mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 21:51:57 +00:00
19 lines
728 B
SQL
19 lines
728 B
SQL
DROP TABLE IF EXISTS numbers1;
|
|
DROP TABLE IF EXISTS numbers2;
|
|
|
|
CREATE TABLE numbers1 ENGINE = Memory AS SELECT number FROM numbers(1000);
|
|
CREATE TABLE numbers2 ENGINE = Memory AS SELECT number FROM numbers(1000);
|
|
|
|
SELECT * FROM merge(currentDatabase(), '^numbers\\d+$') SAMPLE 0.1; -- { serverError 141 }
|
|
|
|
DROP TABLE numbers1;
|
|
DROP TABLE numbers2;
|
|
|
|
CREATE TABLE numbers1 ENGINE = MergeTree ORDER BY intHash32(number) SAMPLE BY intHash32(number) AS SELECT number FROM numbers(1000);
|
|
CREATE TABLE numbers2 ENGINE = MergeTree ORDER BY intHash32(number) SAMPLE BY intHash32(number) AS SELECT number FROM numbers(1000);
|
|
|
|
SELECT * FROM merge(currentDatabase(), '^numbers\\d+$') SAMPLE 0.01;
|
|
|
|
DROP TABLE numbers1;
|
|
DROP TABLE numbers2;
|