mirror of
https://github.com/FirebirdSQL/firebird-qa.git
synced 2025-01-22 13:33:07 +01:00
81 lines
2.0 KiB
Python
81 lines
2.0 KiB
Python
#coding:utf-8
|
|
|
|
"""
|
|
ID: issue-5432
|
|
ISSUE: 5432
|
|
TITLE: Regression: LEFT JOIN incorrectly pushes COALESCE into the inner stream causing wrong results
|
|
DESCRIPTION:
|
|
JIRA: CORE-5149
|
|
FBTEST: bugs.core_5149
|
|
"""
|
|
|
|
import pytest
|
|
from firebird.qa import *
|
|
|
|
db = db_factory()
|
|
|
|
test_script = """
|
|
-- Confirmed: wrong result on WI-V3.0.0.32380; works fine on LI-V3.0.0.32381.
|
|
recreate table t_stock (
|
|
tnr varchar(16),
|
|
amount integer
|
|
);
|
|
|
|
recreate table t_main (
|
|
tnr varchar(16) primary key using index t_main_tnr,
|
|
minb integer
|
|
);
|
|
|
|
alter table t_stock
|
|
add constraint fk_t_stock_1
|
|
foreign key (tnr) references t_main (tnr)
|
|
on delete cascade on update cascade
|
|
using index t_stock_tnr
|
|
;
|
|
commit;
|
|
|
|
insert into t_main (tnr, minb) values ('aaa', 0);
|
|
insert into t_main (tnr, minb) values ('bbb', 10);
|
|
insert into t_main (tnr, minb) values ('ccc', 10);
|
|
insert into t_main (tnr, minb) values ('ddd', 10);
|
|
|
|
insert into t_stock (tnr, amount) values ('aaa', 100);
|
|
insert into t_stock (tnr, amount) values ('bbb', 5);
|
|
insert into t_stock (tnr, amount) values ('ccc', 15);
|
|
commit;
|
|
|
|
set list on;
|
|
|
|
select
|
|
a.tnr
|
|
,a.minb
|
|
,b.amount as b_amount
|
|
,coalesce(b.amount,0) as coalesce_b_amt
|
|
from t_main a
|
|
left join t_stock b on a.tnr = b.tnr
|
|
where a.minb > coalesce(b.amount,0)
|
|
order by a.tnr
|
|
;
|
|
"""
|
|
|
|
act = isql_act('db', test_script)
|
|
|
|
expected_stdout = """
|
|
TNR bbb
|
|
MINB 10
|
|
B_AMOUNT 5
|
|
COALESCE_B_AMT 5
|
|
|
|
TNR ddd
|
|
MINB 10
|
|
B_AMOUNT <null>
|
|
COALESCE_B_AMT 0
|
|
"""
|
|
|
|
@pytest.mark.version('>=3.0')
|
|
def test_1(act: Action):
|
|
act.expected_stdout = expected_stdout
|
|
act.execute()
|
|
assert act.clean_stdout == act.clean_expected_stdout
|
|
|