text: -- Tags: shard
  
  DROP TABLE IF EXISTS group_uniq_arr_int;
  CREATE TABLE group_uniq_arr_int ENGINE = Memory AS
  	SELECT g as id, if(c == 0, [v], if(c == 1, emptyArrayInt64(), [v, v])) as v FROM
  		(SELECT intDiv(number%1000000, 100) as v, intDiv(number%100, 10) as g, number%10 as c FROM system.numbers WHERE c < 3 LIMIT 10000000);
  
  SELECT length(groupUniqArray(v)) FROM group_uniq_arr_int GROUP BY id ORDER BY id;
  SELECT length(groupUniqArray(v)) FROM remote('127.0.0.{2,3,4,5}', currentDatabase(), 'group_uniq_arr_int') GROUP BY id ORDER BY id;
  SELECT length(groupUniqArray(10)(v)) FROM group_uniq_arr_int GROUP BY id ORDER BY id;
  SELECT length(groupUniqArray(100000)(v)) FROM group_uniq_arr_int GROUP BY id ORDER BY id;
  
  
  DROP TABLE IF EXISTS group_uniq_arr_int;
  