create or replace table t(id int, s date, e date,
period for p(s,e),
primary key(id, p without overlaps)
) partition by key (id);
show create table t;
Table	Create Table
t	CREATE TABLE `t` (
  `id` int(11) NOT NULL,
  `s` date NOT NULL,
  `e` date NOT NULL,
  PERIOD FOR `p` (`s`, `e`),
  PRIMARY KEY (`id`,`p` WITHOUT OVERLAPS)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
 PARTITION BY KEY (`id`)
select * from information_schema.key_period_usage;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	PERIOD_NAME
def	test	PRIMARY	def	test	t	p
create or replace table t_multi(id int, id2 int, s date, e date,
period for very_interesting_period(s,e),
primary key(id, very_interesting_period without overlaps),
unique(id2, very_interesting_period without overlaps)
);
select * from information_schema.key_period_usage;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	PERIOD_NAME
def	test	PRIMARY	def	test	t	p
def	test	PRIMARY	def	test	t_multi	very_interesting_period
def	test	id2	def	test	t_multi	very_interesting_period
drop table t_multi;
insert into t values (1, '2003-01-01', '2003-03-01'),
(1, '2003-05-01', '2003-07-01');
insert into t values (1, '2003-02-01', '2003-04-01');
ERROR 23000: Duplicate entry '1-2003-04-01-2003-02-01' for key 'PRIMARY'
insert into t values (1, '2003-04-01', '2003-06-01');
ERROR 23000: Duplicate entry '1-2003-06-01-2003-04-01' for key 'PRIMARY'
insert into t values (1, '2003-05-15', '2003-06-15');
ERROR 23000: Duplicate entry '1-2003-06-15-2003-05-15' for key 'PRIMARY'
insert into t values (1, '2003-04-01', '2003-08-01');
ERROR 23000: Duplicate entry '1-2003-08-01-2003-04-01' for key 'PRIMARY'
insert into t values (1, '2003-03-01', '2003-05-01');
# expand/shrink period
update t set s= '2002-12-01' where s = '2003-01-01';
update t set s= '2003-01-01' where s = '2002-12-01';
update t set e= '2003-08-01' where s = '2003-05-01';
update t set e= '2003-07-01' where s = '2003-05-01';
# move left/right
update t set s= '2002-12-15', e= '2003-01-15' where s = '2003-01-01';
update t set s= '2003-01-01', e= '2003-02-01' where s = '2002-12-15';
# diminish/enlarge
update t set s= '2003-01-10', e= '2003-01-20' where s = '2003-01-01';
update t set s= '2003-01-01', e= '2003-02-01' where s = '2003-01-10';
select * from t;
id	s	e
1	2003-01-01	2003-02-01
1	2003-03-01	2003-05-01
1	2003-05-01	2003-07-01
# intersect left/right, strict inclusion/containment
update t set e= '2003-04-01' where s = '2003-01-01';
ERROR 23000: Duplicate entry '1-2003-04-01-2003-01-01' for key 'PRIMARY'
update t set s= '2003-04-01' where s = '2003-05-01';
ERROR 23000: Duplicate entry '1-2003-07-01-2003-04-01' for key 'PRIMARY'
update t set s= '2003-03-10', e= '2003-03-20' where s = '2003-01-01';
ERROR 23000: Duplicate entry '1-2003-03-20-2003-03-10' for key 'PRIMARY'
update t set s= '2003-04-01', e= '2003-08-01' where s = '2003-03-01';
ERROR 23000: Duplicate entry '1-2003-08-01-2003-04-01' for key 'PRIMARY'
# inclusion/containment with partial match
update t set s= '2003-03-01', e= '2003-04-01' where s = '2003-01-01';
ERROR 23000: Duplicate entry '1-2003-04-01-2003-03-01' for key 'PRIMARY'
update t set s= '2003-04-01', e= '2003-05-01' where s = '2003-01-01';
ERROR 23000: Duplicate entry '1-2003-05-01-2003-04-01' for key 'PRIMARY'
update t set s= '2003-03-01' where s = '2003-05-01';
ERROR 23000: Duplicate entry '1-2003-07-01-2003-03-01' for key 'PRIMARY'
update t set e= '2003-05-01' where s = '2003-01-01';
ERROR 23000: Duplicate entry '1-2003-05-01-2003-01-01' for key 'PRIMARY'
select * from t where year(s) = 2003;
id	s	e
1	2003-01-01	2003-02-01
1	2003-03-01	2003-05-01
1	2003-05-01	2003-07-01
# UPDATE ... FOR PORTION test
insert t values (2, '2003-04-15', '2003-05-01');
update t for portion of p from '2003-01-01' to '2003-01-15'
         set id= 2;
select * from t;
id	s	e
1	2003-01-15	2003-02-01
1	2003-03-01	2003-05-01
1	2003-05-01	2003-07-01
2	2003-01-01	2003-01-15
2	2003-04-15	2003-05-01
update t for portion of p from '2003-01-15' to '2003-02-01'
         set id= 2;
select * from t;
