Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
M
MariaDB
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
nexedi
MariaDB
Commits
ed8a171e
Commit
ed8a171e
authored
May 22, 2006
by
unknown
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Move innodb dependent tests to group_min_max_innodb
parent
0dbe99f8
Changes
4
Show whitespace changes
Inline
Side-by-side
Showing
4 changed files
with
174 additions
and
74 deletions
+174
-74
mysql-test/r/group_min_max.result
mysql-test/r/group_min_max.result
+1
-40
mysql-test/r/group_min_max_innodb.result
mysql-test/r/group_min_max_innodb.result
+72
-0
mysql-test/t/group_min_max.test
mysql-test/t/group_min_max.test
+6
-34
mysql-test/t/group_min_max_innodb.test
mysql-test/t/group_min_max_innodb.test
+95
-0
No files found.
mysql-test/r/group_min_max.result
View file @
ed8a171e
...
...
@@ -1981,46 +1981,7 @@ a
b
c
d
create table t4 (
pk_col int auto_increment primary key, a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' '
) engine=innodb;
insert into t4 (a1, a2, b, c, d, dummy) select * from t1;
create index idx12672_0 on t4 (a1);
create index idx12672_1 on t4 (a1,a2,b,c);
create index idx12672_2 on t4 (a1,a2,b);
analyze table t1;
Table Op Msg_type Msg_text
test.t1 analyze status Table is already up to date
select distinct a1 from t4 where pk_col not in (1,2,3,4);
a1
a
b
c
d
drop table t1,t2,t3,t4;
create table t1 (
a varchar(30), b varchar(30), primary key(a), key(b)
) engine=innodb;
select distinct a from t1;
a
drop table t1;
create table t1(a int, key(a)) engine=innodb;
insert into t1 values(1);
select a, count(a) from t1 group by a with rollup;
a count(a)
1 1
NULL 1
drop table t1;
create table t1 (f1 int, f2 char(1), primary key(f1,f2)) engine=innodb;
insert into t1 values ( 1,"e"),(2,"a"),( 3,"c"),(4,"d");
alter table t1 drop primary key, add primary key (f2, f1);
explain select distinct f1 a, f1 b from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL PRIMARY 5 NULL 4 Using index; Using temporary
explain select distinct f1, f2 from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL PRIMARY 5 NULL 3 Using index for group-by; Using temporary
drop table t1;
drop table t1,t2,t3;
create table t1 (c1 int not null,c2 int not null, primary key(c1,c2));
insert into t1 (c1,c2) values
(10,1),(10,2),(10,3),(20,4),(20,5),(20,6),(30,7),(30,8),(30,9);
...
...
mysql-test/r/group_min_max_innodb.result
0 → 100644
View file @
ed8a171e
create table t4 (
pk_col int auto_increment primary key, a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' '
) engine=innodb;
insert into t4 (a1, a2, b, c, d) values
('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'),
('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4');
create index idx12672_0 on t4 (a1);
create index idx12672_1 on t4 (a1,a2,b,c);
create index idx12672_2 on t4 (a1,a2,b);
analyze table t4;
Table Op Msg_type Msg_text
test.t4 analyze status OK
select distinct a1 from t4 where pk_col not in (1,2,3,4);
a1
a
b
c
d
drop table t4;
create table t1 (
a varchar(30), b varchar(30), primary key(a), key(b)
) engine=innodb;
select distinct a from t1;
a
drop table t1;
create table t1(a int, key(a)) engine=innodb;
insert into t1 values(1);
select a, count(a) from t1 group by a with rollup;
a count(a)
1 1
NULL 1
drop table t1;
create table t1 (f1 int, f2 char(1), primary key(f1,f2)) engine=innodb;
insert into t1 values ( 1,"e"),(2,"a"),( 3,"c"),(4,"d");
alter table t1 drop primary key, add primary key (f2, f1);
explain select distinct f1 a, f1 b from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL PRIMARY 5 NULL 4 Using index; Using temporary
explain select distinct f1, f2 from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL PRIMARY 5 NULL 3 Using index for group-by; Using temporary
drop table t1;
mysql-test/t/group_min_max.test
View file @
ed8a171e
...
