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10.0-base merge

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Sergei Golubchik
2014-02-03 15:22:39 +01:00
parent 5e1d5d9bc0 2acc01b3cf
commit 72c20282db
280 changed files with 13377 additions and 762 deletions
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48
mysql-test/r/innodb_ext_key.result
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@ -991,6 +991,54 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref page_timestamp page_timestamp 4 const 10 Using where
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.rev_text_id 1
DROP TABLE t1,t2,t3;
#
# MDEV-5424 SELECT using ORDER BY DESC and LIMIT produces unexpected
# results (InnoDB/XtraDB)
#
create table t1 (a bigint not null unique auto_increment, b varchar(10), primary key (a), key (b(2))) engine = myisam default character set utf8;
create table t2 (a bigint not null unique auto_increment, b varchar(10), primary key (a), key (b(2))) engine = innodb default character set utf8;
insert into t1 (b) values (null), (null), (null);
insert into t2 (b) values (null), (null), (null);
set optimizer_switch='extended_keys=on';
explain select a from t1 where b is null order by a desc limit 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref b b 9 const 2 Using where; Using filesort
select a from t1 where b is null order by a desc limit 2;
a
3
2
explain select a from t2 where b is null order by a desc limit 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range b b 9 NULL 3 Using where; Using filesort
select a from t2 where b is null order by a desc limit 2;
a
3
2
set optimizer_switch='extended_keys=off';
explain select a from t2 where b is null order by a desc limit 2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range b b 9 NULL 3 Using where; Using filesort
select a from t2 where b is null order by a desc limit 2;
a
3
2
explain select a from t2 where b is null order by a desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 index b PRIMARY 8 NULL 3 Using where
select a from t2 where b is null order by a desc;
a
3
2
1
explain select a from t2 where b is null order by a desc,a,a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 index b PRIMARY 8 NULL 3 Using where
select a from t2 where b is null order by a desc,a,a;
a
3
2
1
drop table t1, t2;
set optimizer_switch=@save_optimizer_switch;
set optimizer_switch=@save_ext_key_optimizer_switch;
SET SESSION STORAGE_ENGINE=DEFAULT;