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mariadb/mysql-test/suite/parts/r/partition_datetime_innodb.result
Monty 727491b72a Added test cases for preceding test 
This includes all test changes from
"Changing all cost calculation to be given in milliseconds"
and forwards.

Some of the things that caused changes in the result files:

- As part of fixing tests, I added 'echo' to some comments to be able to
  easier find out where things where wrong.
- MATERIALIZED has now a higher cost compared to X than before. Because
  of this some MATERIALIZED types have changed to DEPENDEND SUBQUERY.
  - Some test cases that required MATERIALIZED to repeat a bug was
    changed by adding more rows to force MATERIALIZED to happen.
- 'Filtered' in SHOW EXPLAIN has in many case changed from 100.00 to
  something smaller. This is because now filtered also takes into
  account the smallest possible ref access and filters, even if they
  where not used. Another reason for 'Filtered' being smaller is that
  we now also take into account implicit filtering done for subqueries
  using FIRSTMATCH.
  (main.subselect_no_exists_to_in)
  This is caluculated in best_access_path() and stored in records_out.
- Table orders has changed because more accurate costs.
- 'index' and 'ALL' for small tables has changed to use 'range' or
   'ref' because of optimizer_scan_setup_cost.
- index can be changed to 'range' as 'range' optimizer assumes we don't
  have to read the blocks from disk that range optimizer has already read.
  This can be confusing in the case where there is no obvious where clause
  but instead there is a hidden 'key_column > NULL' added by the optimizer.
  (main.subselect_no_exists_to_in)
- Scan on primary clustered key does not report 'Using Index' anymore
  (It's a table scan, not an index scan).
- For derived tables, the number of rows is now 100 instead of 2,
  which can be seen in EXPLAIN.
- More tests have "Using index for group by" as the cost of this
  optimization is now more correct (lower).
- A primary key could be preferred for a normal key, even if it would
  access more rows, as it's faster to do 1 lokoup and 3 'index_next' on a
  clustered primary key than one lookup trough a secondary.
  (main.stat_tables_innodb)

Notes:

- There was a 4.7% more calls to best_extension_by_limited_search() in
  the main.greedy_optimizer test.  However examining the test results
  it looked that the plans where slightly better (eq_ref where more
  chained together) so I assume this is ok.
- I have verified a few test cases where there was notable/unexpected
  changes in the plan and in all cases the new optimizer plans where
  faster.  (main.greedy_optimizer and some others)
2023-02-03 00:00:35 +03:00

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create table t1 (a timestamp not null DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, primary key(a)) engine='InnoDB'
partition by key (a) (
partition pa1 max_rows=20 min_rows=2,
partition pa2 max_rows=30 min_rows=3,
partition pa3 max_rows=30 min_rows=4,
partition pa4 max_rows=40 min_rows=2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = InnoDB,
PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = InnoDB,
PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = InnoDB,
PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = InnoDB)
insert into t1 values ('1975-01-01 21:21:21'), ('2020-12-31 12:10:30'), ('1980-10-14 03:03'), ('2000-06-15 23:59');
select * from t1;
a
1975-01-01 21:21:21
1980-10-14 03:03:00
2000-06-15 23:59:00
2020-12-31 12:10:30
select * from t1 where a=19801014030300;
a
1980-10-14 03:03:00
delete from t1 where a=19801014030300;
select * from t1;
a
1975-01-01 21:21:21
2000-06-15 23:59:00
2020-12-31 12:10:30
drop table t1;
create table t2 (a timestamp not null DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, primary key(a)) engine='InnoDB'
partition by key (a) partitions 12;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
PARTITIONS 12
insert into t2 values ('1975-01-01 0:1:1'), ('2020-12-31 10:11:12'), ('1980-10-14 13:14:15'), ('2000-06-15 14:15:16');
select * from t2;
a
1975-01-01 00:01:01
1980-10-14 13:14:15
2000-06-15 14:15:16
2020-12-31 10:11:12
select * from t2 where a='1980-10-14 13:14:15';
a
1980-10-14 13:14:15
delete from t2 where a='1980-10-14 13:14:15';
select * from t2;
a
1975-01-01 00:01:01
2000-06-15 14:15:16
2020-12-31 10:11:12
delete from t2;
59 inserts;
select count(*) from t2;
count(*)
59
select * from t2;
a
1971-01-01 00:00:01
1971-01-01 00:00:02
1971-01-01 00:00:03
1971-01-01 00:00:04
1971-01-01 00:00:05
1971-01-01 00:00:06
1971-01-01 00:00:07
1971-01-01 00:00:08
1971-01-01 00:00:09
1971-01-01 00:00:10
1971-01-01 00:00:11
1971-01-01 00:00:12
1971-01-01 00:00:13
1971-01-01 00:00:14
1971-01-01 00:00:15
1971-01-01 00:00:16
1971-01-01 00:00:17
1971-01-01 00:00:18
1971-01-01 00:00:19
1971-01-01 00:00:20
1971-01-01 00:00:21
1971-01-01 00:00:22
1971-01-01 00:00:23
1971-01-01 00:00:24
1971-01-01 00:00:25
1971-01-01 00:00:26
1971-01-01 00:00:27
1971-01-01 00:00:28
1971-01-01 00:00:29
1971-01-01 00:00:30
1971-01-01 00:00:31
1971-01-01 00:00:32
1971-01-01 00:00:33
1971-01-01 00:00:34
1971-01-01 00:00:35
1971-01-01 00:00:36
1971-01-01 00:00:37
1971-01-01 00:00:38
1971-01-01 00:00:39
1971-01-01 00:00:40
1971-01-01 00:00:41
1971-01-01 00:00:42
1971-01-01 00:00:43
1971-01-01 00:00:44
1971-01-01 00:00:45
1971-01-01 00:00:46
1971-01-01 00:00:47
1971-01-01 00:00:48
1971-01-01 00:00:49
1971-01-01 00:00:50
1971-01-01 00:00:51
1971-01-01 00:00:52
1971-01-01 00:00:53
1971-01-01 00:00:54
1971-01-01 00:00:55
1971-01-01 00:00:56
1971-01-01 00:00:57
1971-01-01 00:00:58
1971-01-01 00:00:59
drop table t2;
create table t1 (a date not null, primary key(a)) engine='InnoDB'
partition by key (a) (
partition pa1 max_rows=20 min_rows=2,
partition pa2 max_rows=30 min_rows=3,
partition pa3 max_rows=30 min_rows=4,
partition pa4 max_rows=40 min_rows=2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` date NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = InnoDB,
PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = InnoDB,
PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = InnoDB,
PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = InnoDB)
insert into t1 values ('1975-01-01'), ('2020-12-31'), ('1980-10-14'), ('2000-06-15');
select * from t1;
a
1980-10-14
2020-12-31
1975-01-01
2000-06-15
select * from t1 where a=19801014;
a
1980-10-14
delete from t1 where a=19801014;
select * from t1;
a
2020-12-31
1975-01-01
2000-06-15
drop table t1;
create table t2 (a date not null, primary key(a)) engine='InnoDB'