...
@@ -3,8 +3,6 @@
# The queries in this file test query execution via QUICK_GROUP_MIN_MAX_SELECT.
#
--
source
include
/
have_innodb
.
inc
#
# TODO:
# Add queries with:
...
...
@@ -664,55 +662,29 @@ select distinct a1 from t1 where a2 = 'b';
#
# Bug #12672: primary key implcitly included in every innodb index
#
# Test case moved to group_min_max_innodb
--
disable_warnings
create
table
t4
(
pk_col
int
auto_increment
primary
key
,
a1
char
(
64
),
a2
char
(
64
),
b
char
(
16
),
c
char
(
16
)
not
null
,
d
char
(
16
),
dummy
char
(
64
)
default
' '
)
engine
=
innodb
;
--
enable_warnings
insert
into
t4
(
a1
,
a2
,
b
,
c
,
d
,
dummy
)
select
*
from
t1
;
create
index
idx12672_0
on
t4
(
a1
);
create
index
idx12672_1
on
t4
(
a1
,
a2
,
b
,
c
);
create
index
idx12672_2
on
t4
(
a1
,
a2
,
b
);
analyze
table
t1
;
select
distinct
a1
from
t4
where
pk_col
not
in
(
1
,
2
,
3
,
4
);
drop
table
t1
,
t2
,
t3
,
t4
;
drop
table
t1
,
t2
,
t3
;
#
# Bug #6142: a problem with the empty innodb table
#
# Test case moved to group_min_max_innodb
--
disable_warnings
create
table
t1
(
a
varchar
(
30
),
b
varchar
(
30
),
primary
key
(
a
),
key
(
b
)
)
engine
=
innodb
;
--
enable_warnings
select
distinct
a
from
t1
;
drop
table
t1
;
#
# Bug #9798: group by with rollup
#
# Test case moved to group_min_max_innodb
--
disable_warnings
create
table
t1
(
a
int
,
key
(
a
))
engine
=
innodb
;
--
enable_warnings
insert
into
t1
values
(
1
);
select
a
,
count
(
a
)
from
t1
group
by
a
with
rollup
;
drop
table
t1
;
#
# Bug #13293 Wrongly used index results in endless loop.
#
create
table
t1
(
f1
int
,
f2
char
(
1
),
primary
key
(
f1
,
f2
))
engine
=
innodb
;
insert
into
t1
values
(
1
,
"e"
),(
2
,
"a"
),(
3
,
"c"
),(
4
,
"d"
);
alter
table
t1
drop
primary
key
,
add
primary
key
(
f2
,
f1
);
explain
select
distinct
f1
a
,
f1
b
from
t1
;
explain
select
distinct
f1
,
f2
from
t1
;
drop
table
t1
;
# Test case moved to group_min_max_innodb
#
# Bug #14920 Ordering aggregated result sets with composite primary keys
...
...
mysql-test/t/group_min_max_innodb.test
0 → 100644
View file @
ed8a171e
#
# Test file for WL#1724 (Min/Max Optimization for Queries with Group By Clause).
# The queries in this file test query execution via QUICK_GROUP_MIN_MAX_SELECT
# that depends on InnoDB
#
--
source
include
/
have_innodb
.
