-- { echo }
-- BAD_ARGUMENTS
select groupArrayLast(number+1) from numbers(5); -- { serverError BAD_ARGUMENTS }
select groupArrayLastArray([number+1]) from numbers(5); -- { serverError BAD_ARGUMENTS }
-- groupArrayLast by number
select groupArrayLast(1)(number+1) from numbers(5);
[5]
select groupArrayLast(3)(number+1) from numbers(5);
[4,5,3]
select groupArrayLast(3)(number+1) from numbers(10);
[10,8,9]
-- groupArrayLast by String
select groupArrayLast(3)((number+1)::String) from numbers(5);
['4','5','3']
select groupArrayLast(3)((number+1)::String) from numbers(10);
['10','8','9']
-- groupArrayLastArray
select groupArrayLastArray(3)([1,2,3,4,5,6]);
[4,5,6]
select groupArrayLastArray(3)(['1','2','3','4','5','6']);
['4','5','6']
-- groupArrayLastMerge
-- [10,8,9] + [10,8,9]     => [10,10,9] => [10,10,8] => [9,10,8]
--     ^          ^                  ^      ^^
-- (position to insert at)
select groupArrayLast(3)(number+1) state from remote('127.{1,1}', view(select * from numbers(10)));
[9,10,8]
select groupArrayLast(3)((number+1)::String) state from remote('127.{1,1}', view(select * from numbers(10)));
['9','10','8']
select groupArrayLast(3)([number+1]) state from remote('127.{1,1}', view(select * from numbers(10)));
[[9],[10],[8]]
select groupArrayLast(100)(number+1) state from remote('127.{1,1}', view(select * from numbers(10)));
[1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10]
select groupArrayLast(100)((number+1)::String) state from remote('127.{1,1}', view(select * from numbers(10)));
['1','2','3','4','5','6','7','8','9','10','1','2','3','4','5','6','7','8','9','10']
select groupArrayLast(100)([number+1]) state from remote('127.{1,1}', view(select * from numbers(10)));
[[1],[2],[3],[4],[5],[6],[7],[8],[9],[10],[1],[2],[3],[4],[5],[6],[7],[8],[9],[10]]
-- SimpleAggregateFunction
create table simple_agg_groupArrayLastArray (key Int, value SimpleAggregateFunction(groupArrayLastArray(5), Array(UInt64))) engine=AggregatingMergeTree() order by key;
insert into simple_agg_groupArrayLastArray values (1, [1,2,3]), (1, [4,5,6]), (2, [4,5,6]), (2, [1,2,3]);
select * from simple_agg_groupArrayLastArray order by key, value;
1	[6,2,3,4,5]
2	[3,5,6,1,2]
system stop merges simple_agg_groupArrayLastArray;
insert into simple_agg_groupArrayLastArray values (1, [7,8]), (2, [7,8]);
select * from simple_agg_groupArrayLastArray order by key, value;
1	[6,2,3,4,5]
1	[7,8]
2	[3,5,6,1,2]
2	[7,8]
select * from simple_agg_groupArrayLastArray final order by key, value;
1	[7,8,3,4,5]
2	[7,8,6,1,2]