merged

BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
Docs/Support/texi2html:
  Auto merged
client/mysqltest.c:
  Auto merged
innobase/lock/lock0lock.c:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
mysql-test/r/fulltext.result:
  Auto merged
mysql-test/r/heap.result:
  Auto merged
mysql-test/r/key.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/r/rpl000015.result:
  Auto merged
mysql-test/r/rpl_log_pos.result:
  Auto merged
mysql-test/r/rpl_rotate_logs.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/r/type_blob.result:
  Auto merged
mysql-test/t/key.test:
  Auto merged
mysql-test/t/myisam.test:
  Auto merged
mysql-test/t/rpl000015.test:
  Auto merged
mysql-test/t/rpl_log_pos.test:
  Auto merged
mysql-test/t/rpl_rotate_logs.test:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/ha_ndbcluster.h:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_do.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged

1 files changed, 15 insertions, 0 deletions

diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index ceb8919b26a..20ab3ac8f80 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -1998,3 +1998,18 @@ ac
 700
 NULL
 drop tables t1,t2;
+create table t1 (a int not null, b int not null, c int, primary key (a,b));
+insert into t1 values (1,1,1), (2,2,2), (3,3,3);
+set @b:= 0;
+explain select sum(a) from t1 where b > @b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	8	NULL	3	Using where; Using index
+set @a:= (select sum(a) from t1 where b > @b);
+explain select a from t1 where c=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+do @a:= (select sum(a) from t1 where b > @b);
+explain select a from t1 where c=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+drop table t1;