SELECT '#02136_scalar_subquery_1', (SELECT max(number) FROM numbers(1000)) as n; SELECT '#02136_scalar_subquery_2', (SELECT max(number) FROM numbers(1000)) as n, (SELECT min(number) FROM numbers(1000)) as n2; SELECT '#02136_scalar_subquery_3', (SELECT max(number) FROM numbers(1000)) as n, (SELECT max(number) FROM numbers(1000)) as n2; -- Cached SELECT '#02136_scalar_subquery_4', (SELECT max(number) FROM numbers(1000)) as n FROM system.numbers LIMIT 2; -- Cached SYSTEM FLUSH LOGS; SELECT read_rows, query FROM system.query_log WHERE event_date >= yesterday() AND type = 'QueryFinish' AND current_database == currentDatabase() AND query LIKE 'SELECT ''#02136_scalar_subquery_%' ORDER BY query ASC;