diff options
Diffstat (limited to 'mysql-test/r/update.result')
| -rw-r--r-- | mysql-test/r/update.result | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/mysql-test/r/update.result b/mysql-test/r/update.result index d6c1118f90c..3408766d603 100644 --- a/mysql-test/r/update.result +++ b/mysql-test/r/update.result @@ -263,3 +263,77 @@ test delete from t1 where count(*)=1; ERROR HY000: Invalid use of group function drop table t1; +create table t1 ( a int, b int default 0, index (a) ); +insert into t1 (a) values (0),(0),(0),(0),(0),(0),(0),(0); +flush status; +select a from t1 order by a limit 1; +a +0 +show status like 'handler_read%'; +Variable_name Value +Handler_read_first 1 +Handler_read_key 0 +Handler_read_next 0 +Handler_read_prev 0 +Handler_read_rnd 0 +Handler_read_rnd_next 0 +flush status; +update t1 set a=9999 order by a limit 1; +update t1 set b=9999 order by a limit 1; +show status like 'handler_read%'; +Variable_name Value +Handler_read_first 1 +Handler_read_key 0 +Handler_read_next 0 +Handler_read_prev 0 +Handler_read_rnd 2 +Handler_read_rnd_next 9 +flush status; +delete from t1 order by a limit 1; +show status like 'handler_read%'; +Variable_name Value +Handler_read_first 1 +Handler_read_key 0 +Handler_read_next 0 +Handler_read_prev 0 +Handler_read_rnd 0 +Handler_read_rnd_next 0 +flush status; +delete from t1 order by a desc limit 1; +show status like 'handler_read%'; +Variable_name Value +Handler_read_first 0 +Handler_read_key 0 +Handler_read_next 0 +Handler_read_prev 0 +Handler_read_rnd 1 +Handler_read_rnd_next 9 +alter table t1 disable keys; +flush status; +delete from t1 order by a limit 1; +show status like 'handler_read%'; +Variable_name Value +Handler_read_first 0 +Handler_read_key 0 +Handler_read_next 0 +Handler_read_prev 0 +Handler_read_rnd 1 +Handler_read_rnd_next 9 +select * from t1; +a b +0 0 +0 0 +0 0 +0 0 +0 0 +update t1 set a=a+10,b=1 order by a limit 3; +update t1 set a=a+11,b=2 order by a limit 3; +update t1 set a=a+12,b=3 order by a limit 3; +select * from t1 order by a; +a b +11 2 +21 2 +22 3 +22 3 +23 3 +drop table t1; |