# 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; """)