mirror of
https://github.com/MariaDB/server.git
synced 2025-12-09 08:01:34 +03:00
9e9af76eaf
* session sysvars; * moved value parsing to set variable phase; * renamed 'temporal_current_timestamp' to 'vers_current_time'.
151 lines
4.5 KiB
Plaintext
151 lines
4.5 KiB
Plaintext
create table t (a int) with system versioning;
|
|
insert into t values (1);
|
|
update t set a= 2;
|
|
show global variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time NOW
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time NOW
|
|
select * from t;
|
|
a
|
|
2
|
|
set vers_current_time = '2031-1-1 0:0:0';
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 2031-01-01 00:00:00.000000
|
|
select * from t;
|
|
a
|
|
2
|
|
set vers_current_time = '2011-1-1 0:0:0';
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 2011-01-01 00:00:00.000000
|
|
select * from t;
|
|
a
|
|
set vers_current_time = 'all';
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time ALL
|
|
select * from t;
|
|
a
|
|
2
|
|
1
|
|
create view vt as select * from t;
|
|
select * from t;
|
|
a
|
|
2
|
|
1
|
|
drop view vt;
|
|
select * from (select * from t) as tt;
|
|
a
|
|
2
|
|
1
|
|
set global vers_current_time= 'alley';
|
|
ERROR 42000: Variable 'vers_current_time' can't be set to the value of 'alley'
|
|
set global vers_current_time= null;
|
|
ERROR 42000: Variable 'vers_current_time' can't be set to the value of 'NULL'
|
|
set global vers_current_time= 1;
|
|
ERROR 42000: Incorrect argument type to variable 'vers_current_time'
|
|
set global vers_current_time= 1.1;
|
|
ERROR 42000: Incorrect argument type to variable 'vers_current_time'
|
|
set vers_current_time= 'alley';
|
|
ERROR 42000: Variable 'vers_current_time' can't be set to the value of 'alley'
|
|
set vers_current_time= null;
|
|
ERROR 42000: Variable 'vers_current_time' can't be set to the value of 'NULL'
|
|
set vers_current_time= 1;
|
|
ERROR 42000: Incorrect argument type to variable 'vers_current_time'
|
|
set vers_current_time= 1.1;
|
|
ERROR 42000: Incorrect argument type to variable 'vers_current_time'
|
|
set global vers_current_time= '1911-11-11 11:11:11.1111119';
|
|
show global variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1911-11-11 11:11:11.111111
|
|
set global vers_current_time= '1900-01-01 00:00:00';
|
|
show global variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1900-01-01 00:00:00.000000
|
|
set global vers_current_time= timestamp'1911-11-11 11:11:11.1111119';
|
|
Warnings:
|
|
Note 1292 Truncated incorrect datetime value: '1911-11-11 11:11:11.1111119'
|
|
show global variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1911-11-11 11:11:11.111111
|
|
set @ts= timestamp'1900-01-01 00:00:00';
|
|
set global vers_current_time= @ts;
|
|
show global variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1900-01-01 00:00:00.000000
|
|
set vers_current_time= '1911-11-11 11:11:11.1111119';
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1911-11-11 11:11:11.111111
|
|
set vers_current_time= '1900-01-01 00:00:00';
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1900-01-01 00:00:00.000000
|
|
set vers_current_time= timestamp'1911-11-11 11:11:11.1111119';
|
|
Warnings:
|
|
Note 1292 Truncated incorrect datetime value: '1911-11-11 11:11:11.1111119'
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1911-11-11 11:11:11.111111
|
|
set @ts= timestamp'1900-01-01 00:00:00';
|
|
set vers_current_time= @ts;
|
|
show variables like 'vers_current_time';
|
|
Variable_name Value
|
|
vers_current_time 1900-01-01 00:00:00.000000
|
|
set global vers_current_time= 'now';
|
|
set vers_current_time= 'now';
|
|
show variables where variable_name = "vers_hide";
|
|
Variable_name Value
|
|
vers_hide IMPLICIT
|
|
select * from t for system_time all;
|
|
a
|
|
2
|
|
1
|
|
set vers_hide= AUTO;
|
|
select * from t;
|
|
a
|
|
2
|
|
select * from t for system_time as of timestamp current_timestamp(6);
|
|
a
|
|
2
|
|
select * from t for system_time all;
|
|
a sys_trx_start sys_trx_end
|
|
2 TIMESTAMP TIMESTAMP
|
|
1 TIMESTAMP TIMESTAMP
|
|
select * from t for system_time timestamp from '0-0-0' to current_timestamp(6);
|
|
a sys_trx_start sys_trx_end
|
|
2 TIMESTAMP TIMESTAMP
|
|
1 TIMESTAMP TIMESTAMP
|
|
select * from t for system_time timestamp between '0-0-0' and current_timestamp(6);
|
|
a sys_trx_start sys_trx_end
|
|
2 TIMESTAMP TIMESTAMP
|
|
1 TIMESTAMP TIMESTAMP
|
|
set vers_hide= NEVER;
|
|
select * from t;
|
|
a sys_trx_start sys_trx_end
|
|
2 TIMESTAMP TIMESTAMP
|
|
set vers_hide= FULL;
|
|
create or replace table t (
|
|
x int,
|
|
st timestamp(6) generated always as row start,
|
|
en timestamp(6) generated always as row end,
|
|
period for system_time (st, en))
|
|
with system versioning;
|
|
show create table t;
|
|
Table Create Table
|
|
t CREATE TABLE `t` (
|
|
`x` int(11) DEFAULT NULL
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|
insert into t values (1);
|
|
delete from t;
|
|
select * from t;
|
|
x
|
|
select * from t for system_time all;
|
|
x
|
|
1
|
|
drop table t;
|
|
set vers_hide= IMPLICIT;
|