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104 lines
2.8 KiB
Python
104 lines
2.8 KiB
Python
#coding:utf-8
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"""
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ID: issue-5308
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ISSUE: 5308
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TITLE: Regression: ORDER BY clause on compound index may disable usage of other indices
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DESCRIPTION:
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JIRA: CORE-5020
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FBTEST: bugs.core_5020
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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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recreate table zf(
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id integer not null primary key,
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kont_id integer not null
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);
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recreate table u(
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id integer not null primary key,
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kont_id integer not null
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);
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recreate table k(
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id integer not null primary key
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);
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commit;
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insert into zf (id, kont_id) values ('1', '1');
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insert into zf (id, kont_id) values ('2', '7');
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insert into zf (id, kont_id) values ('3', '3');
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insert into zf (id, kont_id) values ('4', '5');
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insert into zf (id, kont_id) values ('5', '5');
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insert into zf (id, kont_id) values ('6', '1');
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insert into zf (id, kont_id) values ('7', '4');
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insert into zf (id, kont_id) values ('8', '2');
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insert into zf (id, kont_id) values ('9', '9');
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insert into zf (id, kont_id) values ('10', '1');
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insert into k (id) values ('1');
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insert into k (id) values ('2');
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insert into k (id) values ('3');
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insert into k (id) values ('4');
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insert into k (id) values ('5');
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insert into k (id) values ('6');
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insert into k (id) values ('7');
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insert into k (id) values ('8');
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insert into k (id) values ('9');
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insert into k (id) values ('10');
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insert into u (id, kont_id) values ('1', '4');
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insert into u (id, kont_id) values ('2', '6');
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insert into u (id, kont_id) values ('3', '3');
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insert into u (id, kont_id) values ('4', '2');
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insert into u (id, kont_id) values ('5', '5');
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insert into u (id, kont_id) values ('6', '2');
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insert into u (id, kont_id) values ('7', '9');
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insert into u (id, kont_id) values ('8', '2');
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insert into u (id, kont_id) values ('9', '10');
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insert into u (id, kont_id) values ('10', '1');
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commit;
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alter table zf add constraint fk_zf__k
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foreign key(kont_id)
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references k(id)
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using index fk_zf__k
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;
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set statistics index fk_zf__k;
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create index ixa_fk__id__kont_id on zf(id, kont_id);
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commit;
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set planonly;
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select zf.*
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from zf
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where zf.kont_id=5
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order by zf.id, kont_id;
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-- Plan in 3.0.0.32179 (before fix): PLAN (ZF ORDER IXA_FK__ID__KONT_ID)
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-- Fixed in 3.0 since: http://sourceforge.net/p/firebird/code/62570
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-- Checked on 2.5.5.26952 - plans are the same now.
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"""
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act = isql_act('db', test_script)
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expected_stdout = """
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PLAN (ZF ORDER IXA_FK__ID__KONT_ID INDEX (FK_ZF__K))
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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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