partition by key (a) partitions 12;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` date NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
PARTITIONS 12
insert into t2 values ('1975-01-01'), ('2020-12-31'), ('1980-10-14'), ('2000-06-15');
select * from t2;
a
1975-01-01
1980-10-14
2020-12-31
2000-06-15
select * from t2 where a='1980-10-14';
a
1980-10-14
delete from t2 where a='1980-10-14';
select * from t2;
a
1975-01-01
2020-12-31
2000-06-15
delete from t2;
28 inserts;
select count(*) from t2;
count(*)
84
select * from t2;
a
1970-01-04
1970-01-12
1970-01-14
1970-01-24
1970-01-28
1970-02-02
1970-02-04
1970-02-10
1970-02-14
1970-02-16
1970-03-04
1970-03-06
1970-03-12
1970-01-13
1970-01-27
1970-02-03
1970-02-09
1970-02-13
1970-02-21
1970-03-05
1970-03-07
1970-03-09
1970-03-15
1970-03-23
1970-01-06
1970-01-08
1970-01-16
1970-01-18
1970-01-22
1970-02-06
1970-02-12
1970-02-20
1970-02-22
1970-02-28
1970-03-02
1970-03-08
1970-03-16
1970-03-20
1970-03-22
1970-03-24
1970-01-05
1970-01-07
1970-01-11
1970-01-15
1970-01-21
1970-02-01
1970-02-11
1970-02-15
1970-02-19
1970-03-03
1970-03-11
1970-03-13
1970-03-17
1970-03-19
1970-03-25
1970-03-27
1970-01-02
1970-01-10
1970-01-20
1970-01-26
1970-02-08
1970-02-18
1970-02-24
1970-02-26
1970-03-10
1970-03-14
1970-03-18
1970-03-26
1970-03-28
1970-01-01
1970-01-03
1970-01-09
1970-01-17
1970-01-19
1970-01-23
1970-01-25
1970-02-05
1970-02-07
1970-02-17
1970-02-23
1970-02-25
1970-02-27
1970-03-01
1970-03-21
drop table t2;
create table t3 (a date not null, primary key(a)) engine='InnoDB'
partition by range (month(a)) subpartition by key (a)
subpartitions 3 (
partition quarter1 values less than (4),
partition quarter2 values less than (7),
partition quarter3 values less than (10),
partition quarter4 values less than (13)
);
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
`a` date NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY RANGE (month(`a`))
SUBPARTITION BY KEY (`a`)
SUBPARTITIONS 3
(PARTITION `quarter1` VALUES LESS THAN (4) ENGINE = InnoDB,
PARTITION `quarter2` VALUES LESS THAN (7) ENGINE = InnoDB,
PARTITION `quarter3` VALUES LESS THAN (10) ENGINE = InnoDB,
PARTITION `quarter4` VALUES LESS THAN (13) ENGINE = InnoDB)
12 inserts;
select count(*) from t3;
count(*)
12
select * from t3;
a
1970-02-01
1970-01-01
1970-03-01
1970-04-01
1970-05-01
1970-06-01
1970-09-01
1970-07-01
1970-08-01
1970-12-01
1970-10-01
1970-11-01
drop table t3;
create table t4 (a date not null, primary key(a)) engine='InnoDB'
partition by list (month(a)) subpartition by key (a)
subpartitions 3 (
partition quarter1 values in (1,2,3),
partition quarter2 values in (4,5,6),
partition quarter3 values in (7,8,9),
partition quarter4 values in (10,11,12)
);
show create table t4;
Table Create Table
t4 CREATE TABLE `t4` (
`a` date NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY LIST (month(`a`))
SUBPARTITION BY KEY (`a`)
SUBPARTITIONS 3
(PARTITION `quarter1` VALUES IN (1,2,3) ENGINE = InnoDB,
PARTITION `quarter2` VALUES IN (4,5,6) ENGINE = InnoDB,
PARTITION `quarter3` VALUES IN (7,8,9) ENGINE = InnoDB,
PARTITION `quarter4` VALUES IN (10,11,12) ENGINE = InnoDB)
12 inserts;
select count(*) from t4;
count(*)
12
select * from t4;
a
1970-02-01
1970-01-01
1970-03-01
1970-04-01
1970-05-01
1970-06-01
1970-09-01
1970-07-01
1970-08-01
