mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-21 17:20:50 +00:00
22 lines
485 B
MySQL
22 lines
485 B
MySQL
|
drop table if exists t;
|
||
|
|
create table t (a Int8, val Float32) engine = Memory();
|
||
|
|
insert into t values (1,1.1), (1,1.2), (2,2.1);
|
||
|
|
|
||
|
|
SET enable_optimize_predicate_expression = 0;
|
||
|
|
|
||
|
|
SELECT * FROM (
|
||
|
|
SELECT a, t1.val as val1, t2.val as val2
|
||
|
|
FROM t t1
|
||
|
|
ANY LEFT JOIN t t2 USING a
|
||
|
|
) ORDER BY val1;
|
||
|
|
|
||
|
|
SET enable_optimize_predicate_expression = 1;
|
||
|
|
|
||
|
|
SELECT * FROM (
|
||
|
|
SELECT a, t1.val as val1, t2.val as val2
|
||
|
|
FROM t t1
|
||
|
|
ANY LEFT JOIN t t2 USING a
|
||
|
|
) ORDER BY val1;
|
||
|
|
|
||
|
|
drop table t;
|