mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-11 01:54:55 +00:00
34 lines
704 B
SQL
34 lines
704 B
SQL
DROP TABLE IF EXISTS test.src;
|
|
DROP TABLE IF EXISTS test.dst;
|
|
DROP TABLE IF EXISTS test.mv;
|
|
|
|
CREATE TABLE test.src (x UInt8) ENGINE = Null;
|
|
CREATE TABLE test.dst (x UInt8) ENGINE = Memory;
|
|
|
|
USE test;
|
|
|
|
CREATE MATERIALIZED VIEW mv TO dst AS SELECT * FROM src;
|
|
|
|
INSERT INTO src VALUES (1), (2);
|
|
SELECT * FROM mv ORDER BY x;
|
|
|
|
-- Detach MV and see if the data is still readable
|
|
DETACH TABLE mv;
|
|
SELECT * FROM dst ORDER BY x;
|
|
|
|
USE default;
|
|
|
|
-- Reattach MV (shortcut)
|
|
ATTACH TABLE test.mv;
|
|
|
|
INSERT INTO test.src VALUES (3);
|
|
|
|
SELECT * FROM test.mv ORDER BY x;
|
|
|
|
-- Drop the MV and see if the data is still readable
|
|
DROP TABLE test.mv;
|
|
SELECT * FROM test.dst ORDER BY x;
|
|
|
|
DROP TABLE test.src;
|
|
DROP TABLE test.dst;
|