1970-12-01
1970-10-01
1970-11-01
drop table t4;
create table t1 (a time not null, primary key(a)) engine='InnoDB'
partition by key (a) (
partition pa1 max_rows=20 min_rows=2,
partition pa2 max_rows=30 min_rows=3,
partition pa3 max_rows=30 min_rows=4,
partition pa4 max_rows=40 min_rows=2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` time NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = InnoDB,
PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = InnoDB,
PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = InnoDB,
PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = InnoDB)
insert into t1 values ('21:21:21'), ('12:10:30'), ('03:03:03'), ('23:59');
select * from t1;
a
03:03:03
21:21:21
23:59:00
12:10:30
select * from t1 where a=030303;
a
03:03:03
delete from t1 where a=030303;
select * from t1;
a
21:21:21
23:59:00
12:10:30
drop table t1;
create table t2 (a time not null, primary key(a)) engine='InnoDB'
partition by key (a) partitions 12;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` time NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
PARTITIONS 12
insert into t2 values ('0:1:1'), ('10:11:12'), ('13:14:15'), ('14:15:16');
select * from t2;
a
10:11:12
13:14:15
14:15:16
00:01:01
select * from t2 where a='13:14:15';
a
13:14:15
delete from t2 where a='13:14:15';
select * from t2;
a
10:11:12
14:15:16
00:01:01
delete from t2;
59 inserts;
select count(*) from t2;
count(*)
59
select * from t2;
a
00:01:15
00:01:23
00:01:39
00:01:47
00:01:59
00:01:16
00:01:24
00:01:40
00:01:48
00:01:05
00:01:13
00:01:21
00:01:37
00:01:45
00:01:57
00:01:14
00:01:22
00:01:38
00:01:46
00:01:58
00:01:03
00:01:11
00:01:19
00:01:35
00:01:43
00:01:55
00:01:04
00:01:12
00:01:20
00:01:36
00:01:44
00:01:56
00:01:01
00:01:09
00:01:29
00:01:33
00:01:41
00:01:53
00:01:02
00:01:10
00:01:18
00:01:34
00:01:42
00:01:54
00:01:07
00:01:27
00:01:31
00:01:51
00:01:08
00:01:28
00:01:32
00:01:52
00:01:17
00:01:25
00:01:49
00:01:06
00:01:26
00:01:30
00:01:50
drop table t2;
create table t3 (a time not null, primary key(a)) engine='InnoDB'
partition by range (second(a)) subpartition by key (a)
subpartitions 3 (
partition quarter1 values less than (16),
partition quarter2 values less than (31),
partition quarter3 values less than (46),
partition quarter4 values less than (61)
);
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
`a` time NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY RANGE (second(`a`))
SUBPARTITION BY KEY (`a`)
SUBPARTITIONS 3
(PARTITION `quarter1` VALUES LESS THAN (16) ENGINE = InnoDB,
PARTITION `quarter2` VALUES LESS THAN (31) ENGINE = InnoDB,
PARTITION `quarter3` VALUES LESS THAN (46) ENGINE = InnoDB,
PARTITION `quarter4` VALUES LESS THAN (61) ENGINE = InnoDB)
59 inserts;
select count(*) from t3;
count(*)
59
select a, second(a), if(second(a)<16,1,if(second(a)<31,2,if(second(a)<45,3,4))) from t3;
a second(a) if(second(a)<16,1,if(second(a)<31,2,if(second(a)<45,3,4)))
10:00:01 1 1
10:00:06 6 1
10:00:07 7 1
10:00:14 14 1
10:00:15 15 1
10:00:02 2 1
10:00:03 3 1
10:00:08 8 1
10:00:09 9 1
10:00:04 4 1
10:00:05 5 1
10:00:10 10 1
10:00:11 11 1
10:00:12 12 1
10:00:13 13 1
10:00:20 20 2
10:00:21 21 2
10:00:26 26 2
10:00:27 27 2
10:00:16 16 2
10:00:17 17 2
10:00:22 22 2
10:00:23 23 2
10:00:28 28 2
10:00:29 29 2
10:00:18 18 2
10:00:19 19 2
