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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;
#
# MDEV-15062 Information Schema COLUMNS Table does not show system versioning information
#
create or replace table t (x int with system versioning, y int);
select column_name, extra from information_schema.columns where table_name='t';
show create table t;
drop table t;
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