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116 lines
3.3 KiB
Python
116 lines
3.3 KiB
Python
import random
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import string
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import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance("node1", with_zookeeper=True)
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node2 = cluster.add_instance("node2", with_zookeeper=True)
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@pytest.fixture(scope="module")
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def start_cluster():
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try:
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cluster.start()
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yield cluster
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finally:
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cluster.shutdown()
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def get_compression_codec_byte(node, table_name, part_name, filename):
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cmd = "tail -c +17 /var/lib/clickhouse/data/default/{}/{}/{}.bin | od -x -N 1 | head -n 1 | awk '{{print $2}}'".format(
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table_name, part_name, filename
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)
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return node.exec_in_container(["bash", "-c", cmd]).strip()
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CODECS_MAPPING = {
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"NONE": "0002",
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"LZ4": "0082",
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"LZ4HC": "0082", # not an error, same byte
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"ZSTD": "0090",
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"Multiple": "0091",
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"Delta": "0092",
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"T64": "0093",
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}
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def test_nested_compression_codec(start_cluster):
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for i, node in enumerate([node1, node2]):
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node.query(
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"""
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CREATE TABLE compression_table (
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key UInt64,
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column_ok Nullable(UInt64) CODEC(Delta, LZ4),
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column_array Array(Array(UInt64)) CODEC(T64, LZ4),
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column_bad LowCardinality(Int64) CODEC(Delta)
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) ENGINE = ReplicatedMergeTree('/t', '{}') ORDER BY tuple() PARTITION BY key
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SETTINGS min_rows_for_wide_part = 0, min_bytes_for_wide_part = 0, replace_long_file_name_to_hash = 0;
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""".format(
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i
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),
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settings={
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"allow_suspicious_codecs": "1",
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"allow_suspicious_low_cardinality_types": "1",
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},
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)
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node1.query("INSERT INTO compression_table VALUES (1, 1, [[77]], 32)")
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node2.query("SYSTEM SYNC REPLICA compression_table", timeout=5)
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node1.query("DETACH TABLE compression_table")
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node2.query("DETACH TABLE compression_table")
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node1.query("ATTACH TABLE compression_table")
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node2.query("ATTACH TABLE compression_table")
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for node in [node1, node2]:
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assert (
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get_compression_codec_byte(
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node, "compression_table", "1_0_0_0", "column_ok"
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)
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== CODECS_MAPPING["Multiple"]
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)
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assert (
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get_compression_codec_byte(
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node, "compression_table", "1_0_0_0", "column_ok.null"
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)
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== CODECS_MAPPING["LZ4"]
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)
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assert (
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get_compression_codec_byte(
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node1, "compression_table", "1_0_0_0", "column_array"
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)
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== CODECS_MAPPING["Multiple"]
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)
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assert (
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get_compression_codec_byte(
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node2, "compression_table", "1_0_0_0", "column_array.size0"
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)
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== CODECS_MAPPING["LZ4"]
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)
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assert (
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get_compression_codec_byte(
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node2, "compression_table", "1_0_0_0", "column_array.size1"
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)
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== CODECS_MAPPING["LZ4"]
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)
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assert (
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get_compression_codec_byte(
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node2, "compression_table", "1_0_0_0", "column_bad.dict"
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)
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== CODECS_MAPPING["Delta"]
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)
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assert (
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get_compression_codec_byte(
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node1, "compression_table", "1_0_0_0", "column_bad"
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)
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== CODECS_MAPPING["NONE"]
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)
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