10:00:24 24 2
10:00:25 25 2
10:00:30 30 2
10:00:32 32 3
10:00:33 33 3
10:00:35 35 3
10:00:40 40 3
10:00:41 41 3
10:00:34 34 3
10:00:36 36 3
10:00:37 37 3
10:00:42 42 3
10:00:43 43 3
10:00:31 31 3
10:00:38 38 3
10:00:39 39 3
10:00:44 44 3
10:00:45 45 4
10:00:46 46 4
10:00:48 48 4
10:00:49 49 4
10:00:54 54 4
10:00:55 55 4
10:00:50 50 4
10:00:51 51 4
10:00:56 56 4
10:00:57 57 4
10:00:59 59 4
10:00:47 47 4
10:00:52 52 4
10:00:53 53 4
10:00:58 58 4
drop table t3;
create table t4 (a time not null, primary key(a)) engine='InnoDB'
partition by list (second(a)) subpartition by key (a)
subpartitions 3 (
partition quarter1 values in (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15),
partition quarter2 values in (16,17,18,19,20,21,22,23,24,25,26,27,28,29,30),
partition quarter3 values in (31,32,33,34,35,36,37,38,39,40,41,42,43,44,45),
partition quarter4 values in (46,47,48,49,50,51,52,53,54,55,56,57,58,59,60)
);
show create table t4;
Table Create Table
t4 CREATE TABLE `t4` (
`a` time NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY LIST (second(`a`))
SUBPARTITION BY KEY (`a`)
SUBPARTITIONS 3
(PARTITION `quarter1` VALUES IN (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15) ENGINE = InnoDB,
PARTITION `quarter2` VALUES IN (16,17,18,19,20,21,22,23,24,25,26,27,28,29,30) ENGINE = InnoDB,
PARTITION `quarter3` VALUES IN (31,32,33,34,35,36,37,38,39,40,41,42,43,44,45) ENGINE = InnoDB,
PARTITION `quarter4` VALUES IN (46,47,48,49,50,51,52,53,54,55,56,57,58,59,60) ENGINE = InnoDB)
59 inserts;
select count(*) from t4;
count(*)
59
select * from t4;
a
10:00:01
10:00:06
10:00:07
10:00:14
10:00:15
10:00:02
10:00:03
10:00:08
10:00:09
10:00:04
10:00:05
10:00:10
10:00:11
10:00:12
10:00:13
10:00:20
10:00:21
10:00:26
10:00:27
10:00:16
10:00:17
10:00:22
10:00:23
10:00:28
10:00:29
10:00:18
10:00:19
10:00:24
10:00:25
10:00:30
10:00:32
10:00:33
10:00:35
10:00:40
10:00:41
10:00:34
10:00:36
10:00:37
10:00:42
10:00:43
10:00:31
10:00:38
10:00:39
10:00:44
10:00:45
10:00:46
10:00:48
10:00:49
10:00:54
10:00:55
10:00:50
10:00:51
10:00:56
10:00:57
10:00:59
10:00:47
10:00:52
10:00:53
10:00:58
drop table t4;
create table t1 (a datetime not null, primary key(a)) engine='InnoDB'
partition by key (a) (
partition pa1 max_rows=20 min_rows=2,
partition pa2 max_rows=30 min_rows=3,
partition pa3 max_rows=30 min_rows=4,
partition pa4 max_rows=40 min_rows=2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` datetime NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = InnoDB,
PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = InnoDB,
PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = InnoDB,
PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = InnoDB)
insert into t1 values ('1975-01-01 21:21:21'), ('2020-12-31 12:10:30'), ('1980-10-14 03:03'), ('2000-06-15 23:59');
select * from t1;
a
1975-01-01 21:21:21
2000-06-15 23:59:00
2020-12-31 12:10:30
1980-10-14 03:03:00
select * from t1 where a=19801014030300;
a
1980-10-14 03:03:00
delete from t1 where a=19801014030300;
select * from t1;
a
1975-01-01 21:21:21
2000-06-15 23:59:00
2020-12-31 12:10:30
drop table t1;
create table t2 (a datetime not null, primary key(a)) engine='InnoDB'
partition by key (a) partitions 12;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` datetime NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