id	s	e
1	2003-03-01	2003-05-01
1	2003-05-01	2003-07-01
2	2003-01-01	2003-01-15
2	2003-01-15	2003-02-01
2	2003-04-15	2003-05-01
# Next, test UPDATE ... FOR PORTION resulting with an error
# Since MyISAM/Aria engines lack atomicity, the results would differ with
# innodb. So a table is going to be copied to one with explicit engine.
create table t_myisam (id int, s date, e date,
period for p(s,e),
primary key(id, p without overlaps))
engine=myisam
select * from t;
update t_myisam for portion of p from '2003-04-01' to '2003-06-01'
         set id= 2 order by s desc;
ERROR 23000: Duplicate entry '2-2003-05-01-2003-04-01' for key 'PRIMARY'
select * from t_myisam;
id	s	e
1	2003-03-01	2003-05-01
1	2003-06-01	2003-07-01
2	2003-01-01	2003-01-15
2	2003-01-15	2003-02-01
2	2003-04-15	2003-05-01
2	2003-05-01	2003-06-01
create table t_innodb (id int, s date, e date,
period for p(s,e),
primary key(id, p without overlaps))
engine=innodb
select * from t;
update t_innodb for portion of p from '2003-04-01' to '2003-06-01'
         set id= 2 order by s desc;
ERROR 23000: Duplicate entry '2-2003-05-01-2003-04-01' for key 'PRIMARY'
select * from t_innodb;
id	s	e
1	2003-03-01	2003-05-01
1	2003-05-01	2003-07-01
2	2003-01-01	2003-01-15
2	2003-01-15	2003-02-01
2	2003-04-15	2003-05-01
drop table t_myisam, t_innodb;
create or replace table t(id int, s date, e date,
period for p(s,e),
primary key(id, q without overlaps));
ERROR HY000: Period `q` is not found in table
create or replace table t(id int, s date, e date,
primary key(id, p without overlaps));
ERROR HY000: Period `p` is not found in table
create or replace table t(id int, s date, e date,
period for p(s,e),
primary key(id, s, p without overlaps));
ERROR HY000: Key `PRIMARY` cannot explicitly include column `s`
create or replace table t(id int, s date, e date,
period for p(s,e),
primary key(id));
insert into t values (1, '2003-03-01', '2003-05-01');
insert into t values (1, '2003-04-01', '2003-05-01');
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
create or replace table t(id int, u int, s date, e date,
period for p(s,e),
primary key(id, p without overlaps),
unique(u));
show create table t;
Table	Create Table
t	CREATE TABLE `t` (
  `id` int(11) NOT NULL,
  `u` int(11) DEFAULT NULL,
  `s` date NOT NULL,
  `e` date NOT NULL,
  PERIOD FOR `p` (`s`, `e`),
  PRIMARY KEY (`id`,`p` WITHOUT OVERLAPS),
  UNIQUE KEY `u` (`u`)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
insert into t values (1, 1, '2003-03-01', '2003-05-01');
insert into t values (1, 2, '2003-05-01', '2003-07-01');
insert into t values (1, 3, '2003-04-01', '2003-05-01');
ERROR 23000: Duplicate entry '1-2003-05-01-2003-04-01' for key 'PRIMARY'
create or replace table t(id int, u int, s date, e date,
period for p(s,e),
primary key(id, p without overlaps),
unique(u, p without overlaps));
show create table t;
Table	Create Table
t	CREATE TABLE `t` (
  `id` int(11) NOT NULL,
  `u` int(11) DEFAULT NULL,
  `s` date NOT NULL,
  `e` date NOT NULL,
  PERIOD FOR `p` (`s`, `e`),
  PRIMARY KEY (`id`,`p` WITHOUT OVERLAPS),
  UNIQUE KEY `u` (`u`,`p` WITHOUT OVERLAPS)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
insert into t values (2, NULL, '2003-03-01', '2003-05-01');
insert into t values (2, NULL, '2003-03-01', '2003-05-01');
ERROR 23000: Duplicate entry '2-2003-05-01-2003-03-01' for key 'PRIMARY'
insert into t values (3, NULL, '2003-03-01', '2003-05-01');
insert into t values (1, 1, '2003-03-01', '2003-05-01');
insert into t values (1, 2, '2003-05-01', '2003-07-01');
insert into t values (4, NULL, '2003-03-01', '2003-05-01');
create sequence seq start=5 engine=myisam;
update t set id= nextval(seq), u= nextval(seq), s='2003-05-01', e='2003-07-01'
         where u is NULL;
select * from t;
id	u	s	e
1	1	2003-03-01	2003-05-01
1	2	2003-05-01	2003-07-01
5	6	2003-05-01	2003-07-01
7	8	2003-05-01	2003-07-01
