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51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
#coding:utf-8
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"""
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ID: issue-7993
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ISSUE: https://github.com/FirebirdSQL/firebird/issues/7993
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TITLE: Unexpected results when using CASE WHEN with RIGHT JOIN
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NOTES:
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[06.02.2024] pzotov
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Confirmed bug on 6.0.0.247
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Checked on 6.0.0.249 -- all OK.
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Checked on 5.0.1.1331 (commit 86902a69), 4.0.5.3054 (commit 147bff1a)
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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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recreate table t0(c0 boolean);
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recreate table t1(c1 boolean);
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insert into t0 (c0) values (true);
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insert into t1 (c1) values (false);
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set count on;
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set list on;
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select t1.c1 as q1_c1, t0.c0 as q1_c0 from t1 right join t0 on t0.c0; -- false true
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select t1.c1 as q2_c1, t0.c0 as q2_c0 from t1 right join t0 on t0.c0 where (case t1.c1 when t1.c1 then null else true end); -- null true (unexpected)
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select (case t1.c1 when t1.c1 then null else true end ) as q3_result from t1 right join t0 on t0.c0; -- null
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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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Q1_C1 <false>
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Q1_C0 <true>
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Records affected: 1
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Records affected: 0
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Q3_RESULT <null>
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Records affected: 1
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"""
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@pytest.mark.version('>=4.0.5')
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def test_1(act: Action):
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act.expected_stdout = expected_stdout
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act.execute(combine_output = True)
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assert act.clean_stdout == act.clean_expected_stdout
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