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create or replace table t1(
x int unsigned,
y int unsigned,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time (sys_start, sys_end))
with system versioning;
insert into t1(x, y) values(3, 4);
insert into t1(x, y) values(2, 3);
insert into t1 values(40, 33);
select x, y, sys_end < MAXVAL from t1;
x y sys_end < MAXVAL
3 4 0
2 3 0
40 33 0
create or replace table t1(
id int unsigned auto_increment primary key,
x int unsigned,
y int unsigned,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time (sys_start, sys_end))
with system versioning;
insert into t1(x, y) values(33, 44);
insert into t1(id, x, y) values(20, 33, 44);
insert into t1 values(40, 33, 44);
select id, x, y, sys_end < MAXVAL from t1;
id x y sys_end < MAXVAL
1 33 44 0
20 33 44 0
40 33 44 0
create or replace table t1(
x int unsigned,
y int unsigned,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time (sys_start, sys_end))
with system versioning;
create view vt1_1 as select x, y from t1;
insert into t1(x, y) values(8001, 9001);
insert into vt1_1(x, y) values(1001, 2001);
insert into vt1_1 values(1002, 2002);
select x, y, sys_end < MAXVAL from t1;
x y sys_end < MAXVAL
8001 9001 0
1001 2001 0
1002 2002 0
select x, y from vt1_1;
x y
8001 9001
1001 2001
1002 2002
drop view vt1_1;
create or replace table t1( id bigint primary key, a int, b int) with system versioning;
insert into t1 values(1, 1, 1);
select row_start, row_end from t1 into @sys_start, @sys_end;
Warnings:
Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
select id, a, b from t1;
id a b
1 1 1
insert into t1 values(2, 2, 2);
select id, a, b, row_start > @sys_start as C, row_end = @sys_end as D from t1 where id = 2;
id a b C D
2 2 2 1 1
drop table t1;
create or replace table t1(
x int unsigned,
y int unsigned,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time (sys_start, sys_end))
with system versioning;
create or replace table t2 like t1;
insert into t1(x, y) values (1, 1000), (2, 2000), (3, 3000), (4, 4000), (5, 5000), (6, 6000), (7, 7000), (8, 8000), (9, 9000);
delete from t1 where x >= 1;
insert into t1(x, y) values (1, 1001), (2, 2001), (3, 3001), (4, 4001), (5, 5001), (6, 6001);
insert into t1(x, y, sys_start) values (7, 7001, DEFAULT);
insert into t1(x, y, sys_end) values (8, 8001, DEFAULT);
insert into t1(x, y, sys_start, sys_end) values (9, 9001, DEFAULT, DEFAULT);
insert into t2 select x, y from t1 for system_time all;
select x, y from t1;
x y
1 1001
2 2001
3 3001
4 4001
5 5001
6 6001
7 7001
8 8001
9 9001
select x, y from t2;
x y
1 1000
2 2000
3 3000
4 4000
5 5000
6 6000
7 7000
8 8000
9 9000
1 1001
2 2001
3 3001
4 4001
5 5001
6 6001
7 7001
8 8001
9 9001
drop table t1;
drop table t2;
#
# MDEV-16546 System versioning setting to allow history modification
#
set @@session.time_zone='+00:00';
create table t1(x int primary key) with system versioning;
create table t2(y int primary key,
row_start timestamp(6) as row start invisible,
row_end timestamp(6) as row end invisible,
period for system_time (row_start, row_end))
with system versioning;
create table t3(z int primary key,
row_start timestamp(6) as row start,
row_end timestamp(6) as row end,
period for system_time (row_start, row_end))
with system versioning;
insert into t1(x, row_start, row_end) values (2, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR 42S22: Unknown column 'row_start' in 'field list'
insert into t2(y, row_start, row_end) values (2, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR HY000: The value specified for generated column 'row_start' in table 't2' has been ignored
set @@system_versioning_insert_history= 1;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`x` int(11) NOT NULL,
PRIMARY KEY (`x`)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci WITH SYSTEM VERSIONING
insert into t1(x, row_start, row_end) values (3, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
insert into t2(y, row_start, row_end) values (4, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
insert into t3 values (5, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
insert into t3 values (5, '1980-01-02 00:00:00', '1980-01-01 00:00:01');
ERROR HY000: Incorrect row_start value: '1980-01-02 00:00:00.000000'
select x, row_start, row_end from t1 for system_time all;
x row_start row_end
3 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
select y, row_start, row_end from t2 for system_time all;
y row_start row_end
