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70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
#coding:utf-8
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"""
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ID: issue-1791
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ISSUE: 1791
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TITLE: Incorrect result of recursive CTE query when recursive member's SELECT list contains expression using self-referenced fields
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DESCRIPTION:
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JIRA: CORE-1373
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FBTEST: bugs.core_1373
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"""
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import pytest
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from firebird.qa import *
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init_script = """RECREATE TABLE Phases
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(Id INT NOT NULL PRIMARY KEY, ParentPhaseId INT);
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CREATE GENERATOR GenPhases;
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COMMIT;
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INSERT INTO Phases VALUES(491, NULL);
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INSERT INTO Phases VALUES(494, 491);
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INSERT INTO Phases VALUES(495, 491);
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INSERT INTO Phases VALUES(497, 494);
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INSERT INTO Phases VALUES(498, NULL);
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-- below i want to renumber Phases table and keep parent-child relation
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SET GENERATOR GenPhases to 0;
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COMMIT;
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"""
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db = db_factory(init=init_script)
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test_script = """WITH RECURSIVE
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Tree (OldPhaseId, OldParentPhaseId, NewPhaseId, NewParentPhaseId) AS
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(
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SELECT P.Id, P.ParentPhaseId, GEN_ID(GenPhases, 1), CAST(NULL AS INTEGER)
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FROM Phases P
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WHERE P.ParentPhaseId IS NULL
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UNION ALL
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SELECT P.Id, P.ParentPhaseId, GEN_ID(GenPhases, 1), T.NewPhaseId
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FROM Phases P, Tree T
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WHERE P.ParentPhaseId = T.OldPhaseId
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)
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SELECT * FROM Tree;
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"""
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act = isql_act('db', test_script)
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expected_stdout = """
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OLDPHASEID OLDPARENTPHASEID NEWPHASEID NEWPARENTPHASEID
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============ ================ ===================== ================
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491 <null> 1 <null>
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494 491 2 1
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497 494 3 2
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495 491 4 1
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498 <null> 5 <null>
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"""
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@pytest.mark.version('>=3')
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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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