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SQL, IB: Copy history via CREATE .. SELECT [closes #157, #152]

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This commit is contained in:
Aleksey Midenkov
2017-03-24 16:00:42 +03:00
parent 7a525e7e93
commit 67cd92b6f4
29 changed files with 636 additions and 276 deletions
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88
mysql-test/suite/versioning/r/sysvars.result Normal file
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create table t (a int) with system versioning;
insert into t values (1);
update t set a= 2;
select * from t;
a
2
show variables where variable_name = "temporal_current_timestamp";
Variable_name Value
temporal_current_timestamp now
set global temporal_current_timestamp = '2031-1-1 0:0:0';
select * from t;
a
2
set global temporal_current_timestamp = '2011-1-1 0:0:0';
select * from t;
a
set global temporal_current_timestamp = 'all';
select * from t;
a
2
1
show variables where Variable_name like "temporal_current_timestamp%";
Variable_name Value
temporal_current_timestamp all
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 session temporal_current_timestamp = 'now';
ERROR HY000: Variable 'temporal_current_timestamp' is a GLOBAL variable and should be set with SET GLOBAL
set global temporal_current_timestamp = '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 global 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 global vers_hide= NEVER;
select * from t;
a sys_trx_start sys_trx_end
2 TIMESTAMP TIMESTAMP
set global 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 global vers_hide= IMPLICIT;