inc
#
# Bug #12672: primary key implcitly included in every innodb index
#
--
disable_warnings
create
table
t4
(
pk_col
int
auto_increment
primary
key
,
a1
char
(
64
),
a2
char
(
64
),
b
char
(
16
),
c
char
(
16
)
not
null
,
d
char
(
16
),
dummy
char
(
64
)
default
' '
)
engine
=
innodb
;
--
enable_warnings
insert
into
t4
(
a1
,
a2
,
b
,
c
,
d
)
values
(
'a'
,
'a'
,
'a'
,
'a111'
,
'xy1'
),(
'a'
,
'a'
,
'a'
,
'b111'
,
'xy2'
),(
'a'
,
'a'
,
'a'
,
'c111'
,
'xy3'
),(
'a'
,
'a'
,
'a'
,
'd111'
,
'xy4'
),
(
'a'
,
'a'
,
'b'
,
'e112'
,
'xy1'
),(
'a'
,
'a'
,
'b'
,
'f112'
,
'xy2'
),(
'a'
,
'a'
,
'b'
,
'g112'
,
'xy3'
),(
'a'
,
'a'
,
'b'
,
'h112'
,
'xy4'
),
(
'a'
,
'b'
,
'a'
,
'i121'
,
'xy1'
),(
'a'
,
'b'
,
'a'
,
'j121'
,
'xy2'
),(
'a'
,
'b'
,
'a'
,
'k121'
,
'xy3'
),(
'a'
,
'b'
,
'a'
,
'l121'
,
'xy4'
),
(
'a'
,
'b'
,
'b'
,
'm122'
,
'xy1'
),(
'a'
,
'b'
,
'b'
,
'n122'
,
'xy2'
),(
'a'
,
'b'
,
'b'
,
'o122'
,
'xy3'
),(
'a'
,
'b'
,
'b'
,
'p122'
,
'xy4'
),
(
'b'
,
'a'
,
'a'
,
'a211'
,
'xy1'
),(
'b'
,
'a'
,
'a'
,
'b211'
,
'xy2'
),(
'b'
,
'a'
,
'a'
,
'c211'
,
'xy3'
),(
'b'
,
'a'
,
'a'
,
'd211'
,
'xy4'
),
(
'b'
,
'a'
,
'b'
,
'e212'
,
'xy1'
),(
'b'
,
'a'
,
'b'
,
'f212'
,
'xy2'
),(
'b'
,
'a'
,
'b'
,
'g212'
,
'xy3'
),(
'b'
,
'a'
,
'b'
,
'h212'
,
'xy4'
),
(
'b'
,
'b'
,
'a'
,
'i221'
,
'xy1'
),(
'b'
,
'b'
,
'a'
,
'j221'
,
'xy2'
),(
'b'
,
'b'
,
'a'
,
'k221'
,
'xy3'
),(
'b'
,
'b'
,
'a'
,
'l221'
,
'xy4'
),
(
'b'
,
'b'
,
'b'
,
'm222'
,
'xy1'
),(
'b'
,
'b'
,
'b'
,
'n222'
,
'xy2'
),(
'b'
,
'b'
,
'b'
,
'o222'
,
'xy3'
),(
'b'
,
'b'
,
'b'
,
'p222'
,
'xy4'
),
(
'c'
,
'a'
,
'a'
,
'a311'
,
'xy1'
),(
'c'
,
'a'
,
'a'
,
'b311'
,
'xy2'
),(
'c'
,
'a'
,
'a'
,
'c311'
,
'xy3'
),(
'c'
,
'a'
,
'a'
,
'd311'
,
'xy4'
),
(
'c'
,
'a'
,
'b'
,
'e312'
,
'xy1'
),(
'c'
,
'a'
,
'b'
,
'f312'
,
'xy2'
),(
'c'
,
'a'
,
'b'
,
'g312'
,
'xy3'
),(
'c'
,
'a'
,
'b'
,
'h312'
,
'xy4'
),
(
'c'
,
'b'
,
'a'
,
'i321'
,
'xy1'
),(
'c'
,
'b'
,
'a'
,
'j321'
,
'xy2'
),(
'c'
,
'b'
,
'a'
,
'k321'
,
'xy3'
),(
'c'
,
'b'
,
'a'
,
'l321'
,
'xy4'
),
(
'c'
,
'b'
,
'b'
,
'm322'
,
'xy1'
),(
'c'
,
'b'
,
'b'
,
'n322'
,
'xy2'
),(
'c'
,
'b'
,
'b'
,
'o322'
