ClickHouse/tests/queries/0_stateless/00981_topK_topKWeighted_long.sql

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DROP TABLE IF EXISTS topk;
CREATE TABLE topk (val1 String, val2 UInt32) ENGINE = MergeTree ORDER BY val1;
INSERT INTO topk SELECT toString(number), number FROM numbers(3000000);
INSERT INTO topk SELECT toString(number % 10), 999999999 FROM numbers(1000000);
SELECT arraySort(topK(10)(val1)) FROM topk;
SELECT arraySort(topKWeighted(10)(val1, val2)) FROM topk;
SELECT topKWeighted(10)(toString(number), number) from numbers(3000000);
DROP TABLE topk;