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93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
#coding:utf-8
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"""
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ID: issue-4564
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ISSUE: 4564
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TITLE: Regression: recursive query in SQL query returns incorrect results if more than one branch bypass
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DESCRIPTION:
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JIRA: CORE-4240
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FBTEST: bugs.core_4240
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"""
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import pytest
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from firebird.qa import *
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db = db_factory()
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test_script = """
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with recursive h
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as (select 1 as code_horse,
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2 as code_father,
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3 as code_mother
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from rdb$database
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union all
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select 2 as code_horse,
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4 as code_father,
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5 as code_mother
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from rdb$database
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union all
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select 3 as code_horse,
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4 as code_father,
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5 as code_mother
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from rdb$database
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union all
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select 4 as code_horse,
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null as code_father,
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null as code_mother
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from rdb$database
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union all
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select 5 as code_horse,
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null as code_father,
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null as code_mother
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from rdb$database),
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r
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as (select h.code_horse as code_horse,
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h.code_father as code_father,
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h.code_mother as code_mother,
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cast('' as varchar(10)) as mark,
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0 as depth
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from h
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where h.code_horse = 1
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union all
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select h.code_horse as code_horse,
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h.code_father as code_father,
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h.code_mother as code_mother,
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'f' || r.mark as mark,
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r.depth + 1 as depth
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from r
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join h on r.code_father = h.code_horse
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where r.depth < 5
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union all
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select h.code_horse as code_horse,
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h.code_father as code_father,
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h.code_mother as code_mother,
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'm' || r.mark as mark,
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r.depth + 1 as depth
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from r
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join h on r.code_mother = h.code_horse
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where r.depth < 5)
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select *
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from r
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order by 1,2,3,4,5
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;
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"""
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act = isql_act('db', test_script, substitutions=[('[ \t]+', ' '), ('=', '')])
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expected_stdout = """
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CODE_HORSE CODE_FATHER CODE_MOTHER MARK DEPTH
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1 2 3 0
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2 4 5 f 1
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3 4 5 m 1
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4 <null> <null> ff 2
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4 <null> <null> fm 2
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5 <null> <null> mf 2
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5 <null> <null> mm 2
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"""
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@pytest.mark.version('>=3.0')
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def test_1(act: Action):
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act.expected_stdout = expected_stdout
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act.execute()
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assert act.clean_stdout == act.clean_expected_stdout
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