mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-20 05:05:38 +00:00
22 lines
584 B
MySQL
22 lines
584 B
MySQL
|
DROP TABLE IF EXISTS t1;
|
||
|
DROP TABLE IF EXISTS t2;
|
||
|
|
||
|
CREATE TABLE t1 ( id UInt32, attr UInt32 ) ENGINE = MergeTree ORDER BY id
|
||
|
SETTINGS ratio_of_defaults_for_sparse_serialization = 0.1;
|
||
|
|
||
|
INSERT INTO t1 VALUES (0, 0);
|
||
|
|
||
|
CREATE TABLE t2 ( id UInt32, attr UInt32 ) ENGINE = MergeTree ORDER BY id
|
||
|
SETTINGS ratio_of_defaults_for_sparse_serialization = 0.1;
|
||
|
|
||
|
INSERT INTO t2 VALUES (0, 0);
|
||
|
|
||
|
SELECT * FROM t1 JOIN t2 ON t1.id = t2.id AND t1.attr != 0;
|
||
|
|
||
|
INSERT INTO t1 VALUES (0, 1);
|
||
|
|
||
|
SELECT * FROM t1 JOIN t2 ON t1.id = t2.id AND t1.attr != 0;
|
||
|
|
||
|
DROP TABLE IF EXISTS t1;
|
||
|
DROP TABLE IF EXISTS t2;
|