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67 lines
1.5 KiB
Python
67 lines
1.5 KiB
Python
#coding:utf-8
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"""
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ID: issue-4653
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ISSUE: 4653
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TITLE: not correct result function LAG, if OFFSET value are assigned from a table
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DESCRIPTION:
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JIRA: CORE-4330
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FBTEST: bugs.core_4330
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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 list on;
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with t(a, b) as
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(
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select 1, null from rdb$database
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union all
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select 2, 1 from rdb$database
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union all
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select 3, 2 from rdb$database
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union all
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select 4, 3 from rdb$database
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union all
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select 5, 2 from rdb$database
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)
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select
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a,
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b,
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lag(a, b)over(order by a) as la
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from t ;
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"""
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act = isql_act('db', test_script)
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expected_stdout = """
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A 1
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B <null>
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LA <null>
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A 2
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B 1
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LA 1
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A 3
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B 2
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LA 1
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A 4
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B 3
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LA 1
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A 5
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B 2
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LA 3
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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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