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mariadb/mysql-test/suite/versioning/t/optimized.test
Sergei Golubchik ca6454bcfe for now, remove FOR SYSTEM_TIME at the end of the query
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.
2017-12-13 21:51:20 +01:00

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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;
drop table t;