# pylint: disable=unused-argument # pylint: disable=redefined-outer-name # pylint: disable=line-too-long import pytest from helpers.cluster import ClickHouseCluster from helpers.client import QueryRuntimeException cluster = ClickHouseCluster(__file__) node_default = cluster.add_instance("node_default") node_buffer_profile = cluster.add_instance( "node_buffer_profile", main_configs=["configs/buffer_profile.xml"], user_configs=["configs/users.d/buffer_profile.xml"], ) @pytest.fixture(scope="module", autouse=True) def start_cluster(): try: cluster.start() yield cluster finally: cluster.shutdown() def bootstrap(node): node.query( """ CREATE TABLE data (key Int) Engine=MergeTree() ORDER BY key PARTITION BY key % 2; CREATE TABLE buffer AS data Engine=Buffer(currentDatabase(), data, /* settings for manual flush only */ 1, /* num_layers */ 10e6, /* min_time, placeholder */ 10e6, /* max_time, placeholder */ 0, /* min_rows */ 10e6, /* max_rows */ 0, /* min_bytes */ 80e6 /* max_bytes */ ); INSERT INTO buffer SELECT * FROM numbers(100); """ ) def test_default_profile(): bootstrap(node_default) # flush the buffer node_default.query("OPTIMIZE TABLE buffer") def test_buffer_profile(): bootstrap(node_buffer_profile) with pytest.raises( QueryRuntimeException, match="Too many partitions for single INSERT block" ): # flush the buffer node_buffer_profile.query("OPTIMIZE TABLE buffer")