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63 lines
1.3 KiB
Python
63 lines
1.3 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_4366
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# title: Wrong result of WHERE predicate when it contains NULL IS NOT DISTINCT FROM (select min(NULL) from ...)
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# decription:
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# tracker_id: CORE-4366
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# min_versions: ['3.0']
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# versions: 3.0
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# qmid: None
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 3.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """
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recreate table tf(id int primary key, nm varchar(3)); commit;
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insert into tf values(5, 'qwe');
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insert into tf values(1, 'rty');
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insert into tf values(2, 'asd');
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insert into tf values(4, 'fgh');
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insert into tf values(3, 'mnb');
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insert into tf values(7, 'bvc');
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insert into tf values(9, 'zxc');
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insert into tf values(0, 'lkj');
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insert into tf values(6, 'oiu');
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insert into tf values(8, 'fgh');
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commit;
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"""
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db_1 = db_factory(page_size=4096, charset='NONE', sql_dialect=3, init=init_script_1)
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test_script_1 = """
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select nm from tf where null is not distinct from (select min(null) from tf) order by id rows 10;
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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NM
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======
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lkj
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rty
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asd
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mnb
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fgh
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qwe
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oiu
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bvc
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fgh
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zxc
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"""
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@pytest.mark.version('>=3.0')
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def test_1(act_1: Action):
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act_1.expected_stdout = expected_stdout_1
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act_1.execute()
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assert act_1.clean_stdout == act_1.clean_expected_stdout
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