drop table if exists simple_agg_groupArrayLastArray; -- { 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); select groupArrayLast(3)(number+1) from numbers(5); select groupArrayLast(3)(number+1) from numbers(10); -- groupArrayLast by String select groupArrayLast(3)((number+1)::String) from numbers(5); select groupArrayLast(3)((number+1)::String) from numbers(10); -- groupArrayLastArray select groupArrayLastArray(3)([1,2,3,4,5,6]); select groupArrayLastArray(3)(['1','2','3','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))); select groupArrayLast(3)((number+1)::String) state from remote('127.{1,1}', view(select * from numbers(10))); select groupArrayLast(3)([number+1]) state from remote('127.{1,1}', view(select * from numbers(10))); select groupArrayLast(100)(number+1) state from remote('127.{1,1}', view(select * from numbers(10))); select groupArrayLast(100)((number+1)::String) state from remote('127.{1,1}', view(select * from numbers(10))); select groupArrayLast(100)([number+1]) state from remote('127.{1,1}', view(select * from numbers(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; 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; select * from simple_agg_groupArrayLastArray final order by key, value;