,
'xy3'
),(
'c'
,
'b'
,
'b'
,
'p322'
,
'xy4'
),
(
'd'
,
'a'
,
'a'
,
'a411'
,
'xy1'
),(
'd'
,
'a'
,
'a'
,
'b411'
,
'xy2'
),(
'd'
,
'a'
,
'a'
,
'c411'
,
'xy3'
),(
'd'
,
'a'
,
'a'
,
'd411'
,
'xy4'
),
(
'd'
,
'a'
,
'b'
,
'e412'
,
'xy1'
),(
'd'
,
'a'
,
'b'
,
'f412'
,
'xy2'
),(
'd'
,
'a'
,
'b'
,
'g412'
,
'xy3'
),(
'd'
,
'a'
,
'b'
,
'h412'
,
'xy4'
),
(
'd'
,
'b'
,
'a'
,
'i421'
,
'xy1'
),(
'd'
,
'b'
,
'a'
,
'j421'
,
'xy2'
),(
'd'
,
'b'
,
'a'
,
'k421'
,
'xy3'
),(
'd'
,
'b'
,
'a'
,
'l421'
,
'xy4'
),
(
'd'
,
'b'
,
'b'
,
'm422'
,
'xy1'
),(
'd'
,
'b'
,
'b'
,
'n422'
,
'xy2'
),(
'd'
,
'b'
,
'b'
,
'o422'
,
'xy3'
),(
'd'
,
'b'
,
'b'
,
'p422'
,
'xy4'
),
(
'a'
,
'a'
,
'a'
,
'a111'
,
'xy1'
),(
'a'
,
'a'
,
'a'
,
'b111'
,
'xy2'
),(
'a'
,
'a'
,
'a'
,
'c111'
,
'xy3'
),(
'a'
,
'a'
,
'a'
,
'd111'
,
'xy4'
),
(
'a'
,
'a'
,
'b'
,
'e112'
,
'xy1'
),(
'a'
,
'a'
,
'b'
,
'f112'
,
'xy2'
),(
'a'
,
'a'
,
'b'
,
'g112'
,
'xy3'
),(
'a'
,
'a'
,
'b'
,
'h112'
,
'xy4'
),
(
'a'
,
'b'
,
'a'
,
'i121'
,
'xy1'
),(
'a'
,
'b'
,
'a'
,
'j121'
,
'xy2'
),(
'a'
,
'b'
,
'a'
,
'k121'
,
'xy3'
),(
'a'
,
'b'
,
'a'
,
'l121'
,
'xy4'
),
(
'a'
,
'b'
,
'b'
,
'm122'
,
'xy1'
),(
'a'
,
'b'
,
'b'
,
'n122'
,
'xy2'
),(
'a'
,
'b'
,
'b'
,
'o122'
,
'xy3'
),(
'a'
,
'b'
,
'b'
,
'p122'
,
'xy4'
),
(
'b'
,
'a'
,
'a'
,
'a211'
,
'xy1'
),(
'b'
,
'a'
,
'a'
,
'b211'
,
'xy2'
),(
'b'
,
'a'
,
'a'
,
'c211'
,
'xy3'
),(
'b'
,
'a'
,
'a'
,
'd211'
,
'xy4'
),
(
'b'
,
'a'
,
'b'
,
'e212'
,
'xy1'
),(
'b'
,
'a'
,
'b'
,
'f212'
,
'xy2'
),(
'b'
,
'a'
,
'b'
,
'g212'
,
'xy3'
),(
'b'
,
'a'
,
'b'
,
'h212'
,
'xy4'
),
(
'b'
,
'b'
,
'a'
,
'i221'
,
'xy1'
),(
'b'
,
'b'
,
'a'
,
'j221'
,
'xy2'
),(
'b'
,
'b'
,
'a'
,
'k221'
,
'xy3'
),(
'b'
,
'b'
,
'a'
,
'l221'
,
'xy4'
),
(
'b'
,
'b'
,
'b'
,
'm222'
,
'xy1'
),(
'b'
,
'b'
,
'b'
,
'n222'
,
'xy2'
),(
'b'
,
'b'
,
'b'
,
'o222'
,
'xy3'
),(
'b'
,
'b'
,
'b'
,
'p222'
,
'xy4'
),
(
'c'
,
'a'
,
'a'
,
'a311'
,
'xy1'
),(
'c'
,
'a'
,
'a'
,
'b311'
,
'xy2'
),(
'c'
,
'a'
,
'a'
,
'c311'
,
'xy3'
),(
'c'
,
'a'
,
'a'
,
'd311'
,
'xy4'
),
(
'c'
,
'a'
,
'b'
,
'e312'
,
'xy1'
),(
'c'
,
'a'
,
'b'
,
'f312'
,
'xy2'
),(
'c'
,
'a'
,
'b'
,
'g312'
,
