, MARIA_RECORD_POS pos,
     return 1;
   }
 #endif
-  if (!(rec_buff=(uchar*) my_safe_alloca(reclength,
-                                         MARIA_MAX_RECORD_ON_STACK)))
+  if (!(rec_buff=(uchar*) my_safe_alloca(reclength, MARIA_MAX_RECORD_ON_STACK)))
   {
     my_errno= HA_ERR_OUT_OF_MEM; /* purecov: inspected */
     return(1);
   }
-  reclength= _ma_rec_pack(info,rec_buff+ALIGN_SIZE(MARIA_MAX_DYN_BLOCK_HEADER),
+  reclength2= _ma_rec_pack(info,rec_buff+ALIGN_SIZE(MARIA_MAX_DYN_BLOCK_HEADER),
 			 record);
+  DBUG_ASSERT(reclength2 <= reclength);
   error=update_dynamic_record(info,pos,
 			      rec_buff+ALIGN_SIZE(MARIA_MAX_DYN_BLOCK_HEADER),
-			      reclength);
+			      reclength2);
   my_safe_afree(rec_buff, reclength, MARIA_MAX_RECORD_ON_STACK);
   return(error != 0);
 }