CREATE TABLE IF NOT EXISTS topXtest(A Int64) ENGINE = Memory;
INSERT INTO topXtest SELECT number FROM numbers(100);
INSERT INTO topXtest SELECT number FROM numbers(30);
INSERT INTO topXtest SELECT number FROM numbers(10);

SELECT length(topK(30)(A)) FROM topXtest;
SELECT length(topK(30)(A)) FROM remote('localhost,127.0.0.1', currentDatabase(), topXtest);

SELECT length(topK(A)) FROM topXtest;
SELECT length(topK(A)) FROM remote('localhost,127.0.0.1', currentDatabase(), topXtest);

SELECT length(topK(3)(A)) FROM topXtest;
SELECT length(topK(3)(A)) FROM remote('localhost,127.0.0.1', currentDatabase(), topXtest);

DROP TABLE topXtest;