thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-10 01:25:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add compression ratio tests for Float64, UInt64 and String

Browse Source
This commit is contained in:
alesapin 2019-01-15 19:19:20 +03:00
parent 8cd1e8c21d
commit 8d2f0e0cda
2 changed files with 92 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
dbms/tests/queries/0_stateless/00804_test_delta_codec_compression.reference Normal file
View File

@ -0,0 +1,3 @@
91
46
33

89
dbms/tests/queries/0_stateless/00804_test_delta_codec_compression.sql Normal file
View File

@ -0,0 +1,89 @@
SET send_logs_level = 'none';
DROP TABLE IF EXISTS test.delta_codec_synthetic;
DROP TABLE IF EXISTS test.default_codec_synthetic;
CREATE TABLE test.delta_codec_synthetic
(
id UInt64 Codec(Delta, ZSTD)
) ENGINE MergeTree() ORDER BY tuple();
CREATE TABLE test.default_codec_synthetic
(
id UInt64 Codec(ZSTD)
) ENGINE MergeTree() ORDER BY tuple();
INSERT INTO test.delta_codec_synthetic SELECT number FROM system.numbers LIMIT 5000000;
INSERT INTO test.default_codec_synthetic SELECT number FROM system.numbers LIMIT 5000000;
OPTIMIZE TABLE test.delta_codec_synthetic FINAL;
OPTIMIZE TABLE test.default_codec_synthetic FINAL;
SELECT
floor(big_size / small_size) AS ratio
FROM
(SELECT 1 AS key, sum(bytes_on_disk) AS small_size FROM system.parts WHERE database = 'test' and table = 'delta_codec_synthetic')
INNER JOIN
(SELECT 1 AS key, sum(bytes_on_disk) as big_size FROM system.parts WHERE database = 'test' and table = 'default_codec_synthetic') USING(key);
DROP TABLE IF EXISTS test.delta_codec_synthetic;
DROP TABLE IF EXISTS test.default_codec_synthetic;
DROP TABLE IF EXISTS test.delta_codec_float;
DROP TABLE IF EXISTS test.default_codec_float;
CREATE TABLE test.delta_codec_float
(
id Float64 Codec(Delta, LZ4HC)
) ENGINE MergeTree() ORDER BY tuple();
CREATE TABLE test.default_codec_float
(
id Float64 Codec(LZ4HC)
) ENGINE MergeTree() ORDER BY tuple();
INSERT INTO test.delta_codec_float SELECT number FROM numbers(1547510400, 500000) WHERE number % 3 == 0 OR number % 5 == 0 OR number % 7 == 0 OR number % 11 == 0;
INSERT INTO test.default_codec_float SELECT * from test.delta_codec_float;
OPTIMIZE TABLE test.delta_codec_float FINAL;
OPTIMIZE TABLE test.default_codec_float FINAL;
SELECT
floor(big_size / small_size) as ratio
FROM
(SELECT 1 AS key, sum(bytes_on_disk) AS small_size FROM system.parts WHERE database = 'test' and table = 'delta_codec_float')
INNER JOIN
(SELECT 1 AS key, sum(bytes_on_disk) as big_size FROM system.parts WHERE database = 'test' and table = 'default_codec_float') USING(key);
DROP TABLE IF EXISTS test.delta_codec_float;
DROP TABLE IF EXISTS test.default_codec_float;
DROP TABLE IF EXISTS test.delta_codec_string;
DROP TABLE IF EXISTS test.default_codec_string;
CREATE TABLE test.delta_codec_string
(
id Float64 Codec(Delta, LZ4)
) ENGINE MergeTree() ORDER BY tuple();
CREATE TABLE test.default_codec_string
(
id Float64 Codec(LZ4)
) ENGINE MergeTree() ORDER BY tuple();
INSERT INTO test.delta_codec_string SELECT concat(toString(number), toString(number % 100)) FROM numbers(1547510400, 500000);
INSERT INTO test.default_codec_string SELECT * from test.delta_codec_string;
OPTIMIZE TABLE test.delta_codec_string FINAL;
OPTIMIZE TABLE test.default_codec_string FINAL;
SELECT
floor(big_size / small_size) as ratio
FROM
(SELECT 1 AS key, sum(bytes_on_disk) AS small_size FROM system.parts WHERE database = 'test' and table = 'delta_codec_string')
INNER JOIN
(SELECT 1 AS key, sum(bytes_on_disk) as big_size FROM system.parts WHERE database = 'test' and table = 'default_codec_string') USING(key);
DROP TABLE IF EXISTS test.delta_codec_string;
DROP TABLE IF EXISTS test.default_codec_string;