ClickHouse/tests/integration/test_backward_compatibility/test_data_skipping_indices.py

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# pylint: disable=line-too-long
# pylint: disable=unused-argument
# pylint: disable=redefined-outer-name
import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__, name="skipping_indices")
node = cluster.add_instance('node', image='yandex/clickhouse-server', tag='21.6', stay_alive=True, with_installed_binary=True)
@pytest.fixture(scope="module")
def start_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
# TODO: cover other types too, but for this we need to add something like
# restart_with_tagged_version(), since right now it is not possible to
# switch to old tagged clickhouse version.
def test_index(start_cluster):
node.query("""
CREATE TABLE data
(
key Int,
value Nullable(Int),
INDEX value_index value TYPE minmax GRANULARITY 1
)
ENGINE = MergeTree
ORDER BY key;
INSERT INTO data SELECT number, number FROM numbers(10000);
SELECT * FROM data WHERE value = 20000 SETTINGS force_data_skipping_indices = 'value_index' SETTINGS force_data_skipping_indices = 'value_index', max_rows_to_read=1;
""")
node.restart_with_latest_version()
node.query("""
SELECT * FROM data WHERE value = 20000 SETTINGS force_data_skipping_indices = 'value_index' SETTINGS force_data_skipping_indices = 'value_index', max_rows_to_read=1;
DROP TABLE data;
""")