mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 16:42:05 +00:00
41 lines
1.2 KiB
SQL
41 lines
1.2 KiB
SQL
DROP TABLE IF EXISTS file;
|
|
CREATE TABLE file (x UInt64) ENGINE = File(TSV, 'data1.tsv.br');
|
|
TRUNCATE TABLE file;
|
|
|
|
INSERT INTO file SELECT * FROM numbers(1000000);
|
|
SELECT count(), max(x) FROM file;
|
|
|
|
DROP TABLE file;
|
|
|
|
CREATE TABLE file (x UInt64) ENGINE = File(TSV, 'data2.tsv.gz');
|
|
TRUNCATE TABLE file;
|
|
|
|
INSERT INTO file SELECT * FROM numbers(1000000);
|
|
SELECT count(), max(x) FROM file;
|
|
|
|
DROP TABLE file;
|
|
|
|
CREATE TABLE file (x UInt64) ENGINE = File(TSV, 'data3.tsv.xz');
|
|
TRUNCATE TABLE file;
|
|
|
|
INSERT INTO file SELECT * FROM numbers(1000000);
|
|
SELECT count(), max(x) FROM file;
|
|
|
|
DROP TABLE file;
|
|
|
|
CREATE TABLE file (x UInt64) ENGINE = File(TSV, 'data4.tsv.zst');
|
|
TRUNCATE TABLE file;
|
|
|
|
INSERT INTO file SELECT * FROM numbers(1000000);
|
|
SELECT count(), max(x) FROM file;
|
|
|
|
DROP TABLE file;
|
|
|
|
SELECT count(), max(x) FROM file('data{1,2,3,4}.tsv.{gz,br,xz,zst}', TSV, 'x UInt64');
|
|
|
|
-- check that they are compressed
|
|
SELECT count() < 1000000, max(x) FROM file('data1.tsv.br', RowBinary, 'x UInt8', 'none');
|
|
SELECT count() < 3000000, max(x) FROM file('data2.tsv.gz', RowBinary, 'x UInt8', 'none');
|
|
SELECT count() < 1000000, max(x) FROM file('data3.tsv.xz', RowBinary, 'x UInt8', 'none');
|
|
SELECT count() < 1000000, max(x) FROM file('data4.tsv.zst', RowBinary, 'x UInt8', 'none');
|