9	10	2003-05-01	2003-07-01
drop sequence seq;
create or replace table t(id int, s date, e date,
period for p(s,e));
insert into t values (1, '2003-01-01', '2003-03-01'),
(1, '2003-05-01', '2003-07-01'),
(1, '2003-02-01', '2003-04-01');
alter table t add primary key(id, p without overlaps);
ERROR 23000: Duplicate entry '1-2003-04-01-2003-02-01' for key 'PRIMARY'
# Historical rows are not checked against constraints
set @@system_versioning_alter_history= keep;
alter table t add system versioning;
delete from t;
alter table t add primary key(id, p without overlaps);
insert into t values (1, '2003-01-01', '2003-03-01'),
(1, '2003-03-01', '2003-05-01');
# `without overlaps` is not lost on alter table
alter table t add y int;
show create table t;
Table	Create Table
t	CREATE TABLE `t` (
  `id` int(11) NOT NULL,
  `s` date NOT NULL,
  `e` date NOT NULL,
  `y` int(11) DEFAULT NULL,
  PERIOD FOR `p` (`s`, `e`),
  PRIMARY KEY (`id`,`p` WITHOUT OVERLAPS)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci WITH SYSTEM VERSIONING
alter table t drop y;
create or replace table t1 like t;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `s` date NOT NULL,
  `e` date NOT NULL,
  PERIOD FOR `p` (`s`, `e`),
  PRIMARY KEY (`id`,`p` WITHOUT OVERLAPS)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci WITH SYSTEM VERSIONING
create or replace table t1 (x int, s date, e date,
period for p(s,e),
primary key(x, p without overlaps));
alter table t1 partition by key (x);
create or replace table t1 (x int, s date, e date, period for p (s, e))
partition by hash (x);
alter table t1 add primary key (x, p without overlaps);
create or replace table t2 (x int, s date, e date,
period for p (s, e),
key(x, p without overlaps));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'without overlaps))' at line 3
create or replace table t2 (x int, s date, e date,
period for p (s, e),
unique(x, p without overlaps, x, p without overlaps));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ' x, p without overlaps))' at line 3
create or replace table t1 (x varchar(100), s date, e date,
period for p(s,e),
primary key(x, p without overlaps));
create or replace table t1 (x varchar(100) compressed, s date, e date,
period for p(s,e),
primary key(x, p without overlaps));
ERROR HY000: Compressed column 'x' can't be used in key specification
create or replace table t (x int, s date, e date, period for apptime(s,e),
unique(x, apptime without overlaps) using hash);
ERROR HY000: Key `x` cannot have WITHOUT OVERLAPS
create or replace table t (x int, s date, e date, period for apptime(s,e),
b blob, unique(x, b, apptime without overlaps));
ERROR HY000: Key `x` cannot have WITHOUT OVERLAPS
create or replace table t (x int, s date, e date, b blob unique,
period for apptime(s,e),
unique(x, apptime without overlaps));
insert into t values (1, '2020-03-01', '2020-03-05', 'test');
insert into t values (1, '2020-03-05', '2020-03-10', 'test');
ERROR 23000: Duplicate entry 'test' for key 'b'
insert into t values (1, '2020-03-05', '2020-03-10', 'test2');
insert into t values (1, '2020-03-03', '2020-03-10', 'test3');
ERROR 23000: Duplicate entry '1-2020-03-10-2020-03-03' for key 'x'
create or replace table t (x int, s date, e date, period for apptime(s,e),
unique(x, apptime without overlaps));
replace into t values (1, '2020-03-03', '2020-03-10');
ERROR 42000: This version of MariaDB doesn't yet support 'WITHOUT OVERLAPS'
insert into t values (1, '2020-03-03', '2020-03-10')
on duplicate key update x = 2;
ERROR 42000: This version of MariaDB doesn't yet support 'WITHOUT OVERLAPS'
select * from t;
x	s	e
select * into outfile 'tmp_t.txt' from t;
load data infile 'tmp_t.txt' into table t;
load data infile 'tmp_t.txt' replace into table t;
ERROR 42000: This version of MariaDB doesn't yet support 'WITHOUT OVERLAPS'
