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firebird-qa/tests/bugs/core_3283_test.py

57 lines
1.1 KiB
Python

#coding:utf-8
"""
ID: issue-3651
ISSUE: 3651
TITLE: BAD PLAN with using LEFT OUTER JOIN in SUBSELECT
DESCRIPTION:
JIRA: CORE-3283
FBTEST: bugs.core_3283
"""
import pytest
from firebird.qa import *
db = db_factory()
test_script = """
recreate table ttt (
id int
,constraint ttt_pk primary key (id) using index ttt_id
);
insert into ttt (id) values (0);
insert into ttt (id) values (1);
insert into ttt (id) values (2);
insert into ttt (id) values (3);
insert into ttt (id) values (4);
insert into ttt (id) values (5);
commit;
set planonly;
select t1.id from ttt t1
where t1.id =
(select t3.id
from ttt t2
left join ttt t3 on t3.id > t2.id
where t2.id = 3
order by t3.id
rows 1
);
"""
act = isql_act('db', test_script)
expected_stdout = """
PLAN SORT (JOIN (T2 INDEX (TTT_ID), T3 INDEX (TTT_ID)))
PLAN (T1 INDEX (TTT_ID))
"""
@pytest.mark.version('>=3')
def test_1(act: Action):
act.expected_stdout = expected_stdout
act.execute()
assert act.clean_stdout == act.clean_expected_stdout