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create 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;
create table t2(
id int unsigned auto_increment primary key,
x int unsigned,
y int unsigned);
insert into t1(x, y) values(1, 11);
insert into t2(x, y) values(1, 11);
insert into t1(x, y) values(2, 12);
insert into t2(x, y) values(2, 12);
insert into t1(x, y) values(3, 13);
insert into t2(x, y) values(3, 13);
insert into t1(x, y) values(4, 14);
insert into t2(x, y) values(4, 14);
insert into t1(x, y) values(5, 15);
insert into t2(x, y) values(5, 15);
insert into t1(x, y) values(6, 16);
insert into t2(x, y) values(6, 16);
insert into t1(x, y) values(7, 17);
insert into t2(x, y) values(7, 17);
insert into t1(x, y) values(8, 18);
insert into t2(x, y) values(8, 18);
insert into t1(x, y) values(9, 19);
insert into t2(x, y) values(9, 19);
select t1.x = t2.x and t1.y = t2.y as A, t1.x, t1.y, t2.x, t2.y from t1 inner join t2 on t1.id = t2.id;
A x y x y
1 1 11 1 11
1 2 12 2 12
1 3 13 3 13
1 4 14 4 14
1 5 15 5 15
1 6 16 6 16
1 7 17 7 17
1 8 18 8 18
1 9 19 9 19
delete from t1 where x = 2;
delete from t2 where x = 2;
select t1.x = t2.x and t1.y = t2.y as A, t1.x, t1.y, t2.x, t2.y from t1 inner join t2 on t1.id = t2.id;
A x y x y
1 1 11 1 11
1 3 13 3 13
1 4 14 4 14
1 5 15 5 15
1 6 16 6 16
1 7 17 7 17
1 8 18 8 18
1 9 19 9 19
delete from t1 where x > 7;
delete from t2 where x > 7;
select t1.x = t2.x and t1.y = t2.y as A, t1.x, t1.y, t2.x, t2.y from t1 inner join t2 on t1.id = t2.id;
A x y x y
1 1 11 1 11
1 3 13 3 13
1 4 14 4 14
1 5 15 5 15
1 6 16 6 16
1 7 17 7 17
drop table t1;
drop table t2;
#
# MDEV-22562 Assertion `next_insert_id == 0' upon UPDATE on system-versioned table
#
create table t1 (pk integer auto_increment primary key) engine=myisam with system versioning;
insert delayed into t1 (pk) values (1);
lock tables t1 write;
update t1 set pk= 0;
update t1 set pk= 0;
unlock tables;
drop table t1;
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