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63 lines
2.8 KiB
Python
63 lines
2.8 KiB
Python
import time
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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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instance_test_mutations = cluster.add_instance('test_mutations_with_merge_tree', main_configs=['configs/config.xml'],
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user_configs=['configs/users.xml'])
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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_test_mutations.query(
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'''CREATE TABLE test_mutations_with_ast_elements(date Date, a UInt64, b String) ENGINE = MergeTree(date, (a, date), 8192)''')
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instance_test_mutations.query(
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'''INSERT INTO test_mutations_with_ast_elements SELECT '2019-07-29' AS date, 1, toString(number) FROM numbers(1) SETTINGS force_index_by_date = 0, force_primary_key = 0''')
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yield cluster
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finally:
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cluster.shutdown()
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def test_mutations_with_merge_background_task(started_cluster):
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instance_test_mutations.query('''SYSTEM STOP MERGES test_mutations_with_ast_elements''')
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## The number of asts per query is 15
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for execution_times_for_mutation in range(100):
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instance_test_mutations.query(
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'''ALTER TABLE test_mutations_with_ast_elements DELETE WHERE 1 = 1 AND toUInt32(b) IN (1)''')
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all_done = False
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for wait_times_for_mutation in range(100): # wait for replication 80 seconds max
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time.sleep(0.8)
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def get_done_mutations(instance):
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instance_test_mutations.query('''DETACH TABLE test_mutations_with_ast_elements''')
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instance_test_mutations.query('''ATTACH TABLE test_mutations_with_ast_elements''')
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return int(instance.query(
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"SELECT sum(is_done) FROM system.mutations WHERE table = 'test_mutations_with_ast_elements' SETTINGS force_index_by_date = 0, force_primary_key = 0").rstrip())
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if get_done_mutations(instance_test_mutations) == 100:
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all_done = True
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break
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print(instance_test_mutations.query(
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"SELECT mutation_id, command, parts_to_do, is_done FROM system.mutations WHERE table = 'test_mutations_with_ast_elements' SETTINGS force_index_by_date = 0, force_primary_key = 0 FORMAT TSVWithNames"))
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assert all_done
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def test_mutations_with_truncate_table(started_cluster):
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instance_test_mutations.query('''SYSTEM STOP MERGES test_mutations_with_ast_elements''')
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## The number of asts per query is 15
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for execute_number in range(100):
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instance_test_mutations.query(
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'''ALTER TABLE test_mutations_with_ast_elements DELETE WHERE 1 = 1 AND toUInt32(b) IN (1)''')
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instance_test_mutations.query("TRUNCATE TABLE test_mutations_with_ast_elements")
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assert instance_test_mutations.query(
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"SELECT COUNT() FROM system.mutations WHERE table = 'test_mutations_with_ast_elements SETTINGS force_index_by_date = 0, force_primary_key = 0'").rstrip() == '0'
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