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firebird-qa/tests/bugs/core_1550_test.py

50 lines
1.1 KiB
Python

#coding:utf-8
#
# id: bugs.core_1550
# title: Unnecessary index scan happens when the same index is mapped to both WHERE and ORDER BY clauses
# decription:
# tracker_id:
# min_versions: ['3.0']
# versions: 3.0
# qmid: bugs.core_1550
import pytest
from firebird.qa import db_factory, isql_act, Action
# version: 3.0
# resources: None
substitutions_1 = []
init_script_1 = """"""
db_1 = db_factory(sql_dialect=3, init=init_script_1)
test_script_1 = """
recreate table test(id int);
commit;
insert into test(id) select r.rdb$relation_id from rdb$relations r;
commit;
create index test_id on test(id);
commit;
set planonly;
select *
from test
where id < 10
order by id;
"""
act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
expected_stdout_1 = """
PLAN (TEST ORDER TEST_ID)
"""
@pytest.mark.version('>=3.0')
def test_1(act_1: Action):
act_1.expected_stdout = expected_stdout_1
act_1.execute()
assert act_1.clean_expected_stdout == act_1.clean_stdout