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Added a test for multiple JOINs from Denny Crane #4571

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Alexey Milovidov 2019-03-14 05:53:15 +03:00
parent 1454479713
commit 3e8d9ec450
2 changed files with 42 additions and 0 deletions
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2
dbms/tests/queries/0_stateless/00917_multiple_joins_denny_crane.reference Normal file
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CAT 2
CAT 2

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dbms/tests/queries/0_stateless/00917_multiple_joins_denny_crane.sql Normal file
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USE test;
DROP TABLE IF EXISTS ANIMAL;
CREATE TABLE ANIMAL ( ANIMAL Nullable(String) ) engine = TinyLog;
INSERT INTO ANIMAL (ANIMAL) VALUES ('CAT'), ('FISH'), ('DOG'), ('HORSE'), ('BIRD');
set enable_optimize_predicate_expression = 0;
select * from (
select x.b x, count(distinct x.c) ANIMAL
from (
select a.ANIMAL a, 'CAT' b, c.ANIMAL c, d.ANIMAL d
from ANIMAL a join ANIMAL b on a.ANIMAL = b.ANIMAL
left outer join ANIMAL c on (b.ANIMAL = c.ANIMAL)
right outer join (select * from ANIMAL union all select * from ANIMAL
union all select * from ANIMAL) d on (a.ANIMAL = d.ANIMAL)
where d.ANIMAL <> 'CAT' and c.ANIMAL <>'DOG' and b.ANIMAL <> 'FISH') as x
where x.b >= 'CAT'
group by x.b
having ANIMAL >= 0) ANIMAL
where ANIMAL.ANIMAL >= 0;
set enable_optimize_predicate_expression = 1;
select * from (
select x.b x, count(distinct x.c) ANIMAL
from (
select a.ANIMAL a, 'CAT' b, c.ANIMAL c, d.ANIMAL d
from ANIMAL a join ANIMAL b on a.ANIMAL = b.ANIMAL
left outer join ANIMAL c on (b.ANIMAL = c.ANIMAL)
right outer join (select * from ANIMAL union all select * from ANIMAL
union all select * from ANIMAL) d on (a.ANIMAL = d.ANIMAL)
where d.ANIMAL <> 'CAT' and c.ANIMAL <>'DOG' and b.ANIMAL <> 'FISH') as x
where x.b >= 'CAT'
group by x.b
having ANIMAL >= 0) ANIMAL
where ANIMAL.ANIMAL >= 0;
DROP TABLE ANIMAL;