insert into t values (1, '2020-03-01', '2020-03-05');
select * into outfile 'tmp_t.txt' from t;
load data infile 'tmp_t.txt' into table t;
ERROR 23000: Duplicate entry '1-2020-03-05-2020-03-01' for key 'x'
load data infile 'tmp_t.txt' ignore into table t;
Warnings:
Warning	1062	Duplicate entry '1-2020-03-05-2020-03-01' for key 'x'
load data infile 'tmp_t.txt' replace into table t;
ERROR 42000: This version of MariaDB doesn't yet support 'WITHOUT OVERLAPS'
# MDEV-22599 WITHOUT OVERLAPS does not work with prefix indexes
create or replace table t1 (a varchar(6), s timestamp, e timestamp,
period for p(s,e),
unique(a(3), p without overlaps));
insert into t1 values ('foo', '2012-01-01', '2015-12-31');
insert into t1 values ('foobar', '2013-01-01', '2014-01-01');
ERROR 23000: Duplicate entry 'foo-2014-01-01 00:00:00-2013-01-01 00:00:00' for key 'a'
insert into t1 values ('bar', '2012-01-01', '2015-12-31'),
('baz', '2013-01-01', '2014-01-01');
select * from t1;
a	s	e
foo	2012-01-01 00:00:00	2015-12-31 00:00:00
bar	2012-01-01 00:00:00	2015-12-31 00:00:00
baz	2013-01-01 00:00:00	2014-01-01 00:00:00
# MDEV-22753 Server crashes in handler::ha_check_overlaps or error 190
# "Incompatible key or row definition" upon INSERT into versioned
# partitioned table with WITHOUT OVERLAPS
create or replace table t1 (f int, s date, e date, period for p(s,e),
unique(f, p without overlaps)
) engine=innodb with system versioning
partition by system_time limit 1000
(partition p1 history, partition pn current);
alter table t1 add partition (partition p2 history);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `f` int(11) DEFAULT NULL,
  `s` date NOT NULL,
  `e` date NOT NULL,
  PERIOD FOR `p` (`s`, `e`),
  UNIQUE KEY `f` (`f`,`p` WITHOUT OVERLAPS)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci WITH SYSTEM VERSIONING
 PARTITION BY SYSTEM_TIME LIMIT 1000
(PARTITION `p1` HISTORY ENGINE = InnoDB,
 PARTITION `p2` HISTORY ENGINE = InnoDB,
 PARTITION `pn` CURRENT ENGINE = InnoDB)
insert into t1 values (1,'2013-01-12','2015-11-04'),
(2,'2016-03-15','2024-11-09');
# MDEV-22714 Assertion `index->table->is_instant()' failed upon
# multi-update on table with WITHOUT OVERLAPS
create or replace table t (a int);
insert into t values (0),(null),(0);
create or replace table t1 (f int, s date, e date, period for p(s,e),
unique(f, p without overlaps));
insert into t1 values (0,'2026-02-12','2036-09-16'),
(null,'2025-03-09','2032-12-05');
update ignore t join t1 set f = a;
# MDEV-22639  Assertion `inited != NONE' failed in
# handler::ha_check_overlaps upon multi-table update
create or replace table t (f int, s date, e date, period for p(s,e),
unique(f, p without overlaps)) engine=myisam;
insert into t values (1,'1988-08-25','2024-03-06');
create or replace table t1 (a int) engine=myisam;
insert into t1 values (1),(2);
update t join t1 set s = '2020-01-01';
# MDEV-22608 ASAN use-after-poison in TABLE::check_period_overlaps
create or replace table t1 (s date, e date, b bit, period for p(s,e),
unique(b, p without overlaps)) engine=myisam;
insert into t1 values ('2024-12-21','2034-06-29',0),
('2024-12-21','2034-06-29',1);
update t1 set b = 1;
ERROR 23000: Duplicate entry '\x01-2034-06-29-2024-12-21' for key 'b'
# MDEV-22677 Server crashes in ha_partition::open upon update on
# partitioned HEAP table with WITHOUT OVERLAPS
create or replace table t (id int, s date, e date, period for p(s,e),
primary key(id, p without overlaps)
) engine=heap partition by hash(id);
update t set id = 1;
drop table t, t1;
#
# MDEV-30415 PERIOD false positive overlap wtih utf8mb4_unicode_nopad_ci
#
CREATE TABLE t1 (
datetime_column_name_1 DATETIME(6) NOT NULL,
datetime_column_name_2 DATETIME(6) NOT NULL,
text_column_name TEXT COLLATE utf8mb4_unicode_nopad_ci NOT NULL,
PERIOD FOR period_name (datetime_column_name_1, datetime_column_name_2),
