Nikita Fomichev 2024-04-03 10:12:55 +02:00
parent a401d328fd
commit e19c635edd
2 changed files with 25 additions and 0 deletions

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-- https://github.com/ClickHouse/ClickHouse/issues/4567
DROP TABLE IF EXISTS fact;
DROP TABLE IF EXISTS animals;
DROP TABLE IF EXISTS colors;
create table fact(id Int64, animal_key Int64, color_key Int64) Engine = MergeTree order by tuple();
insert into fact values (1,1,1),(2,2,2);
create table animals(animal_key UInt64, animal_name String) Engine = MergeTree order by tuple();
insert into animals values (0, 'unknown');
create table colors(color_key UInt64, color_name String) Engine = MergeTree order by tuple();
insert into colors values (0, 'unknown');
select id, animal_name, a.animal_key, color_name, color_key
from fact a
left join (select toInt64(animal_key) animal_key, animal_name from animals) b on (a.animal_key = b.animal_key)
left join (select toInt64(color_key) color_key, color_name from colors) c on (a.color_key = c.color_key); -- { serverError AMBIGUOUS_IDENTIFIER }
select id, animal_name, animal_key, color_name, color_key
from fact a
left join (select toInt64(animal_key) animal_key, animal_name from animals) b on (a.animal_key = b.animal_key)
left join (select toInt64(color_key) color_key, color_name from colors) c on (a.color_key = c.color_key); -- { serverError AMBIGUOUS_IDENTIFIER }