mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-19 06:50:50 +00:00
43 lines
1.4 KiB
MySQL
43 lines
1.4 KiB
MySQL
|
DROP TABLE IF EXISTS test.fetches_r1;
|
||
|
|
DROP TABLE IF EXISTS test.fetches_r2;
|
||
|
|
|
||
|
|
CREATE TABLE test.fetches_r1(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/fetches', 'r1') ORDER BY x;
|
||
|
|
CREATE TABLE test.fetches_r2(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/fetches', 'r2') ORDER BY x
|
||
|
|
SETTINGS prefer_fetch_merged_part_time_threshold=0,
|
||
|
|
prefer_fetch_merged_part_size_threshold=0;
|
||
|
|
|
||
|
|
INSERT INTO test.fetches_r1 VALUES (1);
|
||
|
|
INSERT INTO test.fetches_r1 VALUES (2);
|
||
|
|
INSERT INTO test.fetches_r1 VALUES (3);
|
||
|
|
|
||
|
|
SYSTEM SYNC REPLICA test.fetches_r2;
|
||
|
|
|
||
|
|
DETACH TABLE test.fetches_r2;
|
||
|
|
|
||
|
|
SET replication_alter_partitions_sync=0;
|
||
|
|
OPTIMIZE TABLE test.fetches_r1 PARTITION tuple() FINAL;
|
||
|
|
SYSTEM SYNC REPLICA test.fetches_r1;
|
||
|
|
|
||
|
|
-- After attach replica r2 should fetch the merged part from r1.
|
||
|
|
ATTACH TABLE test.fetches_r2;
|
||
|
|
SYSTEM SYNC REPLICA test.fetches_r2;
|
||
|
|
|
||
|
|
SELECT '*** Check data after fetch of merged part ***';
|
||
|
|
SELECT _part, * FROM test.fetches_r2 ORDER BY x;
|
||
|
|
|
||
|
|
DETACH TABLE test.fetches_r2;
|
||
|
|
|
||
|
|
-- Add mutation that doesn't change data.
|
||
|
|
ALTER TABLE test.fetches_r1 DELETE WHERE x = 0;
|
||
|
|
SYSTEM SYNC REPLICA test.fetches_r1;
|
||
|
|
|
||
|
|
-- After attach replica r2 should compare checksums for mutated part and clone the local part.
|
||
|
|
ATTACH TABLE test.fetches_r2;
|
||
|
|
SYSTEM SYNC REPLICA test.fetches_r2;
|
||
|
|
|
||
|
|
SELECT '*** Check data after fetch/clone of mutated part ***';
|
||
|
|
SELECT _part, * FROM test.fetches_r2 ORDER BY x;
|
||
|
|
|
||
|
|
DROP TABLE test.fetches_r1;
|
||
|
|
DROP TABLE test.fetches_r2;
|