Post-merge fixes.

mysql-test/r/ndb_basic.result

@@ -667,13 +667,13 @@ counter	datavalue
 57	newval
 58	newval
 drop table t1;
+CREATE TABLE t1 ( b INT ) PACK_KEYS = 0 ENGINE = ndb;
+select * from t1;
+b
+drop table t1;
 create table atablewithareallylongandirritatingname (a int);
 insert into atablewithareallylongandirritatingname values (2);
 select * from atablewithareallylongandirritatingname;
 a
 2
 drop table atablewithareallylongandirritatingname;
-CREATE TABLE t1 ( b INT ) PACK_KEYS = 0 ENGINE = ndb;
-select * from t1;
-b
-drop table t1;

mysql-test/r/ps.result

@@ -806,3 +806,22 @@ execute stmt;
 @@tx_isolation
 REPEATABLE-READ
 deallocate prepare stmt;
+prepare stmt from "create temporary table t1 (letter enum('','a','b','c')
+not null)";
+execute stmt;
+drop table t1;
+execute stmt;
+drop table t1;
+execute stmt;
+drop table t1;
+set names latin1;
+prepare stmt from "create table t1 (a enum('test') default 'test')
+ character set utf8";
+execute stmt;
+drop table t1;
+execute stmt;
+drop table t1;
+execute stmt;
+drop table t1;
+set names default;
+deallocate prepare stmt;

mysql-test/r/select.result

@@ -2708,6 +2708,14 @@ select distinct count(f2) >0 from t1 left join t2 on f1=f3 group by f1;
 count(f2) >0
 1
 drop table t1,t2;
+create table t1 (f1 int,f2 int);
+insert into t1 values(1,1);
+create table t2 (f3 int, f4 int, primary key(f3,f4));
+insert into t2 values(1,1);
+select * from t1 where f1 in (select f3 from t2 where (f3,f4)= (select f3,f4 from t2));
+f1	f2
+1	1
+drop table t1,t2;
 CREATE TABLE t1 ( city char(30) );
 INSERT INTO t1 VALUES ('London');
 INSERT INTO t1 VALUES ('Paris');

sql/sql_table.cc

@@ -729,7 +729,7 @@ static int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
           Create the typelib in prepared statement memory if we're
           executing one.
         */
-        MEM_ROOT *stmt_root= thd->current_arena->mem_root;
+        MEM_ROOT *stmt_root= thd->stmt_arena->mem_root;
 
         interval= sql_field->interval= typelib(stmt_root,
                                                sql_field->interval_list);
@@ -763,21 +763,20 @@ static int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
       */
       if (sql_field->def && cs != sql_field->def->collation.collation)
       {
-        Item_arena backup_arena;
-        bool need_to_change_arena=
-          !thd->current_arena->is_conventional_execution();
+        Query_arena backup_arena;
+        bool need_to_change_arena= !thd->stmt_arena->is_conventional();
         if (need_to_change_arena)
         {
           /* Asser that we don't do that at every PS execute */
-          DBUG_ASSERT(thd->current_arena->is_first_stmt_execute() ||
-                      thd->current_arena->is_first_sp_execute());
-          thd->set_n_backup_item_arena(thd->current_arena, &backup_arena);
+          DBUG_ASSERT(thd->stmt_arena->is_first_stmt_execute() ||
+                      thd->stmt_arena->is_first_sp_execute());
+          thd->set_n_backup_active_arena(thd->stmt_arena, &backup_arena);
         }
 
         sql_field->def= sql_field->def->safe_charset_converter(cs);
 
         if (need_to_change_arena)
-          thd->restore_backup_item_arena(thd->current_arena, &backup_arena);
+          thd->restore_active_arena(thd->stmt_arena, &backup_arena);
 
         if (! sql_field->def)
         {