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88 lines
2.8 KiB
Python
88 lines
2.8 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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@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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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 statistic_{col}.stat".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"stat file ls in {part_path} for column {column_name}, shows {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 test_single_node(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 STATISTIC(tdigest), b Int64 STATISTIC(tdigest), c Int64 STATISTIC(tdigest))
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ENGINE = MergeTree() ORDER BY a;
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"""
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)
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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 STATISTIC a type tdigest")
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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 STATISTIC b, c type tdigest")
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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 STATISTIC b, c type tdigest")
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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 ADD STATISTIC a type tdigest")
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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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