set global innodb_rds_flashback_enabled = false;

create table tt (a int);
create table pp (a int);
create view vv as select * from pp;

# No reserved key words added
create table scn (a int, scn int);
drop table scn;

# Normal cases ===============

# in from list 
select * from tt as of scn 1;
select * from tt as of scn 1 alias;
select * from tt as of scn 1 as alias;
select * from tt as of timestamp now() as alias;
select * from tt as of timestamp now() alias;
select * from tt as of timestamp now();

# in subquery
select * from (select * from tt as of scn 1 as alias union all select * from tt as of timestamp now()) ff;

# in with clause
with ff as (select * from tt as of scn 1 as alias union all select * from tt as of timestamp now()) select * from ff;
with ff as (select * from tt as of scn 1 as alias union all select * from tt as of timestamp now()) update pp set a=0 where a=(select max(a) from ff);

# in where or having cond
select * from pp where a=(select max(a) from tt  as of scn 1 as alias);
select * from tt group by a having a< (select sum(a) from pp as of scn 1 as alias);
update tt set a=0 where a < (select sum(a) from pp as of scn 1 as alias);

# in join
select ll.* from tt as of timestamp now() ll  join pp as of scn 1 as vv on vv.a=ll.a;

# constant expr
select * from tt as of scn (select 1+2);
select * from tt as of scn (1+2);
select * from tt as of timestamp (select date_add(current_timestamp, interval 1 day));
select * from tt as of timestamp date_add(current_timestamp, interval 1 day);

# execution const expr
insert into pp values(1);
select * from tt as of scn (select max(a) from pp);
delete from pp;

# timestamp
select * from tt as of timestamp now();

# cast type
select * from tt as of scn '123';
select * from tt as of timestamp '2020-01-01 01:01:01';

# sum, avg
select * from tt as of scn (select sum(a) from pp);
--error ER_AS_OF_BAD_SCN_TYPE
select * from tt as of scn (select avg(a) from pp);

# Bad parameter cases =======================

--error ER_AS_OF_BAD_SCN_TYPE
select * from tt as of scn 0.11;

--error ER_AS_OF_BAD_TIMESTAMP_TYPE
select * from tt as of timestamp (1<2);

--error 1054
select * from tt as of scn (a<b);


# Not surpported, bypass ==========================

create temporary table tmp(a int);
select * from tmp as of scn 1;
drop table tmp;

# now bypass, do not raise error for non-innnodb table
select * from information_schema.INNODB_TABLESPACES as of scn 1 limit 0;

--error ER_AS_OF_CONFLICT_LOCK_CLAUSE
select * from tt as of scn 1 as alias for update;
--error ER_AS_OF_CONFLICT_LOCK_CLAUSE
select * from tt as of scn 1 as alias LOCK IN SHARE MODE;

select * from vv as of scn 1;

lock tables vv read;
select * from vv as of scn 1;
unlock tables;

--error ER_AS_OF_NOT_SELECT
update tt as of scn 1 as alias set a=0;

--error 1064
delete from tt as of scn 1 as alias;

--error 1064
insert into tt as of scn 1 values (1);

--error 1064
create table no_ok as of scn 1 alias (a int);

--error 1064
alter table tt as of scn 1 add column b int;

--error 1064
lock table tt as of scn 1;

--error 1064
handler tt as of scn 1 open;

--error 1064
replace into tt as of scn 1  valuse (1);

# =====================
set global innodb_rds_flashback_enabled = default;
drop view vv;
drop table tt;
drop table pp;