-- Tags: no-fasttest DROP TABLE IF EXISTS test.avro; SET max_threads = 1, max_block_size = 8192, min_insert_block_size_rows = 8192, min_insert_block_size_bytes = 1048576; -- lower memory usage CREATE TABLE test.avro AS test.hits ENGINE = File(Avro); INSERT INTO test.avro SELECT * FROM test.hits LIMIT 10000; SELECT sum(cityHash64(*)) FROM (SELECT * FROM test.hits LIMIT 10000); SELECT sum(cityHash64(*)) FROM test.avro; DROP TABLE test.avro;