UNIQUE KEY index_name (text_column_name(191),period_name WITHOUT OVERLAPS)
) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_nopad_ci;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, text_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc'),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc ');
TRUNCATE TABLE t1;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, text_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc '),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc');
DROP TABLE t1;
CREATE TABLE `t1` (
datetime_column_name_1 DATETIME(6) NOT NULL,
datetime_column_name_2 DATETIME(6) NOT NULL,
text_column_name TEXT COLLATE utf8mb4_unicode_nopad_ci NOT NULL,
PERIOD FOR period_name (datetime_column_name_1, datetime_column_name_2),
UNIQUE KEY index_name (text_column_name(191),period_name WITHOUT OVERLAPS)
) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_nopad_ci;
INSERT INTO t1 VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'def '),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'def');
TRUNCATE TABLE t1;
INSERT INTO t1 VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'def'),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'def '),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'def  ');
SELECT *, LENGTH(text_column_name) FROM t1;
datetime_column_name_1	datetime_column_name_2	text_column_name	LENGTH(text_column_name)
2000-01-01 00:00:00.000000	2001-01-01 00:00:00.000000	def	3
2000-01-01 00:00:00.000000	2001-01-01 00:00:00.000000	def 	4
2000-01-01 00:00:00.000000	2001-01-01 00:00:00.000000	def  	5
DROP TABLE t1;
CREATE TABLE t1 (
datetime_column_name_1 DATETIME(6) NOT NULL,
datetime_column_name_2 DATETIME(6) NOT NULL,
text_column_name TEXT COLLATE utf8mb4_unicode_nopad_ci NOT NULL,
PERIOD FOR period_name (datetime_column_name_1, datetime_column_name_2),
UNIQUE KEY index_name (text_column_name(3),period_name WITHOUT OVERLAPS)
) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_nopad_ci;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, text_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc'),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc ');
ERROR 23000: Duplicate entry 'abc-2001-01-01 00:00:00.000000-2000-01-01 00:00:00.000000' for key 'index_name'
TRUNCATE TABLE t1;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, text_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc '),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc');
ERROR 23000: Duplicate entry 'abc-2001-01-01 00:00:00.000000-2000-01-01 00:00:00.000000' for key 'index_name'
DROP TABLE t1;
CREATE TABLE t1 (
datetime_column_name_1 DATETIME(6) NOT NULL,
datetime_column_name_2 DATETIME(6) NOT NULL,
char_column_name CHAR(255) COLLATE utf8mb4_unicode_nopad_ci NOT NULL,
PERIOD FOR period_name (datetime_column_name_1, datetime_column_name_2),
UNIQUE KEY index_name (char_column_name(191),period_name WITHOUT OVERLAPS)
) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_nopad_ci;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, char_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc'),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc ');
ERROR 23000: Duplicate entry 'abc-2001-01-01 00:00:00.000000-2000-01-01 00:00:00.000000' for key 'index_name'
TRUNCATE TABLE t1;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, char_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc '),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc');
ERROR 23000: Duplicate entry 'abc-2001-01-01 00:00:00.000000-2000-01-01 00:00:00.000000' for key 'index_name'
DROP TABLE t1;
CREATE TABLE t1 (
datetime_column_name_1 DATETIME(6) NOT NULL,
datetime_column_name_2 DATETIME(6) NOT NULL,
char_column_name CHAR(255) COLLATE utf8mb4_unicode_nopad_ci NOT NULL,
PERIOD FOR period_name (datetime_column_name_1, datetime_column_name_2),
UNIQUE KEY index_name (char_column_name(3),period_name WITHOUT OVERLAPS)
) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_nopad_ci;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, char_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc'),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc ');
ERROR 23000: Duplicate entry 'abc-2001-01-01 00:00:00.000000-2000-01-01 00:00:00.000000' for key 'index_name'
TRUNCATE TABLE t1;
INSERT INTO t1 (datetime_column_name_1, datetime_column_name_2, char_column_name)
VALUES
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc '),
('2000-01-01 00:00:00.000000', '2001-01-01 00:00:00.000000', 'abc');
ERROR 23000: Duplicate entry 'abc-2001-01-01 00:00:00.000000-2000-01-01 00:00:00.000000' for key 'index_name'
DROP TABLE t1;
# MDEV-25370 Update for portion changes autoincrement key in period table
create or replace table cars(id int auto_increment,
price int, s date, e date,
period for p(s,e),
primary key(id, p without overlaps));
insert into cars(price, s, e) values (1000, '2018-01-01', '2020-01-01');
select * from cars;
id	price	s	e
1	1000	2018-01-01	2020-01-01
update cars for portion of p from '2019-01-01' to '2019-12-01' set price= 1100;
select * from cars;
id	price	s	e
1	1000	2018-01-01	2019-01-01
1	1000	2019-12-01	2020-01-01
1	1100	2019-01-01	2019-12-01
delete from cars for portion of p from '2019-12-10' to '2019-12-20';
select * from cars;
id	price	s	e
1	1000	2018-01-01	2019-01-01
1	1000	2019-12-01	2019-12-10
1	1000	2019-12-20	2020-01-01
1	1100	2019-01-01	2019-12-01
# AUTO_INCREMENT field is separate from WITHOUT OVERLAPS
create or replace table cars(id int primary key auto_increment, 
car_id int,
price int, s date, e date,
period for p(s,e),
unique(car_id, p without overlaps));
insert cars(car_id, price, s, e) values (1, 1000, '2018-01-01', '2020-01-01');
select * from cars;
id	car_id	price	s	e
1	1	1000	2018-01-01	2020-01-01
update cars for portion of p from '2019-01-01' to '2019-12-01' set price= 1100;
select * from cars;
id	car_id	price	s	e
1	1	1100	2019-01-01	2019-12-01
2	1	1000	2018-01-01	2019-01-01
3	1	1000	2019-12-01	2020-01-01
delete from cars for portion of p from '2019-12-10' to '2019-12-20';
select * from cars;
id	car_id	price	s	e
1	1	1100	2019-01-01	2019-12-01
2	1	1000	2018-01-01	2019-01-01
4	1	1000	2019-12-01	2019-12-10
5	1	1000	2019-12-20	2020-01-01
# AUTO_INCREMENT field is both standalone and in WITHOUT OVERLAPS
create or replace table cars(id int primary key auto_increment,
price int, s date, e date,
period for p(s,e),
unique(id, p without overlaps));
insert cars(price, s, e) values (1000, '2018-01-01', '2020-01-01');
insert cars(price, s, e) values (1000, '2021-01-01', '2022-01-01');
update cars for portion of p from '2019-01-01' to '2019-12-01' set price= 1100;
# autoincrement index is: id int primary key
# id increments each time.
select * from cars;
id	price	s	e
1	1100	2019-01-01	2019-12-01
2	1000	2021-01-01	2022-01-01
3	1000	2018-01-01	2019-01-01
4	1000	2019-12-01	2020-01-01
truncate cars;
insert cars(price, s, e) values (1000, '2018-01-01', '2020-01-01');
delete from cars for portion of p from '2019-12-10' to '2019-12-20';
select * from cars;
id	price	s	e
2	1000	2018-01-01	2019-12-10
3	1000	2019-12-20	2020-01-01
create or replace table cars(id int unique auto_increment,
price int, s date, e date,
period for p(s,e),
primary key (id, p without overlaps));
insert cars(price, s, e) values (1000, '2018-01-01', '2020-01-01');
# autoincrement index is: primary key (id, p without overlaps)
# id is not incremented, hence duplication error
update cars for portion of p from '2019-01-01' to '2019-12-01' set price= 1100;
ERROR 23000: Duplicate entry '1' for key 'id'
truncate cars;
insert cars(price, s, e) values (1000, '2018-01-01', '2020-01-01');
delete from cars for portion of p from '2019-12-10' to '2019-12-20';
ERROR 23000: Duplicate entry '1' for key 'id'
drop table cars;