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40 lines
779 B
Python
40 lines
779 B
Python
#coding:utf-8
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"""
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ID: issue-4430
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ISSUE: 4430
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TITLE: Bad optimization of OR predicates applied to unions
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DESCRIPTION:
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JIRA: CORE-4102
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FBTEST: bugs.core_4102
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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 = """SET PLANONLY;
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select * from
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(
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select rdb$relation_id as id
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from rdb$relations r
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union all
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select rdb$relation_id as id
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from rdb$relations r
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) x
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where x.id = 0 or x.id = 1;
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"""
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act = isql_act('db', test_script)
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expected_stdout = """PLAN (X R INDEX (RDB$INDEX_1, RDB$INDEX_1), X R INDEX (RDB$INDEX_1, RDB$INDEX_1))
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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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