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https://github.com/ClickHouse/ClickHouse.git
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77 lines
3.4 KiB
Python
77 lines
3.4 KiB
Python
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import pytest
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import os
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import assert_eq_with_retry
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SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
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DICTIONARY_FILES = ['configs/dictionaries/dep_x.xml', 'configs/dictionaries/dep_y.xml', 'configs/dictionaries/dep_z.xml']
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cluster = ClickHouseCluster(__file__, base_configs_dir=os.path.join(SCRIPT_DIR, 'configs'))
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instance = cluster.add_instance('instance', main_configs=DICTIONARY_FILES)
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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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instance.query('''
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CREATE DATABASE IF NOT EXISTS dict ENGINE=Dictionary;
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CREATE DATABASE IF NOT EXISTS test;
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DROP TABLE IF EXISTS test.elements;
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CREATE TABLE test.elements (id UInt64, a String, b Int32, c Float64) ENGINE=Log;
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INSERT INTO test.elements VALUES (0, 'water', 10, 1), (1, 'air', 40, 0.01), (2, 'earth', 100, 1.7);
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''')
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yield cluster
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finally:
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cluster.shutdown()
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def get_status(dictionary_name):
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return instance.query("SELECT status FROM system.dictionaries WHERE name='" + dictionary_name + "'").rstrip("\n")
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def test_get_data(started_cluster):
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query = instance.query
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# dictionaries_lazy_load == false, so these dictionary are not loaded.
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assert get_status('dep_x') == 'NOT_LOADED'
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assert get_status('dep_y') == 'NOT_LOADED'
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assert get_status('dep_z') == 'NOT_LOADED'
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# Dictionary 'dep_x' depends on 'dep_z', which depends on 'dep_y'.
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# So they all should be loaded at once.
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assert query("SELECT dictGetString('dep_x', 'a', toUInt64(1))") == "air\n"
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assert get_status('dep_x') == 'LOADED'
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assert get_status('dep_y') == 'LOADED'
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assert get_status('dep_z') == 'LOADED'
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# Other dictionaries should work too.
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assert query("SELECT dictGetString('dep_y', 'a', toUInt64(1))") == "air\n"
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assert query("SELECT dictGetString('dep_z', 'a', toUInt64(1))") == "air\n"
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assert query("SELECT dictGetString('dep_x', 'a', toUInt64(3))") == "XX\n"
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assert query("SELECT dictGetString('dep_y', 'a', toUInt64(3))") == "YY\n"
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assert query("SELECT dictGetString('dep_z', 'a', toUInt64(3))") == "ZZ\n"
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# Update the source table.
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query("INSERT INTO test.elements VALUES (3, 'fire', 30, 8)")
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# Wait for dictionaries to be reloaded.
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assert_eq_with_retry(instance, "SELECT dictHas('dep_y', toUInt64(3))", "1", sleep_time = 2, retry_count = 10)
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assert query("SELECT dictGetString('dep_x', 'a', toUInt64(3))") == "XX\n"
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assert query("SELECT dictGetString('dep_y', 'a', toUInt64(3))") == "fire\n"
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assert query("SELECT dictGetString('dep_z', 'a', toUInt64(3))") == "ZZ\n"
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# dep_x and dep_z are updated only when there `intDiv(count(), 4)` is changed.
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query("INSERT INTO test.elements VALUES (4, 'ether', 404, 0.001)")
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assert_eq_with_retry(instance, "SELECT dictHas('dep_x', toUInt64(4))", "1", sleep_time = 2, retry_count = 10)
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assert query("SELECT dictGetString('dep_x', 'a', toUInt64(3))") == "fire\n"
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assert query("SELECT dictGetString('dep_y', 'a', toUInt64(3))") == "fire\n"
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assert query("SELECT dictGetString('dep_z', 'a', toUInt64(3))") == "fire\n"
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assert query("SELECT dictGetString('dep_x', 'a', toUInt64(4))") == "ether\n"
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assert query("SELECT dictGetString('dep_y', 'a', toUInt64(4))") == "ether\n"
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assert query("SELECT dictGetString('dep_z', 'a', toUInt64(4))") == "ether\n"
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