ClickHouse/tests/queries/0_stateless/01586_columns_pruning.sql
2024-05-30 19:41:08 +00:00

7 lines
477 B
SQL

SET max_memory_usage = 10000000000;
-- Unneeded column is removed from subquery.
SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) FROM numbers(1000000) GROUP BY number);
-- Unneeded column cannot be removed from subquery and the query is out of memory
SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) AS agg FROM numbers(1000000) GROUP BY number HAVING notEmpty(agg)); -- { serverError MEMORY_LIMIT_EXCEEDED }