mirror of
https://github.com/FirebirdSQL/firebird-qa.git
synced 2025-01-22 21:43:06 +01:00
130 lines
4.7 KiB
Python
130 lines
4.7 KiB
Python
#coding:utf-8
|
|
|
|
"""
|
|
ID: issue-8225
|
|
ISSUE: https://github.com/FirebirdSQL/firebird/issues/8225
|
|
TITLE: Problematic queries when SubQueryConversion = true
|
|
DESCRIPTION:
|
|
NOTES:
|
|
[03.09.2024] pzotov
|
|
Parameter 'SubQueryConversion' currently presents only in FB 5.x and _NOT_ in FB 6.x.
|
|
Because of that, testing version are limited only for 5.0.2. FB 6.x currently is NOT tested.
|
|
|
|
Confirmed bug on 5.0.2.1479-adfe97a.
|
|
Checked on 5.0.2.1482-604555f.
|
|
"""
|
|
|
|
import pytest
|
|
from firebird.qa import *
|
|
from firebird.driver import driver_config, connect
|
|
|
|
init_script = """
|
|
create domain dm_emp_id smallint;
|
|
create domain dm_dep_id smallint;
|
|
create domain dm_name varchar(20);
|
|
|
|
create table department (
|
|
dept_no dm_dep_id not null
|
|
,dept_name dm_name not null
|
|
);
|
|
|
|
create table employee (
|
|
emp_no dm_emp_id not null
|
|
,last_name dm_name not null
|
|
,dept_no dm_dep_id not null
|
|
,constraint emp_key primary key (emp_no)
|
|
);
|
|
commit;
|
|
insert into department( dept_no, dept_name) values (1, 'd1');
|
|
insert into department( dept_no, dept_name) values (2, 'd2');
|
|
insert into department( dept_no, dept_name) values (3, 'd3');
|
|
insert into employee( emp_no, last_name, dept_no) values (1, 'e1', 1);
|
|
insert into employee( emp_no, last_name, dept_no) values (2, 'e2', 2);
|
|
insert into employee( emp_no, last_name, dept_no) values (3, 'e3', 3);
|
|
insert into employee( emp_no, last_name, dept_no) values (4, 'e4', 1);
|
|
insert into employee( emp_no, last_name, dept_no) values (5, 'e5', 1);
|
|
insert into employee( emp_no, last_name, dept_no) values (6, 'e6', 1);
|
|
insert into employee( emp_no, last_name, dept_no) values (7, 'e7', 2);
|
|
insert into employee( emp_no, last_name, dept_no) values (8, 'e8', 3);
|
|
insert into employee( emp_no, last_name, dept_no) values (9, 'e9', 3);
|
|
commit;
|
|
|
|
update department d set dept_no = -dept_no where exists(select * from employee e where e.dept_no = d.dept_no) rows 1;
|
|
insert into employee( emp_no, last_name, dept_no) values (12, 'e12', -(select max(dept_no)+1 from department) );
|
|
commit;
|
|
"""
|
|
|
|
db = db_factory(init=init_script)
|
|
|
|
act = python_act('db')
|
|
|
|
#-----------------------------------------------------------
|
|
|
|
def replace_leading(source, char="."):
|
|
stripped = source.lstrip()
|
|
return char * (len(source) - len(stripped)) + stripped
|
|
|
|
#-----------------------------------------------------------
|
|
|
|
@pytest.mark.version('>=5.0.2,<6')
|
|
def test_1(act: Action, capsys):
|
|
|
|
test_sql = """
|
|
select d.dept_no, d.dept_name from department d
|
|
where exists(select * from employee e where e.dept_no = d.dept_no)
|
|
order by dept_no rows 1
|
|
"""
|
|
|
|
for sq_conv in ('true','false',):
|
|
srv_cfg = driver_config.register_server(name = f'srv_cfg_8225_{sq_conv}', config = '')
|
|
db_cfg_name = f'db_cfg_8225_{sq_conv}'
|
|
db_cfg_object = driver_config.register_database(name = db_cfg_name)
|
|
db_cfg_object.server.value = srv_cfg.name
|
|
db_cfg_object.database.value = str(act.db.db_path)
|
|
db_cfg_object.config.value = f"""
|
|
SubQueryConversion = {sq_conv}
|
|
"""
|
|
|
|
with connect(db_cfg_name, user = act.db.user, password = act.db.password) as con:
|
|
cur = con.cursor()
|
|
cur.execute("select g.rdb$config_name, g.rdb$config_value from rdb$database r left join rdb$config g on g.rdb$config_name = 'SubQueryConversion'")
|
|
for r in cur:
|
|
print(r[0],r[1])
|
|
|
|
ps = cur.prepare(test_sql)
|
|
print( '\n'.join([replace_leading(s) for s in ps.detailed_plan.split('\n')]) )
|
|
for r in cur.execute(ps):
|
|
print(r[0],r[1])
|
|
con.rollback()
|
|
|
|
act.expected_stdout = f"""
|
|
SubQueryConversion true
|
|
|
|
Select Expression
|
|
....-> First N Records
|
|
........-> Filter
|
|
............-> Hash Join (semi)
|
|
................-> Refetch
|
|
....................-> Sort (record length: 28, key length: 8)
|
|
........................-> Table "DEPARTMENT" as "D" Full Scan
|
|
................-> Record Buffer (record length: 25)
|
|
....................-> Table "EMPLOYEE" as "E" Full Scan
|
|
2 d2
|
|
|
|
SubQueryConversion false
|
|
|
|
Sub-query
|
|
....-> Filter
|
|
........-> Table "EMPLOYEE" as "E" Full Scan
|
|
Select Expression
|
|
....-> First N Records
|
|
........-> Refetch
|
|
............-> Sort (record length: 28, key length: 8)
|
|
................-> Filter
|
|
....................-> Table "DEPARTMENT" as "D" Full Scan
|
|
2 d2
|
|
"""
|
|
act.stdout = capsys.readouterr().out
|
|
assert act.clean_stdout == act.clean_expected_stdout
|
|
|