PARTITIONS 12
insert into t2 values ('1975-01-01 0:1:1'), ('2020-12-31 10:11:12'), ('1980-10-14 13:14:15'), ('2000-06-15 14:15:16');
select * from t2;
a
2020-12-31 10:11:12
2000-06-15 14:15:16
1980-10-14 13:14:15
1975-01-01 00:01:01
select * from t2 where a='1980-10-14 13:14:15';
a
1980-10-14 13:14:15
delete from t2 where a='1980-10-14 13:14:15';
select * from t2;
a
2020-12-31 10:11:12
2000-06-15 14:15:16
1975-01-01 00:01:01
delete from t2;
59 inserts;
select count(*) from t2;
count(*)
59
select * from t2;
a
1970-01-01 00:00:09
1970-01-01 00:00:13
1970-01-01 00:00:19
1970-01-01 00:00:23
1970-01-01 00:00:33
1970-01-01 00:00:37
1970-01-01 00:00:51
1970-01-01 00:00:59
1970-01-01 00:00:04
1970-01-01 00:00:10
1970-01-01 00:00:14
1970-01-01 00:00:24
1970-01-01 00:00:28
1970-01-01 00:00:34
1970-01-01 00:00:38
1970-01-01 00:00:48
1970-01-01 00:00:52
1970-01-01 00:00:56
1970-01-01 00:00:03
1970-01-01 00:00:07
1970-01-01 00:00:17
1970-01-01 00:00:21
1970-01-01 00:00:27
1970-01-01 00:00:31
1970-01-01 00:00:35
1970-01-01 00:00:39
1970-01-01 00:00:41
1970-01-01 00:00:45
1970-01-01 00:00:08
1970-01-01 00:00:12
1970-01-01 00:00:18
1970-01-01 00:00:22
1970-01-01 00:00:32
1970-01-01 00:00:36
1970-01-01 00:00:42
1970-01-01 00:00:46
1970-01-01 00:00:01
1970-01-01 00:00:05
1970-01-01 00:00:11
1970-01-01 00:00:15
1970-01-01 00:00:25
1970-01-01 00:00:29
1970-01-01 00:00:43
1970-01-01 00:00:47
1970-01-01 00:00:49
1970-01-01 00:00:53
1970-01-01 00:00:55
1970-01-01 00:00:57
1970-01-01 00:00:02
1970-01-01 00:00:06
1970-01-01 00:00:16
1970-01-01 00:00:20
1970-01-01 00:00:26
1970-01-01 00:00:30
1970-01-01 00:00:40
1970-01-01 00:00:44
1970-01-01 00:00:50
1970-01-01 00:00:54
1970-01-01 00:00:58
drop table t2;
create table t3 (a datetime not null, primary key(a)) engine='InnoDB'
partition by range (month(a)) subpartition by key (a)
subpartitions 3 (
partition quarter1 values less than (4),
partition quarter2 values less than (7),
partition quarter3 values less than (10),
partition quarter4 values less than (13)
);
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
`a` datetime NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY RANGE (month(`a`))
SUBPARTITION BY KEY (`a`)
SUBPARTITIONS 3
(PARTITION `quarter1` VALUES LESS THAN (4) ENGINE = InnoDB,
PARTITION `quarter2` VALUES LESS THAN (7) ENGINE = InnoDB,
PARTITION `quarter3` VALUES LESS THAN (10) ENGINE = InnoDB,
PARTITION `quarter4` VALUES LESS THAN (13) ENGINE = InnoDB)
12 inserts;
select count(*) from t3;
count(*)
12
select * from t3;
a
1970-02-01 00:00:00
1970-01-01 00:00:00
1970-03-01 00:00:00
1970-04-01 00:00:00
1970-05-01 00:00:00
1970-06-01 00:00:00
1970-08-01 00:00:00
1970-09-01 00:00:00
1970-07-01 00:00:00
1970-10-01 00:00:00
1970-11-01 00:00:00
1970-12-01 00:00:00
drop table t3;
create table t4 (a datetime not null, primary key(a)) engine='InnoDB'
partition by list (month(a)) subpartition by key (a)
subpartitions 3 (
partition quarter1 values in (1,2,3),
partition quarter2 values in (4,5,6),
partition quarter3 values in (7,8,9),
partition quarter4 values in (10,11,12)
);
show create table t4;
Table Create Table
t4 CREATE TABLE `t4` (
`a` datetime NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY LIST (month(`a`))
SUBPARTITION BY KEY (`a`)
SUBPARTITIONS 3
