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46 lines
1.2 KiB
Python
46 lines
1.2 KiB
Python
#coding:utf-8
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"""
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ID: issue-3909
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ISSUE: 3909
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TITLE: Nested loop plan is chosen instead of the sort merge for joining independent
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streams using keys of different types
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DESCRIPTION:
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JIRA: CORE-3553
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FBTEST: bugs.core_3553
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NOTES:
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[07.04.2022] pzotov
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FB 5.0.0.455 and later: data sources with equal cardinality now present in the HASH plan in order they are specified in the query.
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Reversed order was used before this build. Because of this, two cases of expected stdout must be taken in account, see variables
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'fb3x_checked_stdout' and 'fb5x_checked_stdout'.
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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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set planonly;
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select count(*)
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from rdb$database d1
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join rdb$database d2 on cast(d1.rdb$relation_id as char(10)) = cast(d2.rdb$relation_id as char(20));
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"""
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act = isql_act('db', test_script)
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fb3x_checked_stdout = """
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PLAN HASH (D2 NATURAL, D1 NATURAL)
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"""
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fb5x_checked_stdout = """
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PLAN HASH (D1 NATURAL, D2 NATURAL)
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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 = fb3x_checked_stdout if act.is_version('<5') else fb5x_checked_stdout
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act.execute()
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assert act.clean_stdout == act.clean_expected_stdout
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