SET send_logs_level = 'none';

DROP TABLE IF EXISTS test.alter_compression_codec;

CREATE TABLE test.alter_compression_codec (
    somedate Date CODEC(LZ4),
    id UInt64 CODEC(NONE)
) ENGINE = MergeTree() PARTITION BY somedate ORDER BY id;

INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 1);
INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 2);
SELECT * FROM test.alter_compression_codec ORDER BY id;

ALTER TABLE test.alter_compression_codec ADD COLUMN alter_column String DEFAULT 'default_value' CODEC(ZSTD);
SELECT compression_codec FROM system.columns WHERE database = 'test' AND table = 'alter_compression_codec' AND name = 'alter_column';

INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 3, '3');
INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 4, '4');
SELECT * FROM test.alter_compression_codec ORDER BY id;

ALTER TABLE test.alter_compression_codec MODIFY COLUMN alter_column CODEC(NONE);
SELECT compression_codec FROM system.columns WHERE database = 'test' AND table = 'alter_compression_codec' AND name = 'alter_column';

INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 5, '5');
INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 6, '6');
SELECT * FROM test.alter_compression_codec ORDER BY id;

OPTIMIZE TABLE test.alter_compression_codec FINAL;
SELECT * FROM test.alter_compression_codec ORDER BY id;

ALTER TABLE test.alter_compression_codec MODIFY COLUMN alter_column CODEC(ZSTD, LZ4HC, LZ4, LZ4, NONE);
SELECT compression_codec FROM system.columns WHERE database = 'test' AND table = 'alter_compression_codec' AND name = 'alter_column';

INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 7, '7');
INSERT INTO test.alter_compression_codec VALUES('2018-01-01', 8, '8');
OPTIMIZE TABLE test.alter_compression_codec FINAL;
SELECT * FROM test.alter_compression_codec ORDER BY id;

ALTER TABLE test.alter_compression_codec MODIFY COLUMN alter_column FixedString(100);
SELECT compression_codec FROM system.columns WHERE database = 'test' AND table = 'alter_compression_codec' AND name = 'alter_column';


DROP TABLE IF EXISTS test.alter_compression_codec;

DROP TABLE IF EXISTS test.alter_bad_codec;

CREATE TABLE test.alter_bad_codec (
    somedate Date CODEC(LZ4),
    id UInt64 CODEC(NONE)
) ENGINE = MergeTree() ORDER BY tuple();

ALTER TABLE test.alter_bad_codec ADD COLUMN alter_column DateTime DEFAULT '2019-01-01 00:00:00' CODEC(gbdgkjsdh); -- { serverError 432 }

ALTER TABLE test.alter_bad_codec ADD COLUMN alter_column DateTime DEFAULT '2019-01-01 00:00:00' CODEC(ZSTD(100)); -- { serverError 433 }

DROP TABLE IF EXISTS test.alter_bad_codec;

DROP TABLE IF EXISTS test.large_alter_table;
DROP TABLE IF EXISTS test.store_of_hash;

CREATE TABLE test.large_alter_table (
    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 test.large_alter_table SELECT toDate('2019-01-01'), number, toString(number + rand()) FROM system.numbers LIMIT 300000;

CREATE TABLE test.store_of_hash (hash UInt64) ENGINE = Memory();

INSERT INTO test.store_of_hash SELECT sum(cityHash64(*)) FROM test.large_alter_table;

ALTER TABLE test.large_alter_table MODIFY COLUMN data CODEC(NONE, LZ4, LZ4HC, ZSTD);

OPTIMIZE TABLE test.large_alter_table;

SELECT compression_codec FROM system.columns WHERE database = 'test' AND table = 'large_alter_table' AND name = 'data';

DETACH TABLE test.large_alter_table;
ATTACH TABLE test.large_alter_table;

INSERT INTO test.store_of_hash SELECT sum(cityHash64(*)) FROM test.large_alter_table;

SELECT COUNT(hash) FROM test.store_of_hash;
SELECT COUNT(DISTINCT hash) FROM test.store_of_hash;

DROP TABLE IF EXISTS test.large_alter_table;
DROP TABLE IF EXISTS test.store_of_hash;