(PARTITION `quarter1` VALUES IN (1,2,3) ENGINE = InnoDB,
PARTITION `quarter2` VALUES IN (4,5,6) ENGINE = InnoDB,
PARTITION `quarter3` VALUES IN (7,8,9) ENGINE = InnoDB,
PARTITION `quarter4` VALUES IN (10,11,12) ENGINE = InnoDB)
12 inserts;
select count(*) from t4;
count(*)
12
select * from t4;
a
1970-02-01 00:00:00
1970-01-01 00:00:00
1970-03-01 00:00:00
1970-04-01 00:00:00
1970-05-01 00:00:00
1970-06-01 00:00:00
1970-08-01 00:00:00
1970-09-01 00:00:00
1970-07-01 00:00:00
1970-10-01 00:00:00
1970-11-01 00:00:00
1970-12-01 00:00:00
drop table t4;
create table t1 (a year not null, primary key(a)) engine='InnoDB'
partition by key (a) (
partition pa1 max_rows=20 min_rows=2,
partition pa2 max_rows=30 min_rows=3,
partition pa3 max_rows=30 min_rows=4,
partition pa4 max_rows=40 min_rows=2);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` year(4) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
(PARTITION `pa1` MAX_ROWS = 20 MIN_ROWS = 2 ENGINE = InnoDB,
PARTITION `pa2` MAX_ROWS = 30 MIN_ROWS = 3 ENGINE = InnoDB,
PARTITION `pa3` MAX_ROWS = 30 MIN_ROWS = 4 ENGINE = InnoDB,
PARTITION `pa4` MAX_ROWS = 40 MIN_ROWS = 2 ENGINE = InnoDB)
insert into t1 values ('1975'), (2020), ('1980'), ('2000');
select * from t1;
a
1980
2000
2020
1975
select * from t1 where a=1980;
a
1980
delete from t1 where a=1980;
select * from t1;
a
2000
2020
1975
drop table t1;
create table t2 (a year not null, primary key(a)) engine='InnoDB'
partition by key (a) partitions 12;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` year(4) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
PARTITION BY KEY (`a`)
PARTITIONS 12
insert into t2 values ('1975'), ('2020'), ('1980'), ('2000');
select * from t2;
a
2020
1975
1980
2000
select * from t2 where a='1980';
a
1980
delete from t2 where a='1980';
select * from t2;
a
2020
1975
2000
delete from t2;
255 inserts;
Warnings:
Warning 1264 Out of range value for column 'a' at row 1
select count(*) from t2;
count(*)
255
select * from t2;
a
1909
1921
1933
1945
1957
1969
1981
1993
2001
2013
2029
2041
2053
2065
2077
2089
2100
2101
2102
2103
2114
2132
2133
2134
2135
2146
1904
1916
1928
1932
1940
1952
1964
1976
1988
2008
2020
2024
2036
2048
2060
2072
2084
1907
1919
1931
1943
1955
1967
1979
1991
1999
2011
2027
2039
2051
2063
2075
2087
2097
2099
2110
2111
2112
2113
2123
2129
2131
2142
2143
2144
2145
2147
1902
1914
1926
1938
1950
1962
1974
1986
2006
2018
2034
2046
2058
2070
2082
1905
1917
1929
1941
1953
1965
1977
1989
1997
2009
2021
2025
2037
2049
2061
2073
2085
2092
2093
2094
2095
2120
2121
2124
2125
2126
2127
2152
2153
0000
1912
1924
1936
1948
1960
1972
1984
1996
2004
2016
2032
2044
2056
2068
2080
2116
2148
1903
1915
1927
1939
1951
1963
1975
1987
2007
2019
2023
2035
2047
2059
2071
2083
2155
1910
1922
1934
1946
1958
1970
1982
1994
2002
2014
2030
2042
2054
2066
2078
2090
1913
1925
1937
1949
1961
1973
1985
2005
2017
2033
2045
2057
2069
2081
2104
2105
2106
2107
2117
2118
2119
2136
2137
2138
2139
2149
2150
2151
1908
1920
1944
1956
1968
1980
1992
2000
2012
2028
2040
2052
2064
2076
2088
2096
2098
2108
2128
2130
2140
1911
1923
1935
1947
1959
1971
1983
1995
2003
2015
2031
2043
2055
2067
2079
2091
2115
1906
1918
1930
1942
1954
1966
1978
1990
1998
2010
2022
2026
2038
2050
2062
2074
2086
2109
2122
2141
2154
drop table t2;
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