mirror of
https://github.com/MariaDB/server.git
synced 2025-07-05 12:42:17 +03:00
non-standard, redundant, potentially risky in the future, hides bugs. See #383, #384, #385 Fixed a parser bug where SELECT * FROM (t1 join t2) FOR SYSTEM_TIME ... was not an error.
34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
create table t (
|
|
a int,
|
|
b int without system versioning
|
|
) with system versioning;
|
|
|
|
insert into t values(1, 2);
|
|
insert into t values(3, 4);
|
|
select * from t;
|
|
select a from t for system_time as of timestamp now(6);
|
|
select a, b, b+0 from t for system_time as of timestamp now(6);
|
|
select * from t for system_time as of timestamp now(6);
|
|
select count(*) from t for system_time as of timestamp now(6) group by b;
|
|
select * from t for system_time as of timestamp now(6) order by b asc;
|
|
select * from t for system_time as of timestamp now(6) order by b desc;
|
|
select * from t for system_time as of timestamp now(6) group by a having a=2;
|
|
select * from t for system_time as of timestamp now(6) group by b having b=2;
|
|
select a from t for system_time as of timestamp now(6) where b=2;
|
|
select a from t for system_time as of timestamp now(6) where b=NULL;
|
|
select a from t for system_time as of timestamp now(6) where b is NULL;
|
|
select count(*), b from t for system_time as of timestamp now(6) group by b having b=NULL;
|
|
select a, b from t;
|
|
|
|
create or replace table t (
|
|
a int,
|
|
b int not null without system versioning
|
|
) with system versioning;
|
|
|
|
insert into t values (1, 2), (3, 4);
|
|
|
|
select * from t for system_time as of timestamp now(6);
|
|
select * from t for system_time as of timestamp now(6) where b is NULL;
|
|
|
|
drop table t;
|