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https://github.com/ClickHouse/ClickHouse.git
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184 lines
6.7 KiB
Python
184 lines
6.7 KiB
Python
import pytest
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import logging
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1", user_configs=["config/config.xml"], with_zookeeper=True
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)
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node2 = cluster.add_instance(
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"node2", user_configs=["config/config.xml"], with_zookeeper=True
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)
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@pytest.fixture(scope="module")
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def started_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 check_stat_file_on_disk(node, table, part_name, column_name, exist):
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part_path = node.query(
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"SELECT path FROM system.parts WHERE table = '{}' and name = '{}'".format(
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table, part_name
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)
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).strip()
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assert len(part_path) != 0
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output = node.exec_in_container(
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[
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"bash",
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"-c",
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"find {p} -type f -name statistics_{col}.stats".format(
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p=part_path, col=column_name
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),
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],
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privileged=True,
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)
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logging.debug(
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f"Checking stats file in {part_path} for column {column_name}, got {output}"
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)
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if exist:
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assert len(output) != 0
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else:
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assert len(output) == 0
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def run_test_single_node(started_cluster):
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node1.query("INSERT INTO test_stat VALUES (1,2,3), (4,5,6)")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0", "a", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0", "b", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0", "c", True)
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node1.query("ALTER TABLE test_stat DROP STATISTICS a")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_2", "a", False)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_2", "b", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_2", "c", True)
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node1.query("ALTER TABLE test_stat CLEAR STATISTICS b, c")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_3", "a", False)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_3", "b", False)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_3", "c", False)
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node1.query("ALTER TABLE test_stat MATERIALIZE STATISTICS b, c")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_4", "a", False)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_4", "b", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_4", "c", True)
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node1.query("ALTER TABLE test_stat ADD STATISTICS a type tdigest")
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node1.query("ALTER TABLE test_stat MATERIALIZE STATISTICS a")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_5", "a", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_5", "b", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_5", "c", True)
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node1.query("ALTER TABLE test_stat DROP COLUMN c")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_6", "a", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_6", "b", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_6", "c", False)
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node1.query("ALTER TABLE test_stat RENAME COLUMN b TO c")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_7", "a", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_7", "b", False)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_7", "c", True)
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node1.query("ALTER TABLE test_stat RENAME COLUMN c TO b")
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_8", "a", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_8", "b", True)
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check_stat_file_on_disk(node1, "test_stat", "all_1_1_0_8", "c", False)
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def test_single_node_wide(started_cluster):
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node1.query("DROP TABLE IF EXISTS test_stat")
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node1.query(
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"""
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CREATE TABLE test_stat(a Int64 STATISTICS(tdigest), b Int64 STATISTICS(tdigest), c Int64 STATISTICS(tdigest))
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ENGINE = MergeTree() ORDER BY a
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SETTINGS min_bytes_for_wide_part = 0;
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"""
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)
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run_test_single_node(started_cluster)
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def test_single_node_normal(started_cluster):
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node1.query("DROP TABLE IF EXISTS test_stat")
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node1.query(
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"""
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CREATE TABLE test_stat(a Int64 STATISTICS(tdigest), b Int64 STATISTICS(tdigest), c Int64 STATISTICS(tdigest))
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ENGINE = MergeTree() ORDER BY a;
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"""
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)
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run_test_single_node(started_cluster)
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def test_replicated_table_ddl(started_cluster):
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node1.query("DROP TABLE IF EXISTS test_stat")
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node2.query("DROP TABLE IF EXISTS test_stat")
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node1.query(
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"""
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CREATE TABLE test_stat(a Int64 STATISTICS(tdigest, uniq), b Int64 STATISTICS(tdigest, uniq), c Int64 STATISTICS(tdigest))
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ENGINE = ReplicatedMergeTree('/clickhouse/test/statistics', '1') ORDER BY a;
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"""
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)
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node2.query(
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"""
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CREATE TABLE test_stat(a Int64 STATISTICS(tdigest, uniq), b Int64 STATISTICS(tdigest, uniq), c Int64 STATISTICS(tdigest))
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ENGINE = ReplicatedMergeTree('/clickhouse/test/statistics', '2') ORDER BY a;
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"""
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)
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node1.query(
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"ALTER TABLE test_stat MODIFY STATISTICS c TYPE tdigest, uniq",
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settings={"alter_sync": "2"},
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)
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node1.query("ALTER TABLE test_stat DROP STATISTICS b", settings={"alter_sync": "2"})
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assert (
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node2.query("SHOW CREATE TABLE test_stat")
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== "CREATE TABLE default.test_stat\\n(\\n `a` Int64 STATISTICS(tdigest, uniq),\\n `b` Int64,\\n `c` Int64 STATISTICS(tdigest, uniq)\\n)\\nENGINE = ReplicatedMergeTree(\\'/clickhouse/test/statistics\\', \\'2\\')\\nORDER BY a\\nSETTINGS index_granularity = 8192\n"
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)
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node2.query("insert into test_stat values(1,2,3), (2,3,4)")
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0", "a", True)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0", "c", True)
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node1.query(
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"ALTER TABLE test_stat RENAME COLUMN c TO d", settings={"alter_sync": "2"}
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)
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assert node2.query("select sum(a), sum(d) from test_stat") == "3\t7\n"
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_1", "a", True)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_1", "c", False)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_1", "d", True)
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node1.query(
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"ALTER TABLE test_stat CLEAR STATISTICS d", settings={"alter_sync": "2"}
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)
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node1.query(
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"ALTER TABLE test_stat ADD STATISTICS b type tdigest",
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settings={"alter_sync": "2"},
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)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_2", "a", True)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_2", "b", False)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_2", "d", False)
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node1.query(
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"ALTER TABLE test_stat MATERIALIZE STATISTICS b", settings={"alter_sync": "2"}
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)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_3", "a", True)
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check_stat_file_on_disk(node2, "test_stat", "all_0_0_0_3", "b", True)
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