I'm using Firebird 4.0.2 from here: https://hub.docker.com/r/jacobalberty/firebird, according to:
select rdb$get_context('SYSTEM', 'ENGINE_VERSION')
from rdb$database;
Take this schema:
create table b (x int primary key);
create table a (x int primary key, y int references b);
insert into b values (1);
insert into b values (2);
insert into b values (3);
insert into b values (4);
insert into a values (1, 1);
insert into a values (2, 1);
insert into a values (3, 4);
insert into a values (4, 2);
Now, run this query:
select a.x, b.x
from a
left outer join b
on (
a.y = b.x
and a.x = b.x
)
order by a.x
It produces:
|X |X |
|---|---|
|1 |1 |
|2 | |
|4 | |
|3 | |
Clearly, the ordering of the last two rows is wrong. It should be:
|X |X |
|---|---|
|1 |1 |
|2 | |
|3 | |
|4 | |
I'm using Firebird 4.0.2 from here: https://hub.docker.com/r/jacobalberty/firebird, according to:
Take this schema:
Now, run this query:
It produces:
Clearly, the ordering of the last two rows is wrong. It should be: