Commit 9c9a9b5e authored by Timothy Smith's avatar Timothy Smith

Up-merge from 5.0

parents cd7d25f4 b7565032
...@@ -40,6 +40,8 @@ drop table t1; ...@@ -40,6 +40,8 @@ drop table t1;
create table t1 (a bit) engine=innodb; create table t1 (a bit) engine=innodb;
insert into t1 values (b'0'), (b'1'), (b'000'), (b'100'), (b'001'); insert into t1 values (b'0'), (b'1'), (b'000'), (b'100'), (b'001');
select hex(a) from t1; select hex(a) from t1;
# It is not deterministic which duplicate will be seen first
--replace_regex /(.*Duplicate entry )'.*'( for key.*)/\1''\2/
--error ER_DUP_ENTRY --error ER_DUP_ENTRY
alter table t1 add unique (a); alter table t1 add unique (a);
drop table t1; drop table t1;
......
When comparing with ms-sql:
Check how to get MySQL faster mysql ms-sql
count_distinct (2000) | 89.00| 39.00|
count_distinct_big (120) | 324.00| 121.00|
count_distinct_group (1000) | 158.00| 107.00|
count_distinct_group_on_key (1000) | 49.00| 17.00|
count_distinct_group_on_key_parts (1| 157.00| 108.00|
order_by_big (10) | 197.00| 89.00|
order_by_big_key (10) | 170.00| 82.00|
order_by_big_key2 (10) | 163.00| 73.00|
order_by_big_key_desc (10) | 172.00| 84.00|
order_by_big_key_diff (10) | 193.00| 89.00|
order_by_big_key_prefix (10) | 165.00| 72.00|
Why is the following slow on NT:
NT Linux
update_of_primary_key_many_keys (256| 560.00| 65.00|
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment