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create or replace table t1 (
x int,
row_start SYS_TYPE as row start invisible,
row_end SYS_TYPE as row end invisible,
period for system_time (row_start, row_end))
with system versioning;
create or replace table tf engine=FEDERATED connection='mysql://root@127.0.0.1:MASTER_MYPORT/test/t1';
show create table tf;
Table Create Table
tf CREATE TABLE `tf` (
`x` int(11) DEFAULT NULL,
`row_start` SYS_TYPE NOT NULL INVISIBLE DEFAULT 0,
`row_end` SYS_TYPE NOT NULL INVISIBLE DEFAULT 0
) ENGINE=FEDERATED DEFAULT CHARSET=latin1 CONNECTION='mysql://root@127.0.0.1:MASTER_MYPORT/test/t1'
# INSERT
insert into t1 values (1);
select * from tf;
x
1
insert into tf (x) values (2);
select * from t1;
x
1
2
select * from tf;
x
1
2
# UPDATE
update tf set x= x + 2;
select *, check_row(row_start, row_end) from t1 for system_time all
order by x;
x check_row(row_start, row_end)
1 HISTORICAL ROW
2 HISTORICAL ROW
3 CURRENT ROW
4 CURRENT ROW
# DELETE
delete from tf;
select *, check_row(row_start, row_end) from t1 for system_time all
order by x;
x check_row(row_start, row_end)
1 HISTORICAL ROW
2 HISTORICAL ROW
3 HISTORICAL ROW
4 HISTORICAL ROW
select * from tf;
x
# TRUNCATE
truncate tf;
select * from t1 for system_time all;
x
# REPLACE
create or replace table t2 (
id int primary key, y int,
row_start SYS_TYPE as row start invisible,
row_end SYS_TYPE as row end invisible,
period for system_time (row_start, row_end))
with system versioning;
create or replace table t2f engine=FEDERATED connection='mysql://root@127.0.0.1:MASTER_MYPORT/test/t2';
insert t2f (id, y) values (1, 2);
replace t2f (id, y) values (1, 3);
select *, check_row(row_start, row_end) from t2 for system_time all
order by y;
id y check_row(row_start, row_end)
1 2 HISTORICAL ROW
1 3 CURRENT ROW
# VIEW
create or replace view vt1 as select * from tf;
insert into vt1 values (3);
update vt1 set x= x + 1;
select *, check_row(row_start, row_end) from t1 for system_time all
order by x;
x check_row(row_start, row_end)
3 HISTORICAL ROW
4 CURRENT ROW
delete from vt1;
select *, check_row(row_start, row_end) from t1 for system_time all
order by x;
x check_row(row_start, row_end)
3 HISTORICAL ROW
4 HISTORICAL ROW
# multi-UPDATE
truncate t1;
truncate t2;
insert into t1 values (1);
insert into t2 values (2, 2);
update tf, t2f set tf.x= 11, t2f.y= 22;
select *, check_row(row_start, row_end) from t1 for system_time all
order by x;
x check_row(row_start, row_end)
1 HISTORICAL ROW
11 CURRENT ROW
select *, check_row(row_start, row_end) from t2 for system_time all
order by y;
id y check_row(row_start, row_end)
2 2 HISTORICAL ROW
2 22 CURRENT ROW
drop database test;
create database test;
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