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b9125bb351
* Cleanup DataTypeCustomSimpleAggregateFunction::checkSupportedFunctions() Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com> * Remove unused GroupArrayGeneralListImpl Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com> * Introduce groupArrayLast() (useful to store last X values) Also do some refactoring to make code cleaner: - rename insert() to insertWithSampler() (since it is used only for groupArraySample()) - split merge methods into Last/RNG/... Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com> Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
35 lines
2.1 KiB
SQL
35 lines
2.1 KiB
SQL
drop table if exists simple_agg_groupArrayLastArray;
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-- { echo }
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-- BAD_ARGUMENTS
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select groupArrayLast(number+1) from numbers(5); -- { serverError BAD_ARGUMENTS }
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select groupArrayLastArray([number+1]) from numbers(5); -- { serverError BAD_ARGUMENTS }
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-- groupArrayLast by number
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select groupArrayLast(1)(number+1) from numbers(5);
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select groupArrayLast(3)(number+1) from numbers(5);
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select groupArrayLast(3)(number+1) from numbers(10);
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-- groupArrayLast by String
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select groupArrayLast(3)((number+1)::String) from numbers(5);
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select groupArrayLast(3)((number+1)::String) from numbers(10);
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-- groupArrayLastArray
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select groupArrayLastArray(3)([1,2,3,4,5,6]);
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select groupArrayLastArray(3)(['1','2','3','4','5','6']);
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-- groupArrayLastMerge
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-- [10,8,9] + [10,8,9] => [10,10,9] => [10,10,8] => [9,10,8]
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-- ^ ^ ^ ^^
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-- (position to insert at)
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select groupArrayLast(3)(number+1) state from remote('127.{1,1}', view(select * from numbers(10)));
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select groupArrayLast(3)((number+1)::String) state from remote('127.{1,1}', view(select * from numbers(10)));
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select groupArrayLast(3)([number+1]) state from remote('127.{1,1}', view(select * from numbers(10)));
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select groupArrayLast(100)(number+1) state from remote('127.{1,1}', view(select * from numbers(10)));
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select groupArrayLast(100)((number+1)::String) state from remote('127.{1,1}', view(select * from numbers(10)));
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select groupArrayLast(100)([number+1]) state from remote('127.{1,1}', view(select * from numbers(10)));
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-- SimpleAggregateFunction
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create table simple_agg_groupArrayLastArray (key Int, value SimpleAggregateFunction(groupArrayLastArray(5), Array(UInt64))) engine=AggregatingMergeTree() order by key;
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insert into simple_agg_groupArrayLastArray values (1, [1,2,3]), (1, [4,5,6]), (2, [4,5,6]), (2, [1,2,3]);
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select * from simple_agg_groupArrayLastArray order by key, value;
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system stop merges simple_agg_groupArrayLastArray;
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insert into simple_agg_groupArrayLastArray values (1, [7,8]), (2, [7,8]);
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select * from simple_agg_groupArrayLastArray order by key, value;
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select * from simple_agg_groupArrayLastArray final order by key, value;
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