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107 lines
3.0 KiB
Python
107 lines
3.0 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_4702
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# title: Regression: Join order in v3 is less optimal than in v2.x
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# decription:
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# tracker_id: CORE-4702
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# min_versions: ['3.0']
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# versions: 3.0
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# qmid: None
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 3.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """
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recreate table trial_line (
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code_trial_line integer not null,
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code_trial integer not null
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);
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recreate table trial (
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code_trial integer not null,
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code_prize integer not null,
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bydate date
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);
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recreate table prize (
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code_prize integer not null,
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name varchar(70) not null
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);
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commit;
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insert into prize(code_prize, name)
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with recursive t (n) as (
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select 1 from rdb$database
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union all
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select n+1 from t where n < 1000
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)
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select n+8000, '' from t;
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commit;
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insert into trial(code_trial, code_prize, bydate)
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with recursive t (n) as (
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select 1 from rdb$database
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union all
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select n+1 from t where n < 1000
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)
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select t1.n + (t2.n-1)*1000, mod(t1.n, 20)+8001, dateadd(t1.n day to date '01.01.2000')
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from t t1, t t2
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where t1.n + (t2.n-1)*1000 < 100000;
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commit;
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insert into trial_line(code_trial_line, code_trial)
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with recursive t (n) as (
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select 1 from rdb$database
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union all
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select n+1 from t where n < 1000
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)
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select t1.n + (t2.n-1)*1000, mod(t1.n + (t2.n-1)*1000, 99998)+1
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from t t1, t t2
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where t1.n + (t2.n-1)*1000 < 150000;
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commit;
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alter table trial add constraint pk_trial primary key (code_trial);
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alter table prize add constraint pk_prize primary key (code_prize);
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alter table trial_line add constraint pk_trial_line primary key (code_trial_line);
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alter table trial_line add constraint fk_trial_line_trial foreign key (code_trial) references trial (code_trial);
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alter table trial add constraint fk_trial_prize foreign key (code_prize) references prize (code_prize);
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create index idx_bydate on trial(bydate);
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commit;
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"""
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db_1 = db_factory(page_size=4096, sql_dialect=3, init=init_script_1)
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test_script_1 = """
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set planonly;
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select count(*)
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from
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trial
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join prize on prize.code_prize = trial.code_prize
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join trial_line on trial_line.code_trial = trial.code_trial
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where trial.bydate between date '01.01.2000' and date '31.12.2000';
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-- Confirmed ineffective plan in WI-T3.0.0.31374 Firebird 3.0 Beta 1:
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-- PLAN JOIN (TRIAL INDEX (IDX_BYDATE), TRIAL_LINE INDEX (FK_TRIAL_LINE_TRIAL), PRIZE INDEX (PK_PRIZE))
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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PLAN JOIN (TRIAL INDEX (IDX_BYDATE), PRIZE INDEX (PK_PRIZE), TRIAL_LINE INDEX (FK_TRIAL_LINE_TRIAL))
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"""
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@pytest.mark.version('>=3.0')
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def test_1(act_1: Action):
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act_1.expected_stdout = expected_stdout_1
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act_1.execute()
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assert act_1.clean_expected_stdout == act_1.clean_stdout
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