'xy3'
),(
'c'
,
'a'
,
'b'
,
'h312'
,
'xy4'
),
(
'c'
,
'b'
,
'a'
,
'i321'
,
'xy1'
),(
'c'
,
'b'
,
'a'
,
'j321'
,
'xy2'
),(
'c'
,
'b'
,
'a'
,
'k321'
,
'xy3'
),(
'c'
,
'b'
,
'a'
,
'l321'
,
'xy4'
),
(
'c'
,
'b'
,
'b'
,
'm322'
,
'xy1'
),(
'c'
,
'b'
,
'b'
,
'n322'
,
'xy2'
),(
'c'
,
'b'
,
'b'
,
'o322'
,
'xy3'
),(
'c'
,
'b'
,
'b'
,
'p322'
,
'xy4'
),
(
'd'
,
'a'
,
'a'
,
'a411'
,
'xy1'
),(
'd'
,
'a'
,
'a'
,
'b411'
,
'xy2'
),(
'd'
,
'a'
,
'a'
,
'c411'
,
'xy3'
),(
'd'
,
'a'
,
'a'
,
'd411'
,
'xy4'
),
(
'd'
,
'a'
,
'b'
,
'e412'
,
'xy1'
),(
'd'
,
'a'
,
'b'
,
'f412'
,
'xy2'
),(
'd'
,
'a'
,
'b'
,
'g412'
,
'xy3'
),(
'd'
,
'a'
,
'b'
,
'h412'
,
'xy4'
),
(
'd'
,
'b'
,
'a'
,
'i421'
,
'xy1'
),(
'd'
,
'b'
,
'a'
,
'j421'
,
'xy2'
),(
'd'
,
'b'
,
'a'
,
'k421'
,
'xy3'
),(
'd'
,
'b'
,
'a'
,
'l421'
,
'xy4'
),
(
'd'
,
'b'
,
'b'
,
'm422'
,
'xy1'
),(
'd'
,
'b'
,
'b'
,
'n422'
,
'xy2'
),(
'd'
,
'b'
,
'b'
,
'o422'
,
'xy3'
),(
'd'
,
'b'
,
'b'
,
'p422'
,
'xy4'
);
create
index
idx12672_0
on
t4
(
a1
);
create
index
idx12672_1
on
t4
(
a1
,
a2
,
b
,
c
);
create
index
idx12672_2
on
t4
(
a1
,
a2
,
b
);
analyze
table
t4
;
select
distinct
a1
from
t4
where
pk_col
not
in
(
1
,
2
,
3
,
4
);
drop
table
t4
;
#
# Bug #6142: a problem with the empty innodb table
#
--
disable_warnings
create
table
t1
(
a
varchar
(
30
),
b
varchar
(
30
),
primary
key
(
a
),
key
(
b
)
)
engine
=
innodb
;
--
enable_warnings
select
distinct
a
from
t1
;
drop
table
t1
;
#
# Bug #9798: group by with rollup
#
--
disable_warnings
create
table
t1
(
a
int
,
key
(
a
))
engine
=
innodb
;
--
enable_warnings
insert
into
t1
values
(
1
);
select
a
,
count
(
a
)
from
t1
group
by
a
with
rollup
;
drop
table
t1
;
#
# Bug #13293 Wrongly used index results in endless loop.
#
create
table
t1
(
f1
int
,
f2
char
(
1
),
primary
key
(
f1
,
f2
))
engine
=
innodb
;
insert
into
t1
values
(
1
,
"e"
),(
2
,
"a"
),(
3
,
"c"
),(
4
,
"d"
);
alter
table
t1
drop
primary
key
,
add
primary
key
(
f2
,
f1
);
explain
select
distinct
f1
a
,
f1
b
from
t1
;
explain
select
distinct
f1
,
f2
from
t1
;
drop
table
t1
;
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment