--source suite/xengine/include/have_xengine.inc

#
# XEngine-SE tests for reverse-ordered Column Families
#

create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);

create table t1 (
  pk int primary key,
  a int not null,
  b int not null,
  key(a) comment 'rev:foo',
  key(b) comment 'bar'
) engine=xengine;

insert into t1 select a,a,a  from t0;
insert into t1 select a+10,a+10,a+10  from t0;

--echo # Primary key is not in a reverse-ordered CF, so full table scan
--echo #   returns rows in ascending order:
select * from t1;

--replace_column 10 #
explain 
select a from t1 order by a limit 5;
select a from t1 order by a limit 5;

--replace_column 10 #
explain 
select b from t1 order by b limit 5;
select a from t1 order by a limit 5;

--replace_column 10 #
explain 
select a from t1 order by a desc limit 5;
select a from t1 order by a desc limit 5;

--replace_column 10 #
explain 
select b from t1 order by b desc limit 5;
select b from t1 order by b desc limit 5;

drop table t1;

--echo #
--echo # Try a primary key in a reverse-ordered CF.
--echo #

create table t2 (
  pk int,
  a int not null,
  primary key(pk) comment 'rev:cf1'
) engine=xengine;

insert into t2 select a,a from t0;
--echo # Primary key is in a reverse-ordered CF, so full table scan
--echo #   returns rows in descending order:
select * from t2;

set autocommit=0;
begin;
delete from t2 where a=3 or a=7;
select * from t2;
rollback;
set autocommit=1;

drop table t2;
drop table t0;

--source suite/xengine/include/check_xengine_log_error.inc