Merge mysql.com:/home/jimw/my/mysql-5.1-16775

into  mysql.com:/home/jimw/my/mysql-5.1-clean

mysql-test/r/partition.result

@@ -300,3 +300,11 @@ select * from t1 where f1 = 10;
 f1	f2
 10	1
 drop table t1;
+set session storage_engine= 'memory';
+create table t1 (f_int1 int(11) default null) engine = memory
+partition by range (f_int1) subpartition by hash (f_int1)
+(partition part1 values less than (1000)
+(subpartition subpart11 engine = memory));
+set session storage_engine='myisam';
+drop table t1;
+End of 5.1 tests

mysql-test/t/partition.test

@@ -380,3 +380,16 @@ partition partf values less than (10000));
 insert into t1 values(10,1);
 select * from t1 where f1 = 10;
 drop table t1;
+
+#
+# Bug #16775: Wrong engine type stored for subpartition
+#
+set session storage_engine= 'memory';
+create table t1 (f_int1 int(11) default null) engine = memory
+  partition by range (f_int1) subpartition by hash (f_int1)
+  (partition part1 values less than (1000)
+   (subpartition subpart11 engine = memory));
+set session storage_engine='myisam';
+drop table t1;
+
+--echo End of 5.1 tests

sql/ha_partition.cc

@@ -1937,7 +1937,8 @@ bool ha_partition::create_handler_file(const char *name)
 	name_buffer_ptr+= name_add(name_buffer_ptr,
 				   part_name,
 				   subpart_name);
-	*engine_array= (uchar) ha_legacy_type(part_elem->engine_type);
+        *engine_array= (uchar) ha_legacy_type(subpart_elem->engine_type);
+        DBUG_PRINT("info", ("engine: %u", *engine_array));
 	engine_array++;
       }
     }
@@ -1954,7 +1955,7 @@ bool ha_partition::create_handler_file(const char *name)
     Create and write and close file
     to be used at open, delete_table and rename_table
   */
-  fn_format(file_name, name, "", ".par", MY_APPEND_EXT);
+  fn_format(file_name, name, "", ha_par_ext, MY_APPEND_EXT);
   if ((file= my_create(file_name, CREATE_MODE, O_RDWR | O_TRUNC,
 		       MYF(MY_WME))) >= 0)
   {