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83 lines
2.7 KiB
Python
83 lines
2.7 KiB
Python
#coding:utf-8
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"""
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ID: issue-5402
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ISSUE: 5402
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TITLE: Indices on computed fields are broken after restore (all keys are NULL)
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DESCRIPTION:
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JIRA: CORE-5118
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FBTEST: bugs.core_5118
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NOTES:
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[12.09.2024] pzotov
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Replaced test query so that it does not use index navigation ('plan order') but still checks indexed access.
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Three separate queries with 'PLAN ... INDEX' are used instead of one with 'where <comp_field> IN <literals_list>'.
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This is because of optimizer changed in 5.x and issues plan with only *one* occurrence of 'INDEX' for such cases.
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See: https://github.com/FirebirdSQL/firebird/pull/7707 - "Better processing and optimization if IN <list>".
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Commit: https://github.com/FirebirdSQL/firebird/commit/0493422c9f729e27be0112ab60f77e753fabcb5b, 04-sep-2023.
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Requested by dimitr, letters with subj 'core_5118_test', since 11.09.2024 17:26.
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Checked on 6.0.0.452, 5.0.2.1493, 4.0.5.3136, 3.0.13.33789.
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"""
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import pytest
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from io import BytesIO
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from firebird.qa import *
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from firebird.driver import SrvRestoreFlag
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init_script = """
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recreate table test (
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id int,
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x varchar(10),
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y varchar(10) ,
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concat_text computed by (x || ' ' || y)
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);
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commit;
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insert into test(id, x, y) values (1, 'nom1', 'prenom1');
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insert into test(id, x, y) values (2, 'nom2', 'prenom2');
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insert into test(id, x, y) values (3, 'nom3', 'prenom3');
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commit;
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create index test_concat_text on test computed by ( concat_text );
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commit;
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"""
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db = db_factory(init = init_script)
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act = python_act('db', substitutions = [ ('[ \t]+',' ') ])
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expected_stdout = """
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PLAN (TEST INDEX (TEST_CONCAT_TEXT))
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CONCAT_TEXT nom1 prenom1
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Records affected: 1
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PLAN (TEST INDEX (TEST_CONCAT_TEXT))
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CONCAT_TEXT nom2 prenom2
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Records affected: 1
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PLAN (TEST INDEX (TEST_CONCAT_TEXT))
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CONCAT_TEXT nom3 prenom3
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Records affected: 1
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"""
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test_sql = """
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set list on;
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set plan on;
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set count on;
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select concat_text from test where concat_text = 'nom1 prenom1';
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select concat_text from test where concat_text = 'nom2 prenom2';
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select concat_text from test where concat_text = 'nom3 prenom3';
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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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with act.connect_server() as srv:
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backup = BytesIO()
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srv.database.local_backup(database = act.db.db_path, backup_stream = backup)
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backup.seek(0)
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srv.database.local_restore(database = act.db.db_path, backup_stream=backup, flags = SrvRestoreFlag.REPLACE)
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act.expected_stdout = expected_stdout
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act.isql(switches=['-q'], input = test_sql, combine_output = True)
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assert act.clean_stdout == act.clean_expected_stdout
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