4 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
select z, row_start, row_end from t3 for system_time all;
z row_start row_end
5 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
insert into t1(x) values (1);
insert into t2(y) values (1);
update t1 set x= x + 1;
update t1 set row_start= '1971-01-01 00:00:00';
ERROR 42S22: Unknown column 'row_start' in 'field list'
update t2 set row_start= '1971-01-01 00:00:00';
ERROR HY000: The value specified for generated column 'row_start' in table 't2' has been ignored
insert t1 (x) values (2) on duplicate key update x= 3, row_end= '1970-01-01 00:00:00';
ERROR 42S22: Unknown column 'row_end' in 'field list'
insert t2 (y) values (1) on duplicate key update y= 3, row_end= '1970-01-01 00:00:00';
ERROR HY000: The value specified for generated column 'row_end' in table 't2' has been ignored
insert t2 (y,row_end) values (1, '1970-01-01 00:00:00') on duplicate key update y= 3;
ERROR HY000: The value specified for generated column 'row_end' in table 't2' has been ignored
insert into t1 values (4);
insert into t1 set x= 5, row_start= '1980-01-01 00:00:00', row_end= '1980-01-01 00:00:01';
insert into t1(x, row_start, row_end) values (6, '1980-01-01 00:00:01', '1980-01-01 00:00:00');
ERROR HY000: Incorrect row_start value: '1980-01-01 00:00:01.000000'
insert into t1(x, row_start, row_end) values (7, '1980-01-01 00:00:11', '1980-01-01 00:00:11');
ERROR HY000: Incorrect row_start value: '1980-01-01 00:00:11.000000'
insert into t1(x, row_start) values (8, '1980-01-01 00:00:22');
insert into t1(x, row_end) values (9, '1980-01-01 00:00:33');
ERROR HY000: Incorrect row_start value: 'now'
insert into t1(x, row_end) values (10, TIMESTAMP'2038-01-19 03:14:07.999999');
select x, check_row_ts(row_start, row_end) from t1 for system_time all order by x;
x check_row_ts(row_start, row_end)
1 HISTORICAL ROW
2 CURRENT ROW
3 HISTORICAL ROW
4 CURRENT ROW
5 HISTORICAL ROW
8 CURRENT ROW
10 CURRENT ROW
select x, row_start, row_end from t1 for system_time all
where x > 1 and row_end < TIMESTAMP'2038-01-19 03:14:07.999999' order by x, row_start, row_end;
x row_start row_end
3 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
5 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
# Direct insert is not possible for TRX_ID versioning
create or replace table t2(y int primary key,
row_start bigint unsigned as row start,
row_end bigint unsigned as row end,
period for system_time (row_start, row_end))
with system versioning engine innodb;
insert into t2(y, row_start, row_end) values (0, 1, 2);
ERROR HY000: The value specified for generated column 'row_start' in table 't2' has been ignored
set @@system_versioning_insert_history= 0;
## INSERT..SELECT
create or replace table t2 like t1;
set @@system_versioning_insert_history= 1;
insert into t2 (x, row_start, row_end) select x, row_start, row_end from t1 for system_time all;
select x, check_row_ts(row_start, row_end) from t2 for system_time all order by x;
x check_row_ts(row_start, row_end)
1 HISTORICAL ROW
2 CURRENT ROW
3 HISTORICAL ROW
4 CURRENT ROW
5 HISTORICAL ROW
8 CURRENT ROW
10 CURRENT ROW
select x, row_start, row_end from t2 for system_time all
where x > 1 and row_end < TIMESTAMP'2038-01-19 03:14:07.999999' order by x, row_start, row_end;
x row_start row_end
3 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
5 1980-01-01 00:00:00.000000 1980-01-01 00:00:01.000000
set @@system_versioning_insert_history= 0;
# REPLACE / REPLACE .. SELECT
create or replace table t2(a int primary key,
row_start timestamp(6) as row start invisible,
row_end timestamp(6) as row end invisible,
period for system_time (row_start, row_end))
with system versioning;
replace into t2 (a, row_start, row_end) values (1, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR HY000: The value specified for generated column 'row_start' in table 't2' has been ignored
replace into t2 (a, row_start, row_end) select x, row_start, row_end from t1;
ERROR HY000: The value specified for generated column 'row_start' in table 't2' has been ignored
create or replace table t2 (a int primary key) with system versioning;
replace into t2 (a, row_start, row_end) values (1, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR 42S22: Unknown column 'row_start' in 'field list'
replace into t2 (a, row_start, row_end) select x, row_start, row_end from t1;
ERROR 42S22: Unknown column 'row_start' in 'field list'
set @@system_versioning_insert_history= 1;
# REPLACE ignores system_versioning_insert_history
replace into t2 (a, row_end) values (0, '1980-01-01 00:00:00');
ERROR 42S22: Unknown column 'row_end' in 'field list'
replace into t3 (z, row_start) values (0, '1980-01-01 00:00:00');
ERROR HY000: The value specified for generated column 'row_start' in table 't3' has been ignored
replace into t3 values (0, '1980-01-01 00:00:00', '1981-01-01 00:00:00');
ERROR HY000: The value specified for generated column 'row_start' in table 't3' has been ignored
# LOAD DATA
select x, row_start, row_end into outfile 'DATAFILE' from t1 for system_time all;
create or replace table t2 like t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`x` int(11) NOT NULL,
PRIMARY KEY (`x`)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci WITH SYSTEM VERSIONING
set @@system_versioning_insert_history= 1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`x` int(11) NOT NULL,
PRIMARY KEY (`x`)
) ENGINE=DEFAULT_ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci WITH SYSTEM VERSIONING
load data infile 'DATAFILE' into table t2 (x, row_start, row_end);
select x, check_row_ts(row_start, row_end) from t2 for system_time all order by x;
x check_row_ts(row_start, row_end)
1 HISTORICAL ROW
2 CURRENT ROW
3 HISTORICAL ROW
4 CURRENT ROW
5 HISTORICAL ROW
8 CURRENT ROW
10 CURRENT ROW
select row_start = '1980-01-01 00:00:00', row_end = '1980-01-01 00:00:01' from t2 for system_time all where x = 3;
row_start = '1980-01-01 00:00:00' row_end = '1980-01-01 00:00:01'
1 1
# Honor secure_timestamp option
# restart: --secure-timestamp=YES
set @@system_versioning_insert_history= 1;
insert into t3(z, row_start, row_end) values (8, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR HY000: The MariaDB server is running with the --secure-timestamp=YES option so it cannot execute this statement
insert into t3 values (8, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR HY000: The MariaDB server is running with the --secure-timestamp=YES option so it cannot execute this statement
# restart: --secure-timestamp=REPLICATION
create user nobody;
grant all privileges on test.* to nobody;
set @@system_versioning_insert_history= 1;
insert into test.t3(z, row_start, row_end) values (9, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR 42000: Access denied; you need (at least one of) the BINLOG REPLAY privilege(s) for this operation
insert into test.t3 values (9, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR 42000: Access denied; you need (at least one of) the BINLOG REPLAY privilege(s) for this operation
# restart: --secure-timestamp=SUPER
set @@system_versioning_insert_history= 1;
insert into test.t3(z, row_start, row_end) values (10, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
set @@system_versioning_insert_history= 1;
insert into test.t3(z, row_start, row_end) values (7, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR 42000: Access denied; you need (at least one of) the SUPER, BINLOG REPLAY privilege(s) for this operation
insert into test.t3 values (7, '1980-01-01 00:00:00', '1980-01-01 00:00:01');
ERROR 42000: Access denied; you need (at least one of) the SUPER, BINLOG REPLAY privilege(s) for this operation
use test;
# restart: --secure-timestamp=NO
drop tables t1, t2, t3;
#
# MDEV-29813 REPLACE/IGNORE does not work with historical records in InnoDB
#
set sql_mode='STRICT_ALL_TABLES';
create or replace table t1 (a int) with system versioning;
set system_versioning_insert_history= on;
insert into t1 (a,row_start,row_end) values (1,'2022-01-01','2023-01-01'),(1,'2022-01-01','2023-01-01');
select a,row_start,row_end into outfile 'mdev29813.txt' from t1 for system_time all;
create or replace table t1 (a int primary key) with system versioning;
load data infile 'mdev29813.txt' ignore into table t1 (a,row_start,row_end);
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
select a,row_start,row_end from t1 for system_time all;
a row_start row_end
1 2022-01-01 00:00:00.000000 2023-01-01 00:00:00.000000
create or replace table t1 (a int primary key) with system versioning;
insert ignore into t1 (a,row_start,row_end) values (1,'2022-01-01','2023-01-01'),(1,'2022-01-01','2023-01-01');
Warnings:
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
select a,row_start,row_end from t1 for system_time all;
a row_start row_end
1 2022-01-01 00:00:00.000000 2023-01-01 00:00:00.000000
drop table t1;
set sql_mode=default;
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