mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-14 18:32:29 +00:00
90 lines
3.8 KiB
SQL
90 lines
3.8 KiB
SQL
SET send_logs_level = 'fatal';
|
|
|
|
DROP TABLE IF EXISTS alter_compression_codec;
|
|
|
|
CREATE TABLE alter_compression_codec (
|
|
somedate Date CODEC(LZ4),
|
|
id UInt64 CODEC(NONE)
|
|
) ENGINE = MergeTree() PARTITION BY somedate ORDER BY id;
|
|
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 1);
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 2);
|
|
SELECT * FROM alter_compression_codec ORDER BY id;
|
|
|
|
ALTER TABLE alter_compression_codec ADD COLUMN alter_column String DEFAULT 'default_value' CODEC(ZSTD);
|
|
SELECT compression_codec FROM system.columns WHERE database = currentDatabase() AND table = 'alter_compression_codec' AND name = 'alter_column';
|
|
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 3, '3');
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 4, '4');
|
|
SELECT * FROM alter_compression_codec ORDER BY id;
|
|
|
|
ALTER TABLE alter_compression_codec MODIFY COLUMN alter_column CODEC(NONE);
|
|
SELECT compression_codec FROM system.columns WHERE database = currentDatabase() AND table = 'alter_compression_codec' AND name = 'alter_column';
|
|
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 5, '5');
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 6, '6');
|
|
SELECT * FROM alter_compression_codec ORDER BY id;
|
|
|
|
OPTIMIZE TABLE alter_compression_codec FINAL;
|
|
SELECT * FROM alter_compression_codec ORDER BY id;
|
|
|
|
SET allow_suspicious_codecs = 1;
|
|
ALTER TABLE alter_compression_codec MODIFY COLUMN alter_column CODEC(ZSTD, LZ4HC, LZ4, LZ4, NONE);
|
|
SELECT compression_codec FROM system.columns WHERE database = currentDatabase() AND table = 'alter_compression_codec' AND name = 'alter_column';
|
|
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 7, '7');
|
|
INSERT INTO alter_compression_codec VALUES('2018-01-01', 8, '8');
|
|
OPTIMIZE TABLE alter_compression_codec FINAL;
|
|
SELECT * FROM alter_compression_codec ORDER BY id;
|
|
|
|
ALTER TABLE alter_compression_codec MODIFY COLUMN alter_column FixedString(100);
|
|
SELECT compression_codec FROM system.columns WHERE database = currentDatabase() AND table = 'alter_compression_codec' AND name = 'alter_column';
|
|
|
|
|
|
DROP TABLE IF EXISTS alter_compression_codec;
|
|
|
|
DROP TABLE IF EXISTS alter_bad_codec;
|
|
|
|
CREATE TABLE alter_bad_codec (
|
|
somedate Date CODEC(LZ4),
|
|
id UInt64 CODEC(NONE)
|
|
) ENGINE = MergeTree() ORDER BY tuple();
|
|
|
|
ALTER TABLE alter_bad_codec ADD COLUMN alter_column DateTime DEFAULT '2019-01-01 00:00:00' CODEC(gbdgkjsdh); -- { serverError 432 }
|
|
|
|
ALTER TABLE alter_bad_codec ADD COLUMN alter_column DateTime DEFAULT '2019-01-01 00:00:00' CODEC(ZSTD(100)); -- { serverError 433 }
|
|
|
|
DROP TABLE IF EXISTS alter_bad_codec;
|
|
|
|
DROP TABLE IF EXISTS large_alter_table_00804;
|
|
DROP TABLE IF EXISTS store_of_hash_00804;
|
|
|
|
CREATE TABLE large_alter_table_00804 (
|
|
somedate Date CODEC(ZSTD, ZSTD, ZSTD(12), LZ4HC(12)),
|
|
id UInt64 CODEC(LZ4, ZSTD, NONE, LZ4HC),
|
|
data String CODEC(ZSTD(2), LZ4HC, NONE, LZ4, LZ4)
|
|
) ENGINE = MergeTree() PARTITION BY somedate ORDER BY id SETTINGS index_granularity = 2;
|
|
|
|
INSERT INTO large_alter_table_00804 SELECT toDate('2019-01-01'), number, toString(number + rand()) FROM system.numbers LIMIT 300000;
|
|
|
|
CREATE TABLE store_of_hash_00804 (hash UInt64) ENGINE = Memory();
|
|
|
|
INSERT INTO store_of_hash_00804 SELECT sum(cityHash64(*)) FROM large_alter_table_00804;
|
|
|
|
ALTER TABLE large_alter_table_00804 MODIFY COLUMN data CODEC(NONE, LZ4, LZ4HC, ZSTD);
|
|
|
|
OPTIMIZE TABLE large_alter_table_00804;
|
|
|
|
SELECT compression_codec FROM system.columns WHERE database = currentDatabase() AND table = 'large_alter_table_00804' AND name = 'data';
|
|
|
|
DETACH TABLE large_alter_table_00804;
|
|
ATTACH TABLE large_alter_table_00804;
|
|
|
|
INSERT INTO store_of_hash_00804 SELECT sum(cityHash64(*)) FROM large_alter_table_00804;
|
|
|
|
SELECT COUNT(hash) FROM store_of_hash_00804;
|
|
SELECT COUNT(DISTINCT hash) FROM store_of_hash_00804;
|
|
|
|
DROP TABLE IF EXISTS large_alter_table_00804;
|
|
DROP TABLE IF EXISTS store_of_hash_00804;
|