merge

mysql-test/r/ps.result

@@ -179,3 +179,16 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 2	DEPENDENT SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	const row not found
 deallocate prepare stmt1;
 drop tables t1,t2;
+set @arg00=1;
+prepare stmt1 from ' create table t1 (m int) as select 1 as m ' ;
+execute stmt1 ;
+select m from t1;
+m
+1
+drop table t1;
+prepare stmt1 from ' create table t1 (m int) as select ? as m ' ;
+execute stmt1 using @arg00;
+select m from t1;
+m
+1
+drop table t1;

mysql-test/t/ps.test

@@ -166,3 +166,16 @@ execute stmt1 ;
 explain SELECT (SELECT SUM(c1 + c12 + 0.0) FROM t2 where (t1.c2 - 0e-3) = t2.c2 GROUP BY t1.c15 LIMIT 1) as scalar_s, exists (select 1.0e+0 from t2 where t2.c3 * 9.0000000000 = t1.c4) as exists_s, c5 * 4 in (select c6 + 0.3e+1 from t2) as in_s, (c7 - 4, c8 - 4) in (select c9 + 4.0, c10 + 40e-1 from t2) as in_row_s FROM t1, (select c25 x, c32 y from t2) tt WHERE x * 1 = c25;
 deallocate prepare stmt1;
 drop tables t1,t2;
+
+#
+# parameters from variables (for field creation)
+#
+set @arg00=1;
+prepare stmt1 from ' create table t1 (m int) as select 1 as m ' ;
+execute stmt1 ;
+select m from t1;
+drop table t1;
+prepare stmt1 from ' create table t1 (m int) as select ? as m ' ;
+execute stmt1 using @arg00;
+select m from t1;
+drop table t1;

sql/item.cc

@@ -759,9 +759,13 @@ bool Item_param::set_from_user_var(THD *thd, const user_var_entry *entry)
     switch (entry->type) {
     case REAL_RESULT:
       set_double(*(double*)entry->value);
+      item_type= Item::REAL_ITEM;
+      item_result_type= REAL_RESULT;
       break;
     case INT_RESULT:
       set_int(*(longlong*)entry->value, 21);
+      item_type= Item::INT_ITEM;
+      item_result_type= INT_RESULT;
       break;
     case